Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs | Paper Citation Record

Observation 66aa6a51-444c-4329-8388-fc20fdb5976d · outbound

This paper cites Planck 2018 Results:VI. Cosmological Parameters (Corrigendum).

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs Planck 2018 Results:VI. Cosmological Parameters (Corrigendum)

Reference 1

Resolution: verified exact; doi, observed 2026-06-25T20:08:18.660444Z

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Observation 0f494117-7d17-439f-8649-67d1aa4ed39c · outbound

This paper cites an unresolved cited work.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs Unresolved cited work

Reference 2

Resolution: verified exact; doi, observed 2026-06-25T20:08:18.865268Z

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Observation 1e88bddb-1533-4ffb-855d-57ec952862d2 · outbound

This paper cites A., Dors, O.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs A., Dors, O

Reference 3

Resolution: metadata mismatch; doi, observed 2026-06-25T20:08:18.897804Z

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Observation 414dd4ae-971d-4af5-aff3-1dc634480be0 · outbound

This paper cites A., Sutherland R.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs A., Sutherland R

Reference 4

Resolution: verified exact; doi, observed 2026-06-25T20:08:18.896083Z

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Observation 6c1d7936-5ef1-4dfd-a650-073f532f1658 · outbound

This paper cites Composite models calculated by photoionization + shocks.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs Composite models calculated by photoionization + shocks

Reference 5

Resolution: verified exact; doi, observed 2026-06-25T20:08:18.852103Z

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Observation f9fc3051-f055-4775-bb5e-74fe3cf6b6f4 · outbound

This paper cites The MAPPINGS III Library of Fast Radiative Shock Models.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs The MAPPINGS III Library of Fast Radiative Shock Models

Reference 6

Resolution: verified exact; local_arxiv, observed 2026-06-25T20:08:18.841122Z

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Observation 5266436d-a0a3-4b4f-a976-8e8e128800cd · outbound

This paper cites A grid of composite models for the simulation of the emission-line spectra from the NLR of active galaxies.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs A grid of composite models for the simulation of the emission-line spectra from the NLR of active galaxies

Reference 7

Resolution: verified exact; local_arxiv, observed 2026-06-25T20:08:18.853180Z

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Observation 85b9fa4a-55ed-44aa-b5f2-5544898497a9 · outbound

This paper cites The MOSFIRE Deep Evolution Field (MOSDEF) Survey: Rest-Frame Optical Spectroscopy for ~1500 H-Selected Galaxies at 1.37 < z < 3.8.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs The MOSFIRE Deep Evolution Field (MOSDEF) Survey: Rest-Frame Optical Spectroscopy for ~1500 H-Selected Galaxies at 1.37 < z < 3.8

Reference 8

Resolution: verified exact; local_arxiv, observed 2026-06-25T20:08:18.731719Z

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Observation e3d154e6-abb9-4dd4-93e7-bc60b072f743 · outbound

This paper cites Binary Population and Spectral Synthesis Version 2.1: construction, observational verification and new results.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs Binary Population and Spectral Synthesis Version 2.1: construction, observational verification and new results

Reference 9

Resolution: verified exact; local_arxiv, observed 2026-06-25T20:08:18.859470Z

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Observation 608c26cc-18e5-4ed5-a034-5c54678ad2be · outbound

This paper cites Comparison of Theoretical Starburst Photoionisation Models for Optical Diagnostics.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs Comparison of Theoretical Starburst Photoionisation Models for Optical Diagnostics

Reference 10

Resolution: verified exact; local_arxiv, observed 2026-06-25T20:08:18.811848Z

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Observation d325f7a6-3ed8-472b-bd1d-d7acc228bb96 · outbound

This paper cites , year = 1957, month = mar, volume =.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs , year = 1957, month = mar, volume =

Reference 11

Resolution: verified exact; doi, observed 2026-06-25T20:08:18.802752Z

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No event found in the named queried sources as of 2026-08-11T06:34:44.6726+00:00.

Observation 42c51d68-3752-4439-b6ae-83f7b842c463 · outbound

This paper cites , year = 1959, month = oct, volume =.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs , year = 1959, month = oct, volume =

Reference 12

Resolution: verified exact; doi, observed 2026-06-25T20:08:18.865115Z

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No event found in the named queried sources as of 2026-08-11T06:34:44.6726+00:00.

