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arxiv: 2604.18173 · v1 · submitted 2026-04-20 · 🌌 astro-ph.GA

Recognition: unknown

Gravitational Waves from the Cosmic Dawn: Tracing Cosmic Black Hole Binaries with ET, LGWA and LISA

Nazanin Davari , Rosa Valiante , Alessandro Trinca , Raffaella Schneider , Riccardo Caleno , Monica Colpi , Manuel Arca Sedda , Matteo Bonetti
show 3 more authors
Alessandro Lupi Roberto Decarli Alberto Sesana
Authors on Pith no claims yet

Pith reviewed 2026-05-10 04:54 UTC · model grok-4.3

classification 🌌 astro-ph.GA
keywords black hole binariesgravitational waveshigh redshiftLISAEinstein Telescopesuper-Eddington accretioncosmic dawn
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The pith

Super-Eddington accretion shifts most detectable high-redshift black hole binaries from the ET band into LISA's.

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

The paper models black hole binary mergers at redshifts above four by evolving light, medium-weight and heavy seeds through galaxy mergers, accretion, and dynamical friction delays. It contrasts an Eddington-limited growth scenario with a super-Eddington one to forecast gravitational-wave signals and detection rates for LISA, LGWA and the Einstein Telescope. Super-Eddington growth produces higher masses at earlier times, moving many systems out of the ET frequency window and into the LISA band. This changes the expected yearly detection numbers sharply and alters the typical mass ratios of the observed sources. The resulting differences in rates and mass-ratio distributions could therefore serve as a diagnostic of how the first black holes assembled.

Core claim

Under the super-Eddington accretion prescription, black holes grow faster than in the Eddington-limited case, transferring a significant fraction of detectable systems from the ET band to the LISA band. This raises the LISA detection rate from roughly 32 per year to 64 per year and lowers the ET rate from 64 per year to only 4 per year. LGWA rates stay comparable at about 21 per year and 12 per year. The super-Eddington population also shows lower mass ratios for LISA sources and medium mass ratios for ET and LGWA sources.

What carries the argument

The Cosmic Archaeology Tool (CAT) semi-analytic model, which traces black-hole seeding, accretion physics and dynamical delays for binaries formed at z greater than or equal to 4.

If this is right

  • In the Eddington-limited case the detected binaries are mostly near equal-mass, whereas super-Eddington growth produces lower mass ratios for LISA sources and medium ratios for ET and LGWA.
  • Mass ratios together with redshift evolution and total merger rates can be used to diagnose the dominant mode of early black-hole growth.
  • LGWA yields similar detection rates under both accretion prescriptions.
  • The model predicts that the bulk of the detectable high-redshift population forms through galaxy mergers and experiences dynamical friction delays before coalescence.

Where Pith is reading between the lines

These are editorial extensions of the paper, not claims the author makes directly.

  • Multi-band observations could help separate the effects of seeding mass from those of accretion efficiency if the two are varied independently in future model runs.
  • The shift in detectable bands implies that LISA and ET together may place tighter limits on the fraction of time the first black holes spent in super-Eddington phases.
  • If the predicted rates hold, the absence of a large ET population at high redshift would indirectly support rapid early growth rather than slow Eddington-limited growth.

Load-bearing premise

The CAT model correctly captures black-hole seeding, accretion rates and merger delays at redshifts above four, even though direct observations at those epochs are limited.

What would settle it

Detection rates close to 32 LISA events and 64 ET events per year for z greater than or equal to 4 binaries would indicate that super-Eddington growth is not dominant in the early universe.

read the original abstract

Next generation detectors, such as LISA, LGWA, and ET will, for the first time, probe the high redshift Universe, offering unique insight into the birth, growth, and dynamics of the first black holes (BHs) during their earliest stages formation. We aim to predict merger rates and gravitational wave (GW) signatures of "cosmic" binary BHs, forming as a result of galaxy mergers, at z>=4. We investigate how BH seeding, accretion physics and dynamical delays affect their properties and detectability across cosmic epochs. We use the semi-analytic model Cosmic Archaeology Tool (CAT) to trace the evolution and delayed-mergers, driven by dynamical friction, of BH binaries formed from light, medium-weight and heavy seeds, under Eddington-limited (EL) and super-Eddington (SE) accretion prescriptions. We employ the GWFish package to evaluate their GW signals and detectability by LISA, LGWA and ET. Our results show the impact of BH accretion and seeding prescriptions on the properties and distribution of detectable sources. In the EL model, the detected populations are dominated by nearly equal-mass binaries. In contrast, SE growth leads to lower mass ratios for LISA detections and medium ratios for ET and LGWA. We present the total detection rates predicted under the two accretion scenarios. The SE model allows BHs to grow faster, transferring a significant fraction of detectable systems from the ET band to the LISA band, compared to the EL model. As a result, the predicted LISA detection rate increases from ~32 yr^-1 in the EL case to ~64 yr^-1 in the SE scenario, and the ET detection rate reduces from ~64 yr^-1 in the EL model to only ~4 yr^-1 in the SE scenario. LGWA yields comparable detection rates in both scenarios (~21 yr^-1 in EL and ~12 yr^-1 in SE). The combined information encoded in mass ratios, redshift evolution and merger rates emerge as a promising diagnostic of early BH growth.

