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arxiv: 2606.11939 · v1 · pith:JSKXXPUVnew · submitted 2026-06-10 · 🌌 astro-ph.HE · astro-ph.GA

Detection of a parsec-scale, compact, and fading ejecta from an accreting massive black hole

Chao Li , Ning Chang , Jun Yang , Lang Cui , Luis C. Ho This is my paper

Pith reviewed 2026-06-27 08:54 UTC · model grok-4.3

classification 🌌 astro-ph.HE astro-ph.GA
keywords dwarf galaxiesintermediate-mass black holesradio ejectaVLBIaccretionfading sourcesjet activity
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The pith

A compact radio source near the center of a dwarf galaxy emerged after 2015, showed a steep spectrum, and faded over the following years.

A machine-rendered reading of the paper's core claim, the machinery that carries it, and where it could break.

The paper presents VLBI observations at 4.9 GHz that detect a milliarcsecond-scale compact radio component close to the optical centroid of the dwarf galaxy SDSS J101747.09+393207.7. This component was not present in earlier radio surveys but appeared around 2015, displays an optically thin steep spectrum, and has declining flux densities from 2019 to 2025. The authors conclude that it represents a short-lived ejecta launched by unstable accretion onto an intermediate-mass black hole, which is likely to fade away within decades. This finding points to the possibility of episodic jet activity in accreting black holes within dwarf galaxies.

Core claim

VLBI observations detect a parsec-scale compact radio component near the optical center of a dwarf galaxy that was absent before 2015. The source exhibits a steep radio spectrum and has shown declining flux across multiple frequencies from 2019 to 2025. It is identified as a fading ejecta produced by unstable accretion onto a massive black hole.

What carries the argument

The VLBI-detected milliarcsecond-scale compact radio component, identified through its position, recent appearance, spectral properties, and flux decline as a short-lived ejecta from black hole accretion.

Load-bearing premise

The detected radio component is physically connected to the galaxy's central black hole and is an ejecta from accretion rather than an unrelated background object or different emission process.

What would settle it

If high-resolution imaging shows the radio position is significantly offset from the optical centroid or if the flux stops declining and remains constant, the ejecta interpretation would be challenged.

Figures

Figures reproduced from arXiv: 2606.11939 by Chao Li, Jun Yang, Lang Cui, Luis C. Ho, Ning Chang.

Figure 1
Figure 1. Figure 1: Near-infrared and EVN observed images of J1017. [PITH_FULL_IMAGE:figures/full_fig_p002_1.png] view at source ↗
Figure 2
Figure 2. Figure 2: Radio spectra of J1017 from nonsimultaneous obser [PITH_FULL_IMAGE:figures/full_fig_p003_2.png] view at source ↗
read the original abstract

Dwarf galaxies, characterized by their low luminosities and masses, are excellent candidates for searches for intermediate-mass black holes (IMBHs), particularly when they show strong accretion and ejection activity. The dwarf galaxy SDSS J101747.09+393207.7 has recently been found to display a very high X-ray luminosity and an X-shaped optical structure, possibly caused by a dwarf--dwarf merger. To explore its potential IMBH ejection activity, we performed very long baseline interferometry (VLBI) observations at 4.9 GHz. In this work, we present the detection of a milliarcsecond-scale, compact, sub-microjansky radio component near the optical centroid. According to some existing radio sky survey data, the radio component was not detected until 2015; it displayed an optically thin steep radio spectrum and declining flux densities across 0.8--5 GHz from 2019 to 2025. Therefore, we identify it as a short-lived and rarely seen ejecta that was produced by unstable accretion onto a massive black hole and likely faded away in a few decades. These results indicate that short-lived, episodic jet activity from accreting IMBHs in dwarf galaxies might exist.

Editorial analysis

A structured set of objections, weighed in public.

Desk editor's note, referee report, simulated authors' rebuttal, and a circularity audit. Tearing a paper down is the easy half of reading it; the pith above is the substance, this is the friction.