Observation 286cae46-0a9f-456c-ad74-72428b5d687a · outbound

This paper cites , year = 1970, month = mar, volume =.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs , year = 1970, month = mar, volume =

Reference 13

Resolution: verified exact; doi, observed 2026-06-25T20:08:18.748375Z

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No event found in the named queried sources as of 2026-08-11T06:34:44.6726+00:00.

Observation 6bb7803e-944e-4e14-9eb1-c920e35caebc · outbound

This paper cites Chemical Abundance Calibrations for the Narrow-Line-Region of Active Galaxies.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs Chemical Abundance Calibrations for the Narrow-Line-Region of Active Galaxies

Reference 14

Resolution: verified exact; local_arxiv, observed 2026-06-25T20:08:18.871513Z

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No event found in the named queried sources as of 2026-08-11T06:34:44.6726+00:00.

Observation 0440fcf6-ecdf-4ee8-ab9d-2e2eb7d611e7 · outbound

This paper cites P., Dors, O.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs P., Dors, O

Reference 15

Resolution: metadata mismatch; doi, observed 2026-06-25T20:08:18.857644Z

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No event found in the named queried sources as of 2026-08-11T06:34:44.6726+00:00.

Observation d8157ae0-90a5-4a58-b52c-ed85209b2d5f · outbound

This paper cites New metallicity calibration for Seyfert 2 galaxies based on the N2O2 index.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs New metallicity calibration for Seyfert 2 galaxies based on the N2O2 index

Reference 16

Resolution: verified exact; local_arxiv, observed 2026-06-25T20:08:18.808506Z

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Observation 53d2f564-b906-4cc2-86e1-2918d4eb422c · outbound

This paper cites , year = 1973, month = jan, volume =.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs , year = 1973, month = jan, volume =

Reference 17

Resolution: verified exact; doi, observed 2026-06-25T20:08:18.861925Z

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No event found in the named queried sources as of 2026-08-11T06:34:44.6726+00:00.

Observation 079b0108-1aef-4c7e-8257-938dcf0ef268 · outbound

This paper cites an unresolved cited work.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs Unresolved cited work

Reference 18

Resolution: verified exact; doi, observed 2026-06-25T20:08:18.562922Z

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Observation 6210ef0f-f0a2-495d-879a-e382a723b793 · outbound

This paper cites and Fowler, William A.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs and Fowler, William A

Reference 19

Resolution: metadata mismatch; doi, observed 2026-06-25T20:08:18.660284Z

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Observation 0f0688cc-4c10-48d5-9fcd-295100f1d162 · outbound

This paper cites , keywords =.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs , keywords =

Reference 20

Resolution: verified exact; doi, observed 2026-06-25T20:08:18.506578Z

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No event found in the named queried sources as of 2026-08-11T06:34:44.6726+00:00.

Observation c695212d-59dc-41b3-926e-85b7cb4d7a7f · outbound

This paper cites Big Bang Nucleosynthesis: 2015.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs Big Bang Nucleosynthesis: 2015

Reference 21

Resolution: metadata mismatch; local_arxiv, observed 2026-06-25T20:08:18.674351Z

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Observation 5e608240-b100-40f6-be10-b4e8cacd5b0b · outbound

This paper cites K., Weinberg, D.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs K., Weinberg, D

Reference 22

Resolution: verified exact; doi, observed 2026-06-25T20:08:18.662129Z

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No event found in the named queried sources as of 2026-08-11T06:34:44.6726+00:00.

Observation b204e6f4-d7c8-405c-ac0e-2f0058963f62 · outbound

This paper cites The primordial helium abundance from observations of extragalactic H II regions.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs The primordial helium abundance from observations of extragalactic H II regions

Reference 23

Resolution: verified exact; doi, observed 2026-06-25T20:08:18.581492Z

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No event found in the named queried sources as of 2026-08-11T06:34:44.6726+00:00.

Observation 940d9db9-47fa-41ca-8bd3-7a51532f0d08 · outbound

This paper cites Determination of the primordial helium abundance based on NGC 346 an HII region of the Small Magellanic Cloud.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs Determination of the primordial helium abundance based on NGC 346 an HII region of the Small Magellanic Cloud

Reference 24

Resolution: verified exact; local_arxiv, observed 2026-06-25T20:08:18.641001Z

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No event found in the named queried sources as of 2026-08-11T06:34:44.6726+00:00.