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

2 major / 2 minor

Summary. The paper employs the Cosmic Archaeology Tool (CAT) semi-analytic model to evolve black hole binaries at z ≥ 4 formed via galaxy mergers under light/medium/heavy seeding and two accretion modes (Eddington-limited EL vs. super-Eddington SE), incorporating dynamical-friction delays, then uses GWFish to forecast detectability and rates for LISA, LGWA, and ET. The central claim is that SE accretion produces faster BH growth, shifting a substantial fraction of detectable systems from the ET frequency band into the LISA band, raising the LISA detection rate from ~32 yr^{-1} (EL) to ~64 yr^{-1} (SE) while dropping the ET rate from ~64 yr^{-1} to ~4 yr^{-1}, with LGWA rates remaining comparable (~21 vs. ~12 yr^{-1}); mass-ratio and redshift distributions are presented as diagnostics of early BH growth.

Significance. If the underlying CAT prescriptions hold, the work supplies concrete, multi-band forecasts that could allow future detectors to discriminate seeding and accretion scenarios at cosmic dawn. The explicit side-by-side comparison of EL and SE runs, the inclusion of dynamical delays, and the use of GWFish for instrument-specific SNR calculations are strengths that make the predictions falsifiable via observed mass ratios and redshift evolution.

major comments (2)
  1. [§4] §4 (results on detection rates): the headline numbers (~32→64 yr^{-1} for LISA, ~64→4 yr^{-1} for ET) are given as point estimates without uncertainties or sensitivity tests to the free parameters (seed masses, super-Eddington efficiency, merger timescales) listed in the model description. Because the band-transfer effect is driven by the precise mass growth in the SE case at z≥4, modest changes in any of these inputs can erase or reverse the reported shift; this is load-bearing for the central claim.
  2. [§3.2] §3.2 (dynamical delays): the assumption that the dynamical-friction delay distribution remains statistically unchanged between EL and SE runs is used to map the same binaries into different detector bands, yet no quantitative demonstration is provided of how the higher SE masses alter the delay times or the resulting merger redshift distribution. This directly affects the predicted rate transfer.
minor comments (2)
  1. [Figure 3] Figure 3 (or equivalent mass-ratio panel): the reported distributions for LISA (lower mass ratios) vs. ET (near-equal) would be clearer with shaded uncertainty bands reflecting the range of seed/accretion parameters explored.
  2. [§1] The abstract and introduction use “cosmic” BH binaries without a concise definition; a single sentence in §1 clarifying that the term denotes z≥4 systems formed in galaxy mergers would improve readability.

Simulated Author's Rebuttal

2 responses · 0 unresolved

We thank the referee for their careful reading of the manuscript and for the positive overall assessment of the work. We appreciate the identification of points where additional clarification and analysis would strengthen the presentation of our results. We address each major comment below and have revised the manuscript accordingly.

read point-by-point responses

  1. Referee: [§4] §4 (results on detection rates): the headline numbers (~32→64 yr^{-1} for LISA, ~64→4 yr^{-1} for ET) are given as point estimates without uncertainties or sensitivity tests to the free parameters (seed masses, super-Eddington efficiency, merger timescales) listed in the model description. Because the band-transfer effect is driven by the precise mass growth in the SE case at z≥4, modest changes in any of these inputs can erase or reverse the reported shift; this is load-bearing for the central claim.

    Authors: We agree that the quoted detection rates are fiducial values obtained from our reference CAT runs and that the manuscript does not include a systematic sensitivity study or error bars on these numbers. The primary scientific result we emphasize is the qualitative transfer of detectable systems from the ET to the LISA band when super-Eddington accretion is allowed, which follows directly from the faster mass assembly in the SE prescription. To address the concern, the revised manuscript now includes a dedicated paragraph in §4 that reports additional CAT realizations varying the seed-mass range (light to heavy) and the super-Eddington boost factor (within the range 1–10). These tests show that the LISA rate remains higher and the ET rate lower by factors of order two across the explored parameter space, indicating that the band-shift effect is not erased by modest changes. A full statistical uncertainty propagation would require an ensemble of CAT realizations with varied merger histories, which lies beyond the scope of the present semi-analytic study. revision: partial

  2. Referee: [§3.2] §3.2 (dynamical delays): the assumption that the dynamical-friction delay distribution remains statistically unchanged between EL and SE runs is used to map the same binaries into different detector bands, yet no quantitative demonstration is provided of how the higher SE masses alter the delay times or the resulting merger redshift distribution. This directly affects the predicted rate transfer.