Referee Report

3 major / 1 minor

Summary. The manuscript reports a VLBI detection at 4.9 GHz of a compact milliarcsecond-scale radio component near the optical centroid of dwarf galaxy SDSS J101747.09+393207.7. The source was undetected in pre-2015 radio surveys, shows an optically thin steep spectrum, and exhibits declining flux densities from 2019 to 2025; the authors interpret it as a short-lived fading ejecta launched by unstable accretion onto an IMBH, implying episodic jet activity in such systems.

Significance. If the positional association with the optical centroid and the ejecta interpretation are robust, the result would provide rare observational evidence for short-lived, episodic jet activity from accreting IMBHs in dwarf galaxies. The multi-frequency and multi-epoch data offer a concrete example that could be tested with continued monitoring, strengthening the case for transient accretion/ejection in low-mass black holes.

major comments (3)
  1. [Abstract] Abstract: the radio component is described only as 'near the optical centroid' with no reported angular offset in mas, combined 1-sigma astrometric uncertainties, or chance-alignment probability; this quantification is required to establish physical association rather than a background source.
  2. [Abstract] Abstract: non-detection 'until 2015' is stated without survey names, frequencies, or flux-density upper limits, so the absence cannot be converted into a quantitative constraint on prior activity or the claimed few-decade fading timescale.
  3. [Abstract] Abstract: the steep spectrum and flux decline are presented as diagnostic of an ejecta, but no explicit exclusion of alternatives (e.g., background AGN, supernova remnant, or unrelated transient) with quantitative tests is given; the central claim that the source was 'produced by unstable accretion onto a massive black hole' therefore rests on untested assumptions.
minor comments (1)
  1. [Abstract] Abstract: the phrase 'some existing radio sky survey data' should name the specific surveys and their relevant sensitivities to allow readers to assess the non-detection claim.

Simulated Author's Rebuttal

3 responses · 0 unresolved

We thank the referee for the constructive comments on the abstract. We have revised the manuscript to incorporate the requested quantitative details and to make the discussion of alternative interpretations more explicit.

read point-by-point responses

  1. Referee: [Abstract] Abstract: the radio component is described only as 'near the optical centroid' with no reported angular offset in mas, combined 1-sigma astrometric uncertainties, or chance-alignment probability; this quantification is required to establish physical association rather than a background source.

    Authors: We agree that these quantities belong in the abstract. The body of the manuscript reports the VLBI and optical positions; we have updated the abstract to state the measured angular offset, the combined 1-sigma astrometric uncertainty, and the chance-alignment probability calculated from the surface density of microJy radio sources. revision: yes

  2. Referee: [Abstract] Abstract: non-detection 'until 2015' is stated without survey names, frequencies, or flux-density upper limits, so the absence cannot be converted into a quantitative constraint on prior activity or the claimed few-decade fading timescale.

    Authors: We accept that naming the surveys and limits improves clarity. We have revised the abstract to identify the specific radio surveys, their frequencies, and the flux-density upper limits that establish the non-detection prior to 2015, thereby quantifying the onset and fading timescale. revision: yes

  3. Referee: [Abstract] Abstract: the steep spectrum and flux decline are presented as diagnostic of an ejecta, but no explicit exclusion of alternatives (e.g., background AGN, supernova remnant, or unrelated transient) with quantitative tests is given; the central claim that the source was 'produced by unstable accretion onto a massive black hole' therefore rests on untested assumptions.

    Authors: The positional coincidence, transient behavior, steep spectrum, and rapid fading already disfavor a steady background AGN. We nevertheless agree that explicit quantitative tests strengthen the paper. We have added to the abstract and expanded in the discussion section estimates of background source density, comparison of the observed properties and timescale to supernova remnants, and arguments against an unrelated transient, while retaining the IMBH-ejecta interpretation as the most consistent explanation. revision: yes

Circularity Check

0 steps flagged

No circularity: purely observational detection and interpretation with no derivations or self-referential reductions.

full rationale

The paper reports VLBI detection of a compact radio source, its non-detection in prior surveys, spectral index, and flux decline, then interprets it as a fading ejecta from IMBH accretion. No equations, fitted parameters, predictions, or derivations are present. The central claim rests on direct positional and temporal data rather than any reduction to inputs by construction, self-citation chains, or ansatzes. This matches the default expectation for an observational report; the association with the optical centroid is an interpretive step but does not involve the enumerated circularity patterns.

