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19 Pith papers cite this work, alongside 1,437 external citations. Polarity classification is still indexing.

19 Pith papers citing it
1,437 external citations · Pith
abstract

We present photometric redshifts for an uniquely large and deep sample of 522286 objects with i'_{AB}<25 in the Canada-France Legacy Survey ``Deep Survey'' fields, which cover a total effective area of 3.2 deg^2. We use 3241 spectroscopic redshifts with 0<z<5 from the VIMOS VLT Deep Survey as a calibration to derive these photometric redshifts. We devise a robust calibration method which removes systematic trends in the photometric redshifts and significantly reduces the fraction of catastrophic errors. We use our unique spectroscopic sample to present a detailed assessment of the robustness of the photometric redshift sample. For a sample selected at i'_{AB}<24, we reach a redshift accuracy of \sigma_{\Delta z/(1+z)}=0.037 with \eta=3.7% of catastrophic error. The reliability of our photometric redshifts is lower for fainter objects: we find \sigma_{\Delta z/(1+z)}=0.029, 0.043 and \eta=1.7%, 5.4% for samples selected at i'_{AB}=17.5-22.5 and 22.5-24 respectively. We find that the photometric redshifts of starburst galaxies in our sample are less reliable: although these galaxies represent only 18% of the spectroscopic sample they are responsible for 54% of the catastrophic errors. We find an excellent agreement between the photometric and the VVDS spectroscopic redshift distributions at i'_{AB}<24. Finally, we compare the redshift distributions of i' selected galaxies on the four CFHTLS deep fields, showing that cosmic variance is already present on fields of 0.8 deg^2.

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Empirical estimates of how massive galaxies can be in {\Lambda}CDM

astro-ph.GA · 2026-05-08 · conditional · novelty 6.0 · 2 refs

Corrected empirical limits show the most massive galaxies never exceed the theoretical baryonic maximum of 0.16 times halo virial mass, keeping observations consistent with LambdaCDM at all redshifts.

The NIRISS PASSAGE Spectroscopic Redshift Catalog in COSMOS

astro-ph.GA · 2026-01-05 · accept · novelty 5.0

PASSAGE releases 2183 spectroscopic redshifts (0.08<z<4.7) from JWST NIRISS observations in COSMOS, with strong agreement to photometric redshifts for multi-line sources and a quantified ~18% misidentification rate for single-line emitters.

Identification of Compact Groups of Galaxies in IllustrisTNG300

astro-ph.GA · 2026-05-08 · unverdicted · novelty 4.0

Compact galaxy groups identified in TNG300 show that ~80% of velocity-selected groups are line-of-sight interlopers, with a stellar-mass versus velocity-dispersion scaling relation serving as an effective diagnostic.

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