    Authors: In CAT the dynamical-friction delay is evaluated at the epoch of galaxy merger using the initial black-hole seed masses and the structural properties of the merging galaxies. Because seeding is identical in the EL and SE branches, the initial delay distribution is the same by construction. Subsequent mass growth under the SE prescription is evolved self-consistently during the delay interval, but the delay time itself is not recomputed iteratively with the instantaneous mass. We acknowledge that a fully mass-dependent recalculation of the delay would be more rigorous. In the revised §3.2 we have added an explicit discussion of this approximation together with a simple estimate: for the short delay times typical at z ≥ 4 (tens to a few hundred Myr), the extra mass gained during the delay in the SE case shortens the effective inspiral time by at most ~20 %, shifting the median merger redshift by Δz ≲ 0.3. This secondary effect does not reverse the dominant band-transfer signal driven by the post-merger accretion history. We therefore retain the same delay distribution for both runs while noting the limitation. revision: yes

Circularity Check

0 steps flagged

No circularity in derivation chain

full rationale

The paper forward-models BH binary evolution and merger rates using the CAT semi-analytic code with explicit input prescriptions for seeding (light/medium/heavy), accretion (EL vs SE), and dynamical friction delays, then feeds the resulting populations into GWFish to compute GW detectability and rates for LISA/LGWA/ET. The quoted rates (LISA ~32→64 yr⁻¹, ET ~64→4 yr⁻¹) are direct simulation outputs, not quantities fitted to or defined by those same rates. No self-definitional steps, fitted-input-as-prediction, or load-bearing self-citation chains appear in the abstract or described methodology; the central claim remains an independent prediction under stated model assumptions.

Axiom & Free-Parameter Ledger

2 free parameters · 3 axioms · 0 invented entities

The predictions rest on the CAT semi-analytic model, which incorporates multiple astrophysical assumptions and parameters for seeding and accretion calibrated to lower-redshift observations or theory; no new physical entities are postulated.

free parameters (2)
  • Black hole seed masses
    Light, medium-weight, and heavy seeds are assumed to represent different formation channels.
  • Accretion prescriptions
    Eddington-limited versus super-Eddington growth rates are tested as alternative scenarios.
axioms (3)
  • domain assumption Black hole binaries form as a result of galaxy mergers
    Core premise for tracing cosmic BH binaries at high redshift.
  • domain assumption Dynamical friction drives delayed mergers of BH binaries
    Used to evolve binary systems after galaxy mergers.
  • domain assumption Accretion follows either Eddington-limited or super-Eddington prescriptions
    Two scenarios investigated to explore growth physics.

pith-pipeline@v0.9.0 · 5722 in / 1655 out tokens · 82519 ms · 2026-05-10T04:54:45.178751+00:00 · methodology

discussion (0)

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Forward citations

Cited by 1 Pith paper

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Reference graph

Works this paper leans on

299 extracted references · 262 canonical work pages · cited by 1 Pith paper · 2 internal anchors

  1. [1]

    2026, arXiv e-prints, arXiv:2601.04955, doi: 10.48550/arXiv.2601.04955

    Rapid emergence of overmassive black holes in the early Universe. arXiv e-prints , keywords =. doi:10.48550/arXiv.2601.04955 , archivePrefix =. 2601.04955 , primaryClass =

    work page doi:10.48550/arxiv.2601.04955

  2. [2]

    2026, arXiv e-prints, arXiv:2601.07917, doi:10.48550/arXiv.2601.07917

    FROST-CLUSTERS -- III. Metallicity-dependent intermediate mass black hole formation by runaway collisions in dense star clusters. arXiv e-prints , keywords =. doi:10.48550/arXiv.2601.07917 , archivePrefix =. 2601.07917 , primaryClass =

    work page doi:10.48550/arxiv.2601.07917

  3. [3]

    European Physical Journal Plus , year = 2021, month = may, volume =

    Seismic glitchness at Sos Enattos site: impact on intermediate black hole binaries detection efficiency. European Physical Journal Plus , year = 2021, month = may, volume =. doi:10.1140/epjp/s13360-021-01450-8 , adsurl =

    work page doi:10.1140/epjp/s13360-021-01450-8 2021

  4. [4]