Axiom & Free-Parameter Ledger

0 free parameters · 2 axioms · 0 invented entities

Observational detection paper with no free parameters, no new postulated entities, and reliance on standard domain assumptions about radio jet emission and source association.

axioms (2)
  • domain assumption The detected radio source is physically associated with the optical centroid of the dwarf galaxy
    Positional coincidence is used to link the component to the galaxy's central black hole.
  • domain assumption Steep spectrum and declining flux indicate optically thin synchrotron emission from a fading ejecta
    Standard astrophysical classification invoked to identify the component as short-lived ejecta.

pith-pipeline@v0.9.1-grok · 5764 in / 1443 out tokens · 24141 ms · 2026-06-27T08:54:13.769307+00:00 · methodology

discussion (0)

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Reference graph

Works this paper leans on

72 extracted references · 70 canonical work pages · 22 internal anchors

  1. [1]

    , keywords =

    A small and vigorous black hole in the early Universe. , keywords =. doi:10.1038/s41586-024-07052-5 , archivePrefix =. 2305.12492 , primaryClass =

    work page doi:10.1038/s41586-024-07052-5

  2. [2]

    , keywords =

    A dormant overmassive black hole in the early Universe. , keywords =. doi:10.1038/s41586-024-08210-5 , archivePrefix =. 2403.03872 , primaryClass =

    work page doi:10.1038/s41586-024-08210-5

  3. [3]

    , keywords =

    JWST Reveals a Possible z 11 Galaxy Merger in Triply Lensed MACS0647 JD. , keywords =. doi:10.3847/2041-8213/acc94b , archivePrefix =. 2210.14123 , primaryClass =

    work page doi:10.3847/2041-8213/acc94b 2041

  4. [4]

    , keywords =

    Low-mass Galaxy Interactions Trigger Black Hole Activity. , keywords =. doi:10.3847/2041-8213/ad5345 , archivePrefix =. 2405.18685 , primaryClass =

    work page doi:10.3847/2041-8213/ad5345 2041

  5. [5]

    Intermediate-Mass Black Holes

    Intermediate-Mass Black Holes. , keywords =. doi:10.1146/annurev-astro-032620-021835 , archivePrefix =. 1911.09678 , primaryClass =

    work page internal anchor Pith review Pith/arXiv arXiv doi:10.1146/annurev-astro-032620-021835 1911

  6. [6]

    Nature Astronomy , keywords =

    Hunting for massive black holes in dwarf galaxies. Nature Astronomy , keywords =. doi:10.1038/s41550-021-01556-0 , archivePrefix =. 2201.10569 , primaryClass =

    work page doi:10.1038/s41550-021-01556-0

  7. [7]

    , keywords =

    Tripling the Census of Dwarf AGN Candidates Using DESI Early Data. , keywords =. doi:10.3847/1538-4357/adb1dd , archivePrefix =. 2411.00091 , primaryClass =

    work page doi:10.3847/1538-4357/adb1dd

  8. [8]

    , keywords =

    O Corona, where art thou? eROSITA's view of UV-optical-IR variability-selected massive black holes in low-mass galaxies. , keywords =. doi:10.1051/0004-6361/202347531 , archivePrefix =. 2311.16220 , primaryClass =

    work page doi:10.1051/0004-6361/202347531

  9. [9]

    Active Dwarf Galaxy Database. I. Overlap between Active Galactic Nuclei Selected by Different Techniques. , keywords =. doi:10.3847/1538-4357/ad5442 , archivePrefix =. 2405.20312 , primaryClass =

    work page doi:10.3847/1538-4357/ad5442

  10. [10]

    arXiv e-prints , keywords =

    Star-Forming Nuclear Clusters in Dwarf Galaxies Mimicking AGN Signatures in the Mid-Infrared. arXiv e-prints , keywords =. doi:10.48550/arXiv.2501.09791 , archivePrefix =. 2501.09791 , primaryClass =

    work page doi:10.48550/arxiv.2501.09791

  11. [11]

    , keywords =

    Intermediate-mass black holes: finding of episodic, large-scale, and powerful jet activity in a dwarf galaxy. , keywords =. doi:10.1093/mnras/stad493 , archivePrefix =. 2302.06214 , primaryClass =

    work page doi:10.1093/mnras/stad493

  12. [12]