Observation f8720518-bff8-487d-a453-0994641cbd93 · outbound

This paper cites A., Chisholm , J., Erb , D.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs A., Chisholm , J., Erb , D

Reference 25

Resolution: verified exact; doi, observed 2026-06-25T20:08:18.550123Z

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No event found in the named queried sources as of 2026-08-11T06:34:44.6726+00:00.

Observation a323fdab-402f-4bd4-8fe7-ee20732905eb · outbound

This paper cites keywords =.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs keywords =

Reference 26

Resolution: verified exact; doi, observed 2026-06-25T20:08:18.586469Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-11T06:34:44.6726+00:00.

Observation bdce18b5-76f9-4e18-8d5e-306bc4a6196b · outbound

This paper cites EMPRESS. XV. A New Determination of the Primordial Helium Abundance Suggesting a Moderately Low $Y_\mathrm{P}$ Value.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs EMPRESS. XV. A New Determination of the Primordial Helium Abundance Suggesting a Moderately Low $Y_\mathrm{P}$ Value

Reference 27

Resolution: verified exact; local_arxiv, observed 2026-06-25T20:08:18.667380Z

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No event found in the named queried sources as of 2026-08-11T06:34:44.6726+00:00.

Observation 03618622-93ce-494e-b9e4-5639450bcb9f · outbound

This paper cites J., Prochaska, J.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs J., Prochaska, J

Reference 28

Resolution: verified exact; doi, observed 2026-06-25T20:08:18.573164Z

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No event found in the named queried sources as of 2026-08-11T06:34:44.6726+00:00.

Observation cd60a494-2375-4a6b-8e27-63dd465c29e7 · outbound

This paper cites Light Elements in the Universe , year = 2010, editor =.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs Light Elements in the Universe , year = 2010, editor =

Reference 29

Resolution: verified exact; doi, observed 2026-06-25T20:08:18.586949Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-11T06:34:44.6726+00:00.

Observation ed30d5cf-75ae-436f-b5fa-3347f89140ae · outbound

This paper cites , keywords =.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs , keywords =

Reference 30

Resolution: verified exact; doi, observed 2026-06-25T20:08:18.576565Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-11T06:34:44.6726+00:00.

Observation 37b97ef5-8865-4667-879e-d506500c0b70 · outbound

This paper cites Empirical abundance calibration.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs Empirical abundance calibration

Reference 31

Resolution: verified exact; doi, observed 2026-06-25T20:08:18.620441Z

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No event found in the named queried sources as of 2026-08-11T06:34:44.6726+00:00.

Observation 128f37d0-1215-4ae0-a218-52010d7d7da8 · outbound

This paper cites , keywords =.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs , keywords =

Reference 32

Resolution: verified exact; doi, observed 2026-06-25T20:08:18.553451Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-11T06:34:44.6726+00:00.

Observation 3f204c9e-ff91-477c-8bc2-5af1632da732 · outbound

This paper cites , keywords =.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs , keywords =

Reference 33

Resolution: verified exact; doi, observed 2026-06-25T20:08:18.588325Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-11T06:34:44.6726+00:00.

Observation 55860335-b2fd-4c72-b8f6-467028ff63e7 · outbound

This paper cites Probing the Physics of Narrow Line Regions in Active Galaxies II: The Siding Spring Southern Seyfert Spectroscopic Snapshot Survey (S7).

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs Probing the Physics of Narrow Line Regions in Active Galaxies II: The Siding Spring Southern Seyfert Spectroscopic Snapshot Survey (S7)

Reference 34

Resolution: verified exact; local_arxiv, observed 2026-06-25T20:08:18.653942Z

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No event found in the named queried sources as of 2026-08-11T06:34:44.6726+00:00.

Observation d3d5a5e3-f92d-4877-b063-ccf2cdc10ebb · outbound

This paper cites The Sloan Digital Sky Survey: Technical Summary.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs The Sloan Digital Sky Survey: Technical Summary

Reference 35

Resolution: verified exact; local_arxiv, observed 2026-06-25T20:08:18.675959Z

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No event found in the named queried sources as of 2026-08-11T06:34:44.6726+00:00.

Observation 68d236f8-a3e7-4c92-98e9-bf254eb16ae0 · outbound

This paper cites J., & Sutherland, R.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs J., & Sutherland, R

Reference 36

Resolution: verified exact; doi, observed 2026-06-25T20:08:18.653090Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-11T06:34:44.6726+00:00.