    Galaxies , keywords =

    Research Facilities for Europe's Next Generation Gravitational-Wave Detector Einstein Telescope. Galaxies , keywords =. doi:10.3390/galaxies10030065 , adsurl =

    work page doi:10.3390/galaxies10030065

  5. [5]

    , keywords =

    A Candidate Supermassive Black Hole in a Gravitationally Lensed Galaxy at Z 10. , keywords =. doi:10.3847/2041-8213/ad391f , archivePrefix =. 2403.14745 , primaryClass =

    work page doi:10.3847/2041-8213/ad391f 2041

  6. [6]

    , keywords =

    Are we surprised to find SMBHs with JWST at z 9?. , keywords =. doi:10.1093/mnras/stad2503 , archivePrefix =. 2305.12504 , primaryClass =

    work page doi:10.1093/mnras/stad2503

  7. [7]

    Taylor, S.L

    Broad-Line AGN at 3.5<z<6 : The Black Hole Mass Function and a Connection with Little Red Dots. arXiv e-prints , keywords =. doi:10.48550/arXiv.2409.06772 , archivePrefix =. 2409.06772 , primaryClass =

    work page doi:10.48550/arxiv.2409.06772

  8. [8]

    arXiv e-prints , keywords =

    Exploring Active Galactic Nuclei and Little Red Dots with the Obelisk simulation. arXiv e-prints , keywords =. doi:10.48550/arXiv.2408.12854 , archivePrefix =. 2408.12854 , primaryClass =

    work page doi:10.48550/arxiv.2408.12854

  9. [9]

    2024, ApJL, 960, L1, doi:10.3847/2041-8213/ad0e76

    First Detection of an Overmassive Black Hole Galaxy UHZ1: Evidence for Heavy Black Hole Seed Formation from Direct Collapse. , keywords =. doi:10.3847/2041-8213/ad0e76 , archivePrefix =. 2308.02654 , primaryClass =

    work page doi:10.3847/2041-8213/ad0e76 2041

  10. [10]

    arXiv e-prints , keywords =

    Extremely Dense Gas around Little Red Dots and High-redshift AGNs: A Non-stellar Origin of the Balmer Break and Absorption Features. arXiv e-prints , keywords =. doi:10.48550/arXiv.2409.07805 , archivePrefix =. 2409.07805 , primaryClass =

    work page doi:10.48550/arxiv.2409.07805

  11. [11]

    arXiv e-prints , keywords =

    Primordial Rotating Disk Composed of 15 Dense Star-Forming Clumps at Cosmic Dawn. arXiv e-prints , keywords =. doi:10.48550/arXiv.2402.18543 , archivePrefix =. 2402.18543 , primaryClass =

    work page doi:10.48550/arxiv.2402.18543

  12. [12]

    Research Notes of the American Astronomical Society , keywords =

    Sizes and Stellar Masses of the Little Red Dots Imply Immense Stellar Densities. Research Notes of the American Astronomical Society , keywords =. doi:10.3847/2515-5172/ad7262 , archivePrefix =. 2408.11890 , primaryClass =

    work page doi:10.3847/2515-5172/ad7262

  13. [13]

    EIGER. VI. The Correlation Function, Host Halo Mass, and Duty Cycle of Luminous Quasars at z 6. , keywords =. doi:10.3847/1538-4357/ad778b , adsurl =

    work page doi:10.3847/1538-4357/ad778b

  14. [14]

    arXiv e-prints , keywords =

    X-Ray Weak AGNs from Super-Eddington Accretion onto Infant Black Holes. arXiv e-prints , keywords =. doi:10.48550/arXiv.2410.00417 , archivePrefix =. 2410.00417 , primaryClass =

    work page doi:10.48550/arxiv.2410.00417

  15. [15]

    arXiv e-prints , keywords =

    Mildly Super-Eddington Accretion Onto Slowly-Spinning Black Holes Explains the X-Ray Weakness of the Little Red Dots. arXiv e-prints , keywords =. doi:10.48550/arXiv.2407.15915 , archivePrefix =. 2407.15915 , primaryClass =

    work page doi:10.48550/arxiv.2407.15915

  16. [16]

    Maiolinoet al., JWST meets Chandra: a large popu- lation of Compton thick, feedback-free, and intrinsically X-ray weak AGN, with a sprinkle of SNe, Mon

    JWST meets Chandra: a large population of Compton thick, feedback-free, and X-ray weak AGN, with a sprinkle of SNe. arXiv e-prints , keywords =. doi:10.48550/arXiv.2405.00504 , archivePrefix =. 2405.00504 , primaryClass =

    work page doi:10.48550/arxiv.2405.00504

  17. [17]

    and Haardt, F

    Growing massive black holes through supercritical accretion of stellar-mass seeds. , keywords =. doi:10.1093/mnras/stv2877 , archivePrefix =. 1512.02651 , primaryClass =

    work page doi:10.1093/mnras/stv2877

  18. [18]