    The SFXC software correlator for Very Long Baseline Interferometry: Algorithms and Implementation

    The SFXC software correlator for very long baseline interferometry: algorithms and implementation. Experimental Astronomy , keywords =. doi:10.1007/s10686-015-9446-1 , archivePrefix =. 1502.00467 , primaryClass =

    work page internal anchor Pith review Pith/arXiv arXiv doi:10.1007/s10686-015-9446-1

  13. [13]

    Information Handling in Astronomy - Historical Vistas , year = 2003, editor =

    AIPS, the VLA, and the VLBA. Information Handling in Astronomy - Historical Vistas , year = 2003, editor =. doi:10.1007/0-306-48080-8_7 , adsurl =

    work page doi:10.1007/0-306-48080-8_7 2003

  14. [14]

    Bulletin of the American Astronomical Society , year = 1994, volume =

    DIFMAP: an interactive program for synthesis imaging. Bulletin of the American Astronomical Society , year = 1994, volume =

    1994

  15. [15]

    , keywords =

    A Luminous X-Ray Active Galactic Nucleus in the Dwarf Dwarf Galaxy Merger RGG 66. , keywords =. doi:10.3847/1538-4357/ad712d , archivePrefix =. 2409.10630 , primaryClass =

    work page doi:10.3847/1538-4357/ad712d

  16. [16]

    Strong radio sources in bright spiral galaxies. II. Rapid star formation and galaxy-galaxy interactions. , keywords =. doi:10.1086/159538 , adsurl =

    work page doi:10.1086/159538

  17. [17]

    Summary of the content and survey properties

    Gaia Data Release 3. Summary of the content and survey properties. , keywords =. doi:10.1051/0004-6361/202243940 , archivePrefix =. 2208.00211 , primaryClass =

    work page doi:10.1051/0004-6361/202243940

  18. [18]

    Dwarf Galaxies with Optical Signatures of Active Massive Black Holes

    Dwarf Galaxies with Optical Signatures of Active Massive Black Holes. , keywords =. doi:10.1088/0004-637X/775/2/116 , archivePrefix =. 1308.0328 , primaryClass =

    work page internal anchor Pith review Pith/arXiv arXiv doi:10.1088/0004-637x/775/2/116

  19. [19]

    , keywords =

    Dwarf Galaxies with Radio-excess Active Galactic Nuclei in the Very Large Array Sky Survey. , keywords =. doi:10.3847/1538-4357/ad9584 , adsurl =

    work page doi:10.3847/1538-4357/ad9584

  20. [20]

    The LOFAR Two-metre Sky Survey. V. Second data release. , keywords =. doi:10.1051/0004-6361/202142484 , archivePrefix =. 2202.11733 , primaryClass =

    work page doi:10.1051/0004-6361/202142484

  21. [21]

    , keywords =

    The Rapid ASKAP Continuum Survey I: Design and first results. , keywords =. doi:10.1017/pasa.2020.41 , archivePrefix =. 2012.00747 , primaryClass =

    work page doi:10.1017/pasa.2020.41 2020

  22. [22]

    Publications of the Astronomical Society of Australia , author =

    The Rapid ASKAP Continuum Survey Paper II: First Stokes I Source Catalogue Data Release. , keywords =. doi:10.1017/pasa.2021.47 , archivePrefix =. 2109.00956 , primaryClass =

    work page doi:10.1017/pasa.2021.47 2021

  23. [23]

    , keywords =

    The Rapid ASKAP Continuum Survey (RACS) VI: The RACS-high 1655.5 MHz images and catalogue. , keywords =. doi:10.1017/pasa.2025.2 , archivePrefix =. 2501.04978 , primaryClass =

    work page doi:10.1017/pasa.2025.2 2025

  24. [24]

    Jansky Very Large Array Sky Survey (VLASS)

    The Karl G. Jansky Very Large Array Sky Survey (VLASS). Science Case and Survey Design. , keywords =. doi:10.1088/1538-3873/ab63eb , archivePrefix =. 1907.01981 , primaryClass =

    work page doi:10.1088/1538-3873/ab63eb 1907

  25. [25]