Observation 18ef6f29-99de-446b-b880-a8e57f149332 · outbound

This paper cites C., et al., 2000, @doi [ ] 10.1046/j.1365-8711.2000.03904.x , http://adsabs.harvard.edu/abs/2000MNRAS.318L..65F 318, L65.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs C., et al., 2000, @doi [ ] 10.1046/j.1365-8711.2000.03904.x , http://adsabs.harvard.edu/abs/2000MNRAS.318L..65F 318, L65

Reference 37

Resolution: metadata mismatch; arxiv_id, observed 2026-06-25T20:08:18.673148Z

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Observation 61ecabff-ee8c-4835-907b-ecf075c0ca77 · outbound

This paper cites , year = 1992, month = oct, volume =.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs , year = 1992, month = oct, volume =

Reference 38

Resolution: unresolved; no resolver link, observed 2026-06-25T20:05:16.560546Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Observation d2a6ddeb-137c-4f2a-a083-3a31a53dc8ef · outbound

This paper cites , keywords =.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs , keywords =

Reference 39

Resolution: verified exact; doi, observed 2026-06-25T20:08:18.623197Z

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No event found in the named queried sources as of 2026-08-11T06:34:44.6726+00:00.

Observation 8263678d-ed1f-4bad-8889-53a471b3e35f · outbound

This paper cites keywords =.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs keywords =

Reference 40

Resolution: verified exact; doi, observed 2026-06-25T20:08:18.535185Z

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No event found in the named queried sources as of 2026-08-11T06:34:44.6726+00:00.

Observation 9b5f6d3f-e66d-4550-b721-ab0b87a650c6 · outbound

This paper cites , keywords =.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs , keywords =

Reference 41

Resolution: verified exact; doi, observed 2026-06-25T20:08:18.614574Z

Source-reported events for the cited work

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Observation f416c5ed-7c55-4d10-8284-de057bb16894 · outbound

This paper cites doi:10.1093/mnras/stad506 , eprint =.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs doi:10.1093/mnras/stad506 , eprint =

Reference 42

Resolution: verified exact; doi, observed 2026-06-25T20:08:18.995242Z

Source-reported events for the cited work

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Observation 2cdf7f20-74a3-4edb-97ab-21feab9d663c · outbound

This paper cites Chemical Abundances in Star-Forming Galaxies at High Redshift.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs Chemical Abundances in Star-Forming Galaxies at High Redshift

Reference 43

Resolution: verified exact; local_arxiv, observed 2026-06-25T20:08:19.005560Z

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Observation dcb44917-b4c2-4f2d-afca-e83d9553e908 · outbound

This paper cites 2021, http://dx.doi.org/10.1093/mnras/stab2058 , 507, 74 , arXiv: 2107.07635.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs 2021, http://dx.doi.org/10.1093/mnras/stab2058 , 507, 74 , arXiv: 2107.07635

Reference 44

Resolution: verified exact; doi, observed 2026-06-25T20:08:19.012300Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-11T06:34:44.6726+00:00.

Observation a3a19bb7-27fb-488e-92cf-1979c86f3c3b · outbound

This paper cites keywords =.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs keywords =

Reference 45

Resolution: verified exact; doi, observed 2026-06-25T20:08:19.024110Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-11T06:34:44.6726+00:00.

Observation 68c4382e-ff24-4326-a165-bf30e30055e4 · outbound

This paper cites Gas metallicity diagnostics in star-forming galaxies.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs Gas metallicity diagnostics in star-forming galaxies

Reference 46

Resolution: verified exact; local_arxiv, observed 2026-06-25T20:08:18.983755Z

Source-reported events for the cited work

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Observation e52b3b45-c049-4812-a35f-0e3455eaaa1f · outbound

This paper cites Chemical Evolution of High-Redshift Radio Galaxies.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs Chemical Evolution of High-Redshift Radio Galaxies

Reference 47

Resolution: verified exact; local_arxiv, observed 2026-06-25T20:08:18.937868Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-11T06:34:44.6726+00:00.

Observation 697b8284-24f0-4bcc-977c-8f55cc1c0495 · outbound

This paper cites G., et al.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs G., et al

Reference 48

Resolution: verified exact; doi, observed 2026-06-25T20:08:19.025782Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-11T06:34:44.6726+00:00.