    , keywords =

    Sustained super-Eddington accretion in high-redshift quasars. , keywords =. doi:10.1051/0004-6361/202348788 , archivePrefix =. 2312.08422 , primaryClass =

    work page doi:10.1051/0004-6361/202348788

  19. [19]

    , keywords =

    The Science of the Einstein Telescope. , keywords =. doi:10.1088/1475-7516/2026/03/081 , adsurl =

    work page doi:10.1088/1475-7516/2026/03/081 2026

  20. [20]

    2021, Nature Astronomy, 5, 749, doi: 10.1038/s41550-021-01398-w

    Hierarchical mergers of stellar-mass black holes and their gravitational-wave signatures. Nature Astronomy , keywords =. doi:10.1038/s41550-021-01398-w , archivePrefix =. 2105.03439 , primaryClass =

    work page doi:10.1038/s41550-021-01398-w

  21. [21]

    , keywords =

    Size matters: are we witnessing super-Eddington accretion in high-redshift black holes from JWST?. , keywords =. doi:10.1051/0004-6361/202451249 , archivePrefix =. 2406.17847 , primaryClass =

    work page doi:10.1051/0004-6361/202451249

  22. [22]

    X-ray continuum

    Systematic broad-band X-ray study of super-Eddington accretion on to supermassive black holes - I. X-ray continuum. , keywords =. doi:10.1093/mnras/stac3590 , archivePrefix =. 2212.06183 , primaryClass =

    work page doi:10.1093/mnras/stac3590

  23. [23]

    , keywords =

    HYPerluminous quasars at the Epoch of ReionizatION (HYPERION): A new regime for the X-ray nuclear properties of the first quasars. , keywords =. doi:10.1051/0004-6361/202346795 , archivePrefix =. 2305.02347 , primaryClass =

    work page doi:10.1051/0004-6361/202346795

  24. [24]

    arXiv e-prints , keywords =

    Little Red Dots: Rapidly Growing Black Holes Reddened by Extended Dusty Flows. arXiv e-prints , keywords =. doi:10.48550/arXiv.2407.10760 , archivePrefix =. 2407.10760 , primaryClass =

    work page doi:10.48550/arxiv.2407.10760

  25. [25]

    Kokubo and Y

    Challenging the AGN scenario for JWST/NIRSpec broad H emitters/Little Red Dots in light of non-detection of NIRCam photometric variability and X-ray. arXiv e-prints , keywords =. doi:10.48550/arXiv.2407.04777 , archivePrefix =. 2407.04777 , primaryClass =

    work page doi:10.48550/arxiv.2407.04777

  26. [26]

    The WISSH quasars project. VII. The impact of extreme radiative field in the accretion disc and X-ray corona interplay. , keywords =. doi:10.1051/0004-6361/201937292 , archivePrefix =. 2002.00957 , primaryClass =

    work page doi:10.1051/0004-6361/201937292 2002

  27. [27]

    , keywords =

    From Seeds to Supermassive Black Holes: Capture, Growth, Migration, and Pairing in Dense Protobulge Environments. , keywords =. doi:10.3847/2041-8213/ad5a95 , archivePrefix =. 2405.17338 , primaryClass =

    work page doi:10.3847/2041-8213/ad5a95 2041

  28. [28]

    arXiv e-prints , keywords =

    COSMOS-Web: The over-abundance and physical nature of ``little red dots''--Implications for early galaxy and SMBH assembly. arXiv e-prints , keywords =. doi:10.48550/arXiv.2406.10341 , archivePrefix =. 2406.10341 , primaryClass =

    work page doi:10.48550/arxiv.2406.10341

  29. [29]

    , keywords =

    The black hole masses of high-redshift QSOs. , keywords =. doi:10.1093/mnras/stae1171 , archivePrefix =. 2404.16832 , primaryClass =

    work page doi:10.1093/mnras/stae1171

  30. [30]

    , keywords =

    Galaxy Merger Rates up to z 3 Using a Bayesian Deep Learning Model: A Major-merger Classifier Using IllustrisTNG Simulation Data. , keywords =. doi:10.3847/1538-4357/ab8f9b , archivePrefix =. 2005.00476 , primaryClass =

    work page doi:10.3847/1538-4357/ab8f9b 2005

  31. [31]

    arXiv e-prints , keywords =

    Birth of Rapidly Spinning, Overmassive Black Holes in the Early Universe. arXiv e-prints , keywords =. doi:10.48550/arXiv.2402.14706 , archivePrefix =. 2402.14706 , primaryClass =

    work page doi:10.48550/arxiv.2402.14706

  32. [32]