    2008 , Bdsk-Url-1 =

    On the origin of radio emission in radio-quiet quasars. , keywords =. doi:10.1111/j.1365-2966.2008.13806.x , archivePrefix =. 0808.0637 , primaryClass =

    work page doi:10.1111/j.1365-2966.2008.13806.x 2008

  26. [26]

    , keywords =

    A Fundamental Plane of black hole activity. , keywords =. doi:10.1046/j.1365-2966.2003.07017.x , archivePrefix =. astro-ph/0305261 , primaryClass =

    work page doi:10.1046/j.1365-2966.2003.07017.x 2003

  27. [27]

    , keywords =

    Intermediate-mass black holes and the Fundamental Plane of black hole accretion. , keywords =. doi:10.1093/mnras/stac2608 , archivePrefix =. 2209.09890 , primaryClass =

    work page doi:10.1093/mnras/stac2608

  28. [28]

    , keywords =

    Radio Observations of Four Active Galactic Nuclei Hosting Intermediate-mass Black Hole Candidates: Studying the Outflow Activity and Evolution. , keywords =. doi:10.3847/1538-4357/ac9e9d , archivePrefix =. 2211.00050 , primaryClass =

    work page doi:10.3847/1538-4357/ac9e9d

  29. [29]

    15-GHz radio emission from nearby low-luminosity active galactic nuclei

    15-GHz radio emission from nearby low-luminosity active galactic nuclei. , keywords =. doi:10.1051/0004-6361/201833233 , archivePrefix =. 1805.06696 , primaryClass =

    work page internal anchor Pith review Pith/arXiv arXiv doi:10.1051/0004-6361/201833233

  30. [30]

    , keywords =

    Is there a sub-parsec-scale jet base in the nearby dwarf galaxy NGC 4395?. , keywords =. doi:10.1093/mnras/stac1753 , archivePrefix =. 2206.10964 , primaryClass =

    work page doi:10.1093/mnras/stac1753

  31. [31]

    The Intermediate Mass Black Hole Candidate in the Center of NGC 404: New Evidence from Radio Continuum Observations

    The Intermediate-mass Black Hole Candidate in the Center of NGC 404: New Evidence from Radio Continuum Observations. , keywords =. doi:10.1088/0004-637X/753/2/103 , archivePrefix =. 1204.3089 , primaryClass =

    work page internal anchor Pith review Pith/arXiv arXiv doi:10.1088/0004-637x/753/2/103

  32. [32]

    Probing the Active Massive Black Hole Candidate in the Center of NGC 404 with VLBI

    Probing the Active Massive Black Hole Candidate in the Center of NGC 404 with VLBI. , keywords =. doi:10.1088/0004-637X/791/1/2 , archivePrefix =. 1406.4752 , primaryClass =

    work page internal anchor Pith review Pith/arXiv arXiv doi:10.1088/0004-637x/791/1/2

  33. [33]

    J., Cotton W

    The NRAO VLA Sky Survey. , keywords =. doi:10.1086/300337 , adsurl =

    work page doi:10.1086/300337

  34. [34]

    H., White R

    The FIRST Survey: Faint Images of the Radio Sky at Twenty Centimeters. , keywords =. doi:10.1086/176166 , adsurl =

    work page doi:10.1086/176166

  35. [35]

    , keywords =

    First Detection of Radio Emission from the Intermediate-mass Black Hole in POX 52: Deep Multiband Observations with ATCA and VLA. , keywords =. doi:10.3847/1538-4357/ada946 , archivePrefix =. 2412.03316 , primaryClass =

    work page doi:10.3847/1538-4357/ada946

  36. [36]

    A Scheme to Unify Low-Power Accreting Black Holes - Jet-Dominated Accretion Flows and the Radio/X-Ray Correlation

    A scheme to unify low-power accreting black holes. Jet-dominated accretion flows and the radio/X-ray correlation. , keywords =. doi:10.1051/0004-6361:20031683 , archivePrefix =. astro-ph/0305335 , primaryClass =

    work page internal anchor Pith review Pith/arXiv arXiv doi:10.1051/0004-6361:20031683

  37. [37]

    The M-sigma and M-L Relations in Galactic Bulges and Determinations of their Intrinsic Scatter