Observation d879f612-ab4d-4aa2-bc10-f91c6209c7c4 · outbound

This paper cites and Shibahashi , H.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs and Shibahashi , H

Reference 49

Resolution: metadata mismatch; arxiv_id, observed 2026-06-25T20:08:18.986621Z

Source-reported events for the cited work

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Observation 65a4789e-58d2-4779-b1fb-5bc57ca19c4e · outbound

This paper cites keywords =.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs keywords =

Reference 50

Resolution: verified exact; doi, observed 2026-06-25T20:08:19.007669Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-11T06:34:44.6726+00:00.

Observation fb5ceb91-58b2-46b9-bc93-c6daec685240 · outbound

This paper cites The Seventh Data Release of the Sloan Digital Sky Survey.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs The Seventh Data Release of the Sloan Digital Sky Survey

Reference 51

Resolution: verified exact; local_arxiv, observed 2026-06-25T20:08:19.028587Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-11T06:34:44.6726+00:00.

Observation 16a06cb6-bb0f-4136-8a08-8c020a990f3b · outbound

This paper cites 2025, MNRAS, 541, L71, doi: 10.1093/mnrasl/slaf056.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs 2025, MNRAS, 541, L71, doi: 10.1093/mnrasl/slaf056

Reference 52

Resolution: verified exact; doi, observed 2026-06-25T20:08:19.025365Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-11T06:34:44.6726+00:00.

Observation 330aaf7f-57f0-426b-90c8-6df8bd9e606b · outbound

This paper cites , keywords =.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs , keywords =

Reference 53

Resolution: verified exact; doi, observed 2026-06-25T20:08:18.988505Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-11T06:34:44.6726+00:00.

Observation 4bd9f285-a9ed-4159-8110-59f6e52fd090 · outbound

This paper cites keywords =.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs keywords =

Reference 54

Resolution: verified exact; doi, observed 2026-06-25T20:08:18.939398Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-11T06:34:44.6726+00:00.

Observation ee695c35-eadd-4c28-9e02-bf77f66376a3 · outbound

This paper cites , keywords =.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs , keywords =

Reference 55

Resolution: verified exact; doi, observed 2026-06-25T20:08:19.018509Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-11T06:34:44.6726+00:00.

Observation cb90c810-4b66-496f-8e28-cc07356d6401 · outbound

This paper cites keywords =.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs keywords =

Reference 56

Resolution: verified exact; doi, observed 2026-06-25T20:08:18.978228Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-11T06:34:44.6726+00:00.

Observation 85f04d20-feed-4c34-bfa9-50656c58ce44 · outbound

This paper cites Potential Nitrogen Enrichment via Direct-Collapse Wolf-Rayet Stars in a $z=4.7$ Star-Forming Galaxy.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs Potential Nitrogen Enrichment via Direct-Collapse Wolf-Rayet Stars in a $z=4.7$ Star-Forming Galaxy

Reference 57

Resolution: verified exact; arxiv_id, observed 2026-06-25T20:08:18.981043Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-11T06:34:44.6726+00:00.

Observation 03d26f2b-5677-41d9-962e-d72490887646 · outbound

This paper cites Z., Cullen , F., Carnall , A.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs Z., Cullen , F., Carnall , A

Reference 58

Resolution: verified exact; doi, observed 2026-06-25T20:08:18.928900Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-11T06:34:44.6726+00:00.

Observation e43bc9c1-a8f3-4b59-a996-8d582e78aa36 · outbound

This paper cites arXiv e-prints , keywords =.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs arXiv e-prints , keywords =

Reference 59

Resolution: verified exact; arxiv_id, observed 2026-06-25T20:08:19.001195Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-11T06:34:44.6726+00:00.

Observation dc24d3a0-9b41-4965-a920-f59151bbcd95 · outbound

This paper cites 2025, ApJ, 989, 75, doi: 10.3847/1538-4357/ade706 P´ erez-Gonz´ alez, P.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs 2025, ApJ, 989, 75, doi: 10.3847/1538-4357/ade706 P´ erez-Gonz´ alez, P

Reference 60

Resolution: verified exact; doi, observed 2026-06-25T20:08:19.003040Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-11T06:34:44.6726+00:00.

Observation 6e591ced-2edf-4359-9d4b-f75e06d95fde · outbound

This paper cites , keywords =.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs , keywords =

Reference 61

Resolution: verified exact; doi, observed 2026-06-25T20:08:18.944895Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-11T06:34:44.6726+00:00.