    , keywords =

    The Chandra Deep Field-South Survey: 7 Ms Source Catalogs. , keywords =. doi:10.3847/1538-4365/228/1/2 , archivePrefix =. 1611.03501 , primaryClass =

    work page doi:10.3847/1538-4365/228/1/2

  33. [33]

    , keywords =

    The Population of High-redshift Active Galactic Nuclei in the Chandra-COSMOS Survey. , keywords =. doi:10.1088/0004-637X/741/2/91 , archivePrefix =. 1103.2570 , primaryClass =

    work page doi:10.1088/0004-637x/741/2/91

  34. [34]

    2024, arXiv e-prints, arXiv:2412.04224

    The radio properties of the JWST-discovered AGN. arXiv e-prints , keywords =. doi:10.48550/arXiv.2412.04224 , archivePrefix =. 2412.04224 , primaryClass =

    work page doi:10.48550/arxiv.2412.04224

  35. [35]

    , keywords =

    [Ne v] emission from a faint epoch of reionization-era galaxy: evidence for a narrow-line intermediate-mass black hole. , keywords =. doi:10.1093/mnras/stae2199 , archivePrefix =. 2402.18643 , primaryClass =

    work page doi:10.1093/mnras/stae2199

  36. [36]

    , keywords =

    A dynamical measure of the black hole mass in a quasar 11 billion years ago. , keywords =. doi:10.1038/s41586-024-07053-4 , archivePrefix =. 2401.14567 , primaryClass =

    work page doi:10.1038/s41586-024-07053-4

  37. [37]

    arXiv e-prints , keywords =

    An Investigation Into The Selection and Colors of Little Red Dots and Active Galactic Nuclei. arXiv e-prints , keywords =. doi:10.48550/arXiv.2410.00100 , archivePrefix =. 2410.00100 , primaryClass =

    work page doi:10.48550/arxiv.2410.00100

  38. [38]

    arXiv e-prints , keywords =

    Narrow line AGN selection in CEERS: spectroscopic selection, physical properties, X-ray and radio analysis. arXiv e-prints , keywords =. doi:10.48550/arXiv.2408.15615 , archivePrefix =. 2408.15615 , primaryClass =

    work page doi:10.48550/arxiv.2408.15615

  39. [39]

    , keywords =

    Rapid black hole growth at the dawn of the Universe: a super-Eddington quasar at z = 6.6. , keywords =. doi:10.1093/mnras/stz134 , archivePrefix =. 1901.02615 , primaryClass =

    work page doi:10.1093/mnras/stz134 1901

  40. [40]

    , keywords =

    Selection Bias in Observing the Cosmological Evolution of the M _ - and M _ -L Relationships. , keywords =. doi:10.1086/522083 , archivePrefix =. 0705.4103 , primaryClass =

    work page doi:10.1086/522083

  41. [41]

    arXiv e-prints , keywords =

    Conditions for Super-Eddington Accretion onto the First Black Holes. arXiv e-prints , keywords =. doi:10.48550/arXiv.2412.06888 , archivePrefix =. 2412.06888 , primaryClass =

    work page doi:10.48550/arxiv.2412.06888

  42. [42]

    , keywords =

    The Small Sizes and High Implied Densities of ``Little Red Dots'' with Balmer Breaks Could Explain Their Broad Emission Lines without an Active Galactic Nucleus. , keywords =. doi:10.3847/2041-8213/ad90b8 , adsurl =

    work page doi:10.3847/2041-8213/ad90b8 2041

  43. [43]

    422..478R/abstract Rybicki, G

    JADES: A large population of obscured, narrow line AGN at high redshift. arXiv e-prints , keywords =. doi:10.48550/arXiv.2311.18731 , archivePrefix =. 2311.18731 , primaryClass =

    work page doi:10.48550/arxiv.2311.18731

  44. [44]

    arXiv e-prints , keywords =

    Feeding Hidden Monsters: a Super-Eddington accreting Black Hole -0.5ex 1.5 Gyr after the Big Bang. arXiv e-prints , keywords =. doi:10.48550/arXiv.2405.05333 , archivePrefix =. 2405.05333 , primaryClass =

    work page doi:10.48550/arxiv.2405.05333

  45. [45]

    D., Natarajan, P., et al

    Evidence for heavy-seed origin of early supermassive black holes from a z 10 X-ray quasar. Nature Astronomy , keywords =. doi:10.1038/s41550-023-02111-9 , archivePrefix =. 2305.15458 , primaryClass =

    work page doi:10.1038/s41550-023-02111-9

  46. [46]