    The M- and M-L Relations in Galactic Bulges, and Determinations of Their Intrinsic Scatter. , keywords =. doi:10.1088/0004-637X/698/1/198 , archivePrefix =. 0903.4897 , primaryClass =

    work page internal anchor Pith review Pith/arXiv arXiv doi:10.1088/0004-637x/698/1/198

  38. [38]

    and Rice, W

    Radio emission as a test of the existence of intermediate-mass black holes in globular clusters and dwarf spheroidal galaxies. , keywords =. doi:10.1111/j.1365-2966.2004.07859.x , archivePrefix =. astro-ph/0403530 , primaryClass =

    work page doi:10.1111/j.1365-2966.2004.07859.x 2004

  39. [39]

    , keywords =

    The Diverse Morphologies and Structures of Dwarf Galaxies Hosting Optically Selected Active Massive Black Holes. , keywords =. doi:10.3847/1538-4357/abec40 , archivePrefix =. 2103.06289 , primaryClass =

    work page doi:10.3847/1538-4357/abec40

  40. [40]

    Calibrating Extinction-Free Star Formation Rate Diagnostics with 33GHz Free-Free Emission in NGC6946

    Calibrating Extinction-free Star Formation Rate Diagnostics with 33 GHz Free-free Emission in NGC 6946. , keywords =. doi:10.1088/0004-637X/737/2/67 , archivePrefix =. 1105.4877 , primaryClass =

    work page internal anchor Pith review Pith/arXiv arXiv doi:10.1088/0004-637x/737/2/67

  41. [41]

    The Gaia mission

    The Gaia mission. , keywords =. doi:10.1051/0004-6361/201629272 , archivePrefix =. 1609.04153 , primaryClass =

    work page internal anchor Pith review Pith/arXiv arXiv doi:10.1051/0004-6361/201629272

  42. [42]

    , keywords =

    Radio Emission from Supernovae and Gamma-Ray Bursters. , keywords =. doi:10.1146/annurev.astro.40.060401.093744 , adsurl =

    work page doi:10.1146/annurev.astro.40.060401.093744

  43. [43]

    A survey for transients and variables with the Murchison Widefield Array 32-tile prototype at 154 MHz

    A survey for transients and variables with the Murchison Widefield Array 32-tile prototype at 154 MHz. , keywords =. doi:10.1093/mnras/stt2200 , archivePrefix =. 1311.2989 , primaryClass =

    work page internal anchor Pith review Pith/arXiv arXiv doi:10.1093/mnras/stt2200

  44. [44]

    , keywords =

    The Rapid ASKAP Continuum Survey IV: continuum imaging at 1367.5 MHz and the first data release of RACS-mid. , keywords =. doi:10.1017/pasa.2023.31 , archivePrefix =. 2306.07194 , primaryClass =

    work page doi:10.1017/pasa.2023.31 2023

  45. [45]

    , keywords =

    The Rapid ASKAP Continuum Survey V: Cataloguing the sky at 1 367.5 MHz and the second data release of RACS-mid. , keywords =. doi:10.1017/pasa.2023.60 , archivePrefix =. 2311.12369 , primaryClass =

    work page doi:10.1017/pasa.2023.60 2023

  46. [46]

    , keywords =

    Radio Scrutiny of the X-Ray-weak Tail of Low-mass Active Galactic Nuclei: A Novel Signature of High-Eddington Accretion?. , keywords =. doi:10.3847/1538-4357/ad67d1 , archivePrefix =. 2404.02423 , primaryClass =

    work page doi:10.3847/1538-4357/ad67d1

  47. [47]

    , keywords =

    Compact steep-spectrum and peaked-spectrum radio sources. , keywords =. doi:10.1007/s00159-021-00131-w , archivePrefix =. 2009.02750 , primaryClass =

    work page doi:10.1007/s00159-021-00131-w 2009

  48. [48]

    , keywords =

    Formation and destruction of jets in X-ray binaries. , keywords =. doi:10.1051/0004-6361/201117052 , adsurl =

    work page doi:10.1051/0004-6361/201117052

  49. [49]

    title Supermassive Black Holes in X-Rays: From Standard Accretion to Extreme Transients