Observation 44580e0a-4c38-48e3-904c-3b9e2a6ffbeb · outbound

This paper cites J., 2025, arXiv e-prints.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs J., 2025, arXiv e-prints

Reference 62

Resolution: verified exact; arxiv_id, observed 2026-06-25T20:08:19.021080Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-11T06:34:44.6726+00:00.

Observation 9327f2ed-cb5b-45ab-b789-16821cb2d3ca · outbound

This paper cites , keywords =.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs , keywords =

Reference 63

Resolution: verified exact; doi, observed 2026-06-25T20:08:18.965803Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-11T06:34:44.6726+00:00.

Observation a8b8cabe-a131-4706-a954-3673e4dc1564 · outbound

This paper cites J., Carreira, C., Simmonds, C., et al.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs J., Carreira, C., Simmonds, C., et al

Reference 64

Resolution: metadata mismatch; arxiv_id, observed 2026-06-25T20:08:19.023716Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-11T06:34:44.6726+00:00.

Observation 626535a7-e4b4-458f-b72e-649ea904097c · outbound

This paper cites , keywords =.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs , keywords =

Reference 65

Resolution: verified exact; doi, observed 2026-06-25T20:08:18.976195Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-11T06:34:44.6726+00:00.

Observation ac2b53ea-bcc8-419b-9a9b-c584af6e26e4 · outbound

This paper cites , keywords =.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs , keywords =

Reference 66

Resolution: verified exact; doi, observed 2026-06-25T20:08:19.008911Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-11T06:34:44.6726+00:00.

Observation 3ec45679-591e-4908-88d0-28e818a1fc03 · outbound

This paper cites , year = 1971, month = jul, volume =.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs , year = 1971, month = jul, volume =

Reference 67

Resolution: verified exact; doi, observed 2026-06-25T20:08:19.000536Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-11T06:34:44.6726+00:00.

Observation 91701fa2-0275-4294-8bd3-d24ced44caff · outbound

This paper cites , year = 1971, month = jan, volume =.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs , year = 1971, month = jan, volume =

Reference 68

Resolution: verified exact; doi, observed 2026-06-25T20:08:18.991704Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-11T06:34:44.6726+00:00.

Observation ccca8b98-ffca-4299-9a29-cbc161feeb22 · outbound

This paper cites J., Nicholls, D.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs J., Nicholls, D

Reference 69

Resolution: verified exact; doi, observed 2026-06-25T20:08:19.002170Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-11T06:34:44.6726+00:00.

Observation 4a2bc1f9-62e7-4582-b293-08d37cf71f9c · outbound

This paper cites High resolution spectroscopy of the extended narrow-line region of IC 5063 and NGC 7212.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs High resolution spectroscopy of the extended narrow-line region of IC 5063 and NGC 7212

Reference 70

Resolution: verified exact; local_arxiv, observed 2026-06-25T20:08:18.989898Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-11T06:34:44.6726+00:00.

Observation 8d740498-efd3-443d-8126-b94b8eb04cd2 · outbound

This paper cites J., Adams, N.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs J., Adams, N

Reference 71

Resolution: verified exact; doi, observed 2026-06-25T20:08:18.993681Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-11T06:34:44.6726+00:00.

Observation dd62ffc6-7f3d-4a74-bc57-cdb9ea692ae2 · outbound

This paper cites 2023a, ApJ, 956, 139, doi: 10.3847/1538-4357/acf376.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs 2023a, ApJ, 956, 139, doi: 10.3847/1538-4357/acf376

Reference 72

Resolution: verified exact; doi, observed 2026-06-25T20:08:18.950320Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-11T06:34:44.6726+00:00.

Observation f0fbfe7d-2180-420b-a922-b7168b1b67ae · outbound

This paper cites and Shibahashi , H.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs and Shibahashi , H

Reference 74

Resolution: metadata mismatch; arxiv_id, observed 2026-06-25T20:08:19.004602Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-11T06:34:44.6726+00:00.

Observation 584b4968-6004-404a-b789-b76bcc9c10c6 · outbound

This paper cites Physical properties of the emission-line regions.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs Physical properties of the emission-line regions

Reference 75

Resolution: verified exact; doi, observed 2026-06-25T20:08:19.014728Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-11T06:34:44.6726+00:00.

Observation 9449b532-f233-44fc-abde-880e3f23eb44 · outbound

This paper cites , keywords =.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs , keywords =

Reference 76

Resolution: verified exact; doi, observed 2026-06-25T20:08:19.010540Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-11T06:34:44.6726+00:00.