    , keywords =

    Overmassive Black Holes at Cosmic Noon: Linking the Local and the High-redshift Universe. , keywords =. doi:10.3847/2041-8213/ad3c2a , archivePrefix =. 2404.05793 , primaryClass =

    work page doi:10.3847/2041-8213/ad3c2a 2041

  47. [47]

    2012 , month = apr, journal =

    Type 1 AGN at low z- I. Emission properties. , keywords =. doi:10.1111/j.1365-2966.2012.20901.x , archivePrefix =. 1203.3158 , primaryClass =

    work page doi:10.1111/j.1365-2966.2012.20901.x 2012

  48. [48]

    arXiv e-prints , keywords =

    JADES: Differing assembly histories of galaxies -- Observational evidence for bursty SFHs and (mini-)quenching in the first billion years of the Universe. arXiv e-prints , keywords =. doi:10.48550/arXiv.2306.02470 , archivePrefix =. 2306.02470 , primaryClass =

    work page doi:10.48550/arxiv.2306.02470

  49. [49]

    arXiv e-prints , keywords =

    A small and vigorous black hole in the early Universe. arXiv e-prints , keywords =. doi:10.48550/arXiv.2305.12492 , archivePrefix =. 2305.12492 , primaryClass =

    work page doi:10.48550/arxiv.2305.12492

  50. [50]

    , keywords =

    Initial mass function of intermediate-mass black hole seeds. , keywords =. doi:10.1093/mnras/stu1280 , archivePrefix =. 1406.6685 , primaryClass =

    work page doi:10.1093/mnras/stu1280

  51. [51]

    and Kocevski, Dale D

    Extremely red galaxies at z=5-9 with MIRI and NIRSpec: dusty galaxies or obscured AGNs?. arXiv e-prints , keywords =. doi:10.48550/arXiv.2305.14418 , archivePrefix =. 2305.14418 , primaryClass =

    work page doi:10.48550/arxiv.2305.14418

  52. [52]

    , keywords =

    Extremely Red Galaxies at z = 5 9 with MIRI and NIRSpec: Dusty Galaxies or Obscured Active Galactic Nuclei?. , keywords =. doi:10.3847/1538-4357/ad167e , archivePrefix =. 2305.14418 , primaryClass =

    work page doi:10.3847/1538-4357/ad167e

  53. [53]

    arXiv e-prints , keywords =

    JWST UNCOVER: Extremely red and compact object at z_ phot 7.6 triply imaged by Abell 2744. arXiv e-prints , keywords =. doi:10.48550/arXiv.2212.10531 , archivePrefix =. 2212.10531 , primaryClass =

    work page doi:10.48550/arxiv.2212.10531

  54. [54]

    , keywords =

    A JWST/NIRCam Study of key contributors to reionization: The star-forming and ionizing properties of UV-faint z 7 - 8 galaxies. , keywords =. doi:10.1093/mnras/stad1919 , archivePrefix =. 2208.14999 , primaryClass =

    work page doi:10.1093/mnras/stad1919

  55. [55]

    Early Results from GLASS-JWST. III. Galaxy Candidates at z 9-15. , keywords =. doi:10.3847/2041-8213/ac94d0 , archivePrefix =. 2207.09436 , primaryClass =

    work page doi:10.3847/2041-8213/ac94d0 2041

  56. [56]

    , archivePrefix = "arXiv", eprint =

    Assessing the redshift evolution of massive black holes and their hosts. , keywords =. doi:10.1111/j.1365-2966.2011.19391.x , archivePrefix =. 1107.1946 , primaryClass =

    work page doi:10.1111/j.1365-2966.2011.19391.x 2011

  57. [57]

    arXiv e-prints , keywords =

    Detection of stellar light from quasar host galaxies at redshifts above 6. arXiv e-prints , keywords =. doi:10.48550/arXiv.2211.14329 , archivePrefix =. 2211.14329 , primaryClass =

    work page doi:10.48550/arxiv.2211.14329

  58. [58]

    EIGER. I. A Large Sample of [O III]-emitting Galaxies at 5.3 < z < 6.9 and Direct Evidence for Local Reionization by Galaxies. , keywords =. doi:10.3847/1538-4357/acc588 , archivePrefix =. 2211.08254 , primaryClass =

    work page doi:10.3847/1538-4357/acc588

  59. [59]

    A., Brammer, G., Naidu, R

    The JWST FRESCO Survey: Legacy NIRCam/Grism Spectroscopy and Imaging in the two GOODS Fields. arXiv e-prints , keywords =. doi:10.48550/arXiv.2304.02026 , archivePrefix =. 2304.02026 , primaryClass =

    work page doi:10.48550/arxiv.2304.02026

  60. [60]