    Supermassive Black Holes in X-Rays: From Standard Accretion to Extreme Transients. , keywords =. doi:10.1146/annurev-astro-071221-052844 , archivePrefix =. 2503.22791 , primaryClass =

    work page doi:10.1146/annurev-astro-071221-052844

  50. [50]

    The powerful jet of an off-nuclear intermediate-mass black hole in the spiral galaxy NGC 2276

    The powerful jet of an off-nuclear intermediate-mass black hole in the spiral galaxy NGC 2276. , keywords =. doi:10.1093/mnras/stv143 , archivePrefix =. 1501.04897 , primaryClass =

    work page internal anchor Pith review Pith/arXiv arXiv doi:10.1093/mnras/stv143

  51. [51]

    , keywords =

    The Nature of the IMBH Candidate CXO J133815.6+043255: High-frequency Radio Emission. , keywords =. doi:10.3847/1538-4357/acf4f8 , archivePrefix =. 2309.00051 , primaryClass =

    work page doi:10.3847/1538-4357/acf4f8

  52. [52]

    , keywords =

    Compact jets dominate the continuum emission in low-luminosity active galactic nuclei. , keywords =. doi:10.1051/0004-6361/202243547 , archivePrefix =. 2211.09828 , primaryClass =

    work page doi:10.1051/0004-6361/202243547

  53. [53]

    , keywords =

    A compact core-jet structure in the changing-look Seyfert NGC 2617. , keywords =. doi:10.1093/mnras/stab706 , archivePrefix =. 2103.04309 , primaryClass =

    work page doi:10.1093/mnras/stab706

  54. [54]

    2007 , Bdsk-Url-1 =

    A unified model for AGN feedback in cosmological simulations of structure formation. , keywords =. doi:10.1111/j.1365-2966.2007.12153.x , archivePrefix =. 0705.2238 , primaryClass =

    work page doi:10.1111/j.1365-2966.2007.12153.x 2007

  55. [55]

    The X-ray and Radio Connection in Low-luminosity Active Nuclei

    The X-ray and radio connection in low-luminosity active nuclei. , keywords =. doi:10.1051/0004-6361:20066943 , archivePrefix =. astro-ph/0701546 , primaryClass =

    work page internal anchor Pith review Pith/arXiv arXiv doi:10.1051/0004-6361:20066943

  56. [56]

    Chandra Snapshot Observations of Low-Luminosity AGNs with a Compact Radio Source

    Chandra Snapshot Observations of Low-Luminosity Active Galactic Nuclei with a Compact Radio Source. , keywords =. doi:10.1086/345339 , archivePrefix =. astro-ph/0209607 , primaryClass =

    work page internal anchor Pith review Pith/arXiv arXiv doi:10.1086/345339

  57. [57]

    The astrometric core solution for the Gaia mission. Overview of models, algorithms and software implementation

    The astrometric core solution for the Gaia mission. Overview of models, algorithms, and software implementation. , keywords =. doi:10.1051/0004-6361/201117905 , archivePrefix =. 1112.4139 , primaryClass =

    work page internal anchor Pith review Pith/arXiv arXiv doi:10.1051/0004-6361/201117905

  58. [58]

    , keywords =

    Varstrometry for Off-nucleus and Dual Subkiloparsec AGN (VODKA): Methodology and Initial Results with Gaia DR2. , keywords =. doi:10.3847/1538-4357/ab5c1a , archivePrefix =. 1908.02292 , primaryClass =

    work page doi:10.3847/1538-4357/ab5c1a 1908

  59. [59]

    Multiwavelength Monitoring of the Dwarf Seyfert 1 Galaxy NGC 4395. I. A Reverberation-based Measurement of the Black Hole Mass. , keywords =. doi:10.1086/444494 , archivePrefix =. astro-ph/0506665 , primaryClass =

    work page internal anchor Pith review Pith/arXiv arXiv doi:10.1086/444494

  60. [60]

    A 10,000-solar-mass black hole in the nucleus of a bulgeless dwarf galaxy

    A 10,000-solar-mass black hole in the nucleus of a bulgeless dwarf galaxy. Nature Astronomy , keywords =. doi:10.1038/s41550-019-0790-3 , archivePrefix =. 1905.00145 , primaryClass =

    work page internal anchor Pith review Pith/arXiv arXiv doi:10.1038/s41550-019-0790-3 1905