Observation bd2bef3f-6620-4a7c-b36d-68297d0f1e92 · outbound

This paper cites Modelling the Pan-Spectral Energy Distribution of Starburst Galaxies: III. Emission Line Diagnostics of Ensembles of Evolving HII Regions.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs Modelling the Pan-Spectral Energy Distribution of Starburst Galaxies: III. Emission Line Diagnostics of Ensembles of Evolving HII Regions

Reference 77

Resolution: verified exact; local_arxiv, observed 2026-06-25T20:08:18.954576Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-11T06:34:44.6726+00:00.

Observation 6ad271ce-24e2-40a6-9311-ca73ee3cf9f3 · outbound

This paper cites A., et al., 2011, @doi [ ] 10.1111/j.1365-2966.2011.18706.x , http://adsabs.harvard.edu/abs/2011MNRAS.417.1621D 417.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs A., et al., 2011, @doi [ ] 10.1111/j.1365-2966.2011.18706.x , http://adsabs.harvard.edu/abs/2011MNRAS.417.1621D 417

Reference 78

Resolution: metadata mismatch; arxiv_id, observed 2026-06-25T20:08:18.743645Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-11T06:34:44.6726+00:00.

Observation 12321ba3-f9a9-47ec-8ec3-fe2247827387 · outbound

This paper cites , keywords =.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs , keywords =

Reference 79

Resolution: verified exact; doi, observed 2026-06-25T20:08:18.868674Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-11T06:34:44.6726+00:00.

Observation 8313d0f8-2bc7-4443-a375-f6d89f67644c · outbound

This paper cites , keywords =.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs , keywords =

Reference 80

Resolution: verified exact; doi, observed 2026-06-25T20:08:18.818366Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-11T06:34:44.6726+00:00.

Observation c732b2ac-7c7a-41e9-93a2-b145a43bd9af · outbound

This paper cites and Shibahashi , H.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs and Shibahashi , H

Reference 81

Resolution: metadata mismatch; arxiv_id, observed 2026-06-25T20:08:18.831324Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-11T06:34:44.6726+00:00.

Observation 3f6a1058-ab6d-4869-a781-35769bbb5646 · outbound

This paper cites A., et al., 2011, @doi [ ] 10.1111/j.1365-2966.2011.18706.x , http://adsabs.harvard.edu/abs/2011MNRAS.417.1621D 417.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs A., et al., 2011, @doi [ ] 10.1111/j.1365-2966.2011.18706.x , http://adsabs.harvard.edu/abs/2011MNRAS.417.1621D 417

Reference 82

Resolution: metadata mismatch; arxiv_id, observed 2026-06-25T20:08:18.902111Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-11T06:34:44.6726+00:00.

Observation 2d59b132-2fb8-4ffc-ac1e-ed5e0840dcca · outbound

This paper cites The $L - \sigma$ relation for massive bursts of star formation.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs The $L - \sigma$ relation for massive bursts of star formation

Reference 83

Resolution: verified exact; local_arxiv, observed 2026-06-25T20:08:18.824774Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-11T06:34:44.6726+00:00.

Observation af42c3cb-b53a-4cde-bb49-e95da384fa80 · outbound

This paper cites A., okas E.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs A., okas E

Reference 84

Resolution: metadata mismatch; arxiv_id, observed 2026-06-25T20:08:18.750917Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-11T06:34:44.6726+00:00.

Observation 5e2617a6-8e79-4810-968a-a53823076019 · outbound

This paper cites an unresolved cited work.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs Unresolved cited work

Reference 85

Resolution: verified exact; doi, observed 2026-06-25T20:08:18.825993Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-11T06:34:44.6726+00:00.

Observation 63fab8c6-91ef-49c0-861a-df5c9a93cae3 · outbound

This paper cites Helium abundance estimates.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs Helium abundance estimates

Reference 86

Resolution: verified exact; doi, observed 2026-06-25T20:08:18.709279Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-11T06:34:44.6726+00:00.

Observation ba10a50f-4cec-4b19-b1ef-8382ba36e366 · outbound

This paper cites Mignone and Jonathan C.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs Mignone and Jonathan C

Reference 87

Resolution: metadata mismatch; arxiv_id, observed 2026-06-25T20:08:18.882531Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-11T06:34:44.6726+00:00.

Observation 668e3489-7736-43d9-80dd-cdfaf7268f38 · outbound

This paper cites NGC 300 and 1365.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs NGC 300 and 1365

Reference 88

Resolution: verified exact; doi, observed 2026-06-25T20:08:18.832681Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-11T06:34:44.6726+00:00.