  61. [61]

    The Intermediate-Mass Black Hole Reverberation Mapping Project: Stable Optical Continuum Lags of an IMBH in the Dwarf Galaxy NGC 4395 Over Years

    The Intermediate-Mass Black Hole Reverberation Mapping Project: Stable Optical Continuum Lags of an IMBH in the Dwarf Galaxy NGC 4395 Over Years. arXiv e-prints , keywords =. doi:10.48550/arXiv.2601.14787 , archivePrefix =. 2601.14787 , primaryClass =

    work page internal anchor Pith review Pith/arXiv arXiv doi:10.48550/arxiv.2601.14787

  62. [62]

    Observational appearance

    Black holes in binary systems. Observational appearance. , year = 1973, month = jan, volume =

    1973

  63. [63]

    Radiatively Inefficient Accretion in Nearby Galaxies

    Radiatively Inefficient Accretion in Nearby Galaxies. , keywords =. doi:10.1088/0004-637X/699/1/626 , archivePrefix =. 0906.4104 , primaryClass =

    work page internal anchor Pith review Pith/arXiv arXiv doi:10.1088/0004-637x/699/1/626

  64. [64]

    , keywords =

    Radio Activity of Supermassive Black Holes with Extremely High Accretion Rates. , keywords =. doi:10.3847/1538-4357/abb775 , archivePrefix =. 2007.11327 , primaryClass =

    work page doi:10.3847/1538-4357/abb775 2007

  65. [65]

    , keywords =

    Radio spectra of narrow-line Seyfert 1 galaxies observed with Australia Telescope Compact Array and Very Large Array Sky Survey. , keywords =. doi:10.1093/mnras/stac530 , archivePrefix =. 2202.11065 , primaryClass =

    work page doi:10.1093/mnras/stac530

  66. [66]

    emcee: The MCMC Hammer

    emcee: The MCMC Hammer. , keywords =. doi:10.1086/670067 , archivePrefix =. 1202.3665 , primaryClass =

    work page internal anchor Pith review Pith/arXiv arXiv doi:10.1086/670067

  67. [67]

    , year = 1966, month = sep, volume =

    A Model for Variable Extragalactic Radio Sources. , year = 1966, month = sep, volume =. doi:10.1038/2111131a0 , adsurl =

    work page doi:10.1038/2111131a0 1966

  68. [68]

    arXiv e-prints , keywords =

    A Critical Evaluation of the Physical Nature of the Little Red Dots. arXiv e-prints , keywords =. doi:10.48550/arXiv.2512.03130 , archivePrefix =. 2512.03130 , primaryClass =

    work page doi:10.48550/arxiv.2512.03130

  69. [69]

    Radio Emission on Sub-Parsec Scales from the Intermediate-Mass Black Hole in NGC 4395

    Radio Emission on Subparsec Scales from the Intermediate-Mass Black Hole in NGC 4395. , keywords =. doi:10.1086/507102 , archivePrefix =. astro-ph/0606600 , primaryClass =

    work page internal anchor Pith review Pith/arXiv arXiv doi:10.1086/507102

  70. [70]

    LOFAR: The LOw-Frequency ARray

    LOFAR: The LOw-Frequency ARray. , keywords =. doi:10.1051/0004-6361/201220873 , archivePrefix =. 1305.3550 , primaryClass =

    work page internal anchor Pith review Pith/arXiv arXiv doi:10.1051/0004-6361/201220873

  71. [71]

    and Rice, W

    Towards a unified model for black hole X-ray binary jets. , keywords =. doi:10.1111/j.1365-2966.2004.08384.x , archivePrefix =. astro-ph/0409360 , primaryClass =

    work page doi:10.1111/j.1365-2966.2004.08384.x 2004

  72. [72]

    , keywords =

    A New Sample of (Wandering) Massive Black Holes in Dwarf Galaxies from High-resolution Radio Observations. , keywords =. doi:10.3847/1538-4357/ab4999 , archivePrefix =. 1909.04670 , primaryClass =

    work page doi:10.3847/1538-4357/ab4999 1909