Observation a6857dc9-ed52-40e6-95ea-b97596cbda2c · outbound

This paper cites keywords =.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs keywords =

Reference 89

Resolution: verified exact; doi, observed 2026-06-25T20:08:18.740836Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-11T06:34:44.6726+00:00.

Observation d8675513-1ac4-4fec-9075-e813653978ec · outbound

This paper cites an unresolved cited work.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs Unresolved cited work

Reference 90

Resolution: verified exact; doi, observed 2026-06-25T20:08:18.879922Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-11T06:34:44.6726+00:00.

Observation 801e00e9-ea69-4bbe-b15e-6900fbaa796a · outbound

This paper cites , keywords =.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs , keywords =

Reference 91

Resolution: verified exact; doi, observed 2026-06-25T20:08:18.863447Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-11T06:34:44.6726+00:00.

Observation 54578b01-d7cb-4c18-95a3-c95e4132bca8 · outbound

This paper cites , keywords =.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs , keywords =

Reference 92

Resolution: verified exact; doi, observed 2026-06-25T20:08:18.802944Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-11T06:34:44.6726+00:00.

Observation c053fd3e-b1d7-4665-a09e-34c03cbe300e · outbound

This paper cites Carbon abundance dependence.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs Carbon abundance dependence

Reference 93

Resolution: verified exact; doi, observed 2026-06-25T20:08:18.904500Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-11T06:34:44.6726+00:00.

Observation 4bbd2100-c149-426a-8382-4240a00e0e8a · outbound

This paper cites Silicon depletion in damped Ly α systems.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs Silicon depletion in damped Ly α systems

Reference 94

Resolution: verified exact; doi, observed 2026-06-25T20:08:18.715255Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-11T06:34:44.6726+00:00.

Observation 6db36f5d-baa9-4ba6-8988-229f332c2616 · outbound

This paper cites The Abundances of Nitrogen and Oxygen in Damped Lyman Alpha Systems.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs The Abundances of Nitrogen and Oxygen in Damped Lyman Alpha Systems

Reference 95

Resolution: verified exact; local_arxiv, observed 2026-06-25T20:08:18.880440Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-11T06:34:44.6726+00:00.

Observation daa71d9b-d0e8-4560-ae7c-5fad780e3bf8 · outbound

This paper cites Dust-depletion sequences in damped Lyman-{\alpha} absorbers: a unified picture from low-metallicity systems to the Galaxy.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs Dust-depletion sequences in damped Lyman-{\alpha} absorbers: a unified picture from low-metallicity systems to the Galaxy

Reference 96

Resolution: verified exact; local_arxiv, observed 2026-06-25T20:08:18.755977Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-11T06:34:44.6726+00:00.

Observation 4601d254-a0b5-4af7-a441-46ae92e25b18 · outbound

This paper cites , year = 1976, month = nov, volume =.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs , year = 1976, month = nov, volume =

Reference 97

Resolution: verified exact; doi, observed 2026-06-25T20:08:18.835226Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-11T06:34:44.6726+00:00.

Observation d89a3c86-7f90-4cdd-8815-a59d06304b93 · outbound

This paper cites , keywords =.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs , keywords =

Reference 98

Resolution: verified exact; doi, observed 2026-06-25T20:08:18.866696Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-11T06:34:44.6726+00:00.

Observation 81851f46-3fe1-43c3-844a-73ff7f2b5b69 · outbound

This paper cites W., Stark, D.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs W., Stark, D

Reference 99

Resolution: verified exact; doi, observed 2026-06-25T20:08:18.767751Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-11T06:34:44.6726+00:00.

Observation d6759eb5-aa17-4b6e-ab4e-625bc6b9cbb6 · outbound

This paper cites , keywords =.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs , keywords =

Reference 100

Resolution: verified exact; doi, observed 2026-06-25T20:08:18.897425Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-11T06:34:44.6726+00:00.

Observation a09d042e-4891-4d67-b721-2ee3e9493f8f · outbound

This paper cites , keywords =.

Cosmic evolution of the helium and oxygen abundances in type 2 Active Galactic Nuclei: Helium-loud AGNs , keywords =

Reference 101

Resolution: unresolved; no resolver link, observed 2026-06-25T20:05:16.560546Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

Coverage vector

Reference resolution

Outbound references

Pith citing papers