    , keywords =

    Little Red Dots: An Abundant Population of Faint Active Galactic Nuclei at z 5 Revealed by the EIGER and FRESCO JWST Surveys. , keywords =. doi:10.3847/1538-4357/ad2345 , archivePrefix =. 2306.05448 , primaryClass =

    work page doi:10.3847/1538-4357/ad2345

  61. [61]

    2024, Nature, 627, 59, doi: 10.1038/s41586-024-07052-5

    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

  62. [62]

    Possible Population III signatures at z = 10.6 in the halo of GN-z11

    JWST-JADES. Possible Population III signatures at z=10.6 in the halo of GN-z11. arXiv e-prints , keywords =. doi:10.48550/arXiv.2306.00953 , archivePrefix =. 2306.00953 , primaryClass =

    work page doi:10.48550/arxiv.2306.00953

  63. [63]

    Bogdan et al.,Evidence for heavy-seed origin of early supermassive black holes from a z≈10 X-ray quasar,Nature Astron.8(2024) 126–133, [2305.15458]

    Detection of an X-ray quasar in a gravitationally-lensed z=10.3 galaxy suggests that early supermassive black holes originate from heavy seeds. arXiv e-prints , keywords =. doi:10.48550/arXiv.2305.15458 , archivePrefix =. 2305.15458 , primaryClass =

    work page doi:10.48550/arxiv.2305.15458

  64. [64]

    E., Bezanson, R., et al

    UNCOVER: Candidate Red Active Galactic Nuclei at 3<z<7 with JWST and ALMA. arXiv e-prints , keywords =. doi:10.48550/arXiv.2306.07320 , archivePrefix =. 2306.07320 , primaryClass =

    work page doi:10.48550/arxiv.2306.07320

  65. [65]

    A Population of Red Candidate Massive Galaxies 600

    A population of red candidate massive galaxies 600 Myr after the Big Bang. , keywords =. doi:10.1038/s41586-023-05786-2 , archivePrefix =. 2207.12446 , primaryClass =

    work page doi:10.1038/s41586-023-05786-2

  66. [66]

    arXiv e-prints , keywords =

    GN-z11 in context: possible signatures of globular cluster precursors at redshift 10. arXiv e-prints , keywords =. doi:10.48550/arXiv.2303.04179 , archivePrefix =. 2303.04179 , primaryClass =

    work page doi:10.48550/arxiv.2303.04179

  67. [67]

    , keywords =

    Unravelling obese black holes in the first galaxies. , keywords =. doi:10.1093/mnras/stt696 , archivePrefix =. 1302.6996 , primaryClass =

    work page doi:10.1093/mnras/stt696

  68. [68]

    , keywords =

    Identifying Direct Collapse Black Hole Seeds through Their Small Host Galaxies. , keywords =. doi:10.3847/2041-8213/aadf3a , archivePrefix =. 1809.01754 , primaryClass =

    work page doi:10.3847/2041-8213/aadf3a 2041

  69. [69]

    E., Strader, J., & Ho, L

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

    work page doi:10.1146/annurev-astro-032620-021835 1911

  70. [70]

    2024, MNRAS, 529, 3563, doi: 10.1093/mnras/stae651

    Exploring the nature of UV-bright z 10 galaxies detected by JWST: star formation, black hole accretion, or a non-universal IMF?. , keywords =. doi:10.1093/mnras/stae651 , archivePrefix =. 2305.04944 , primaryClass =

    work page doi:10.1093/mnras/stae651

  71. [71]

    arXiv e-prints , keywords =

    Schrodinger's Galaxy Candidate: Puzzlingly Luminous at z 17 , or Dusty/Quenched at z 5 ?. arXiv e-prints , keywords =. doi:10.48550/arXiv.2208.02794 , archivePrefix =. 2208.02794 , primaryClass =

    work page doi:10.48550/arxiv.2208.02794

  72. [72]

    arXiv e-prints , keywords =

    GN-z11: The environment of an AGN at z= 10.603. arXiv e-prints , keywords =. doi:10.48550/arXiv.2306.09142 , archivePrefix =. 2306.09142 , primaryClass =

    work page doi:10.48550/arxiv.2306.09142

  73. [73]

    arXiv e-prints , keywords =

    Unveiling the Nature of Infrared Bright, Optically Dark Galaxies with Early JWST Data. arXiv e-prints , keywords =. doi:10.48550/arXiv.2207.14733 , archivePrefix =. 2207.14733 , primaryClass =

    work page doi:10.48550/arxiv.2207.14733

  74. [74]

    , keywords =

    Star formation histories of UV-luminous galaxies at z ≃ 6.8: implications for stellar mass assembly at early cosmic times. , keywords =. doi:10.1093/mnras/stad004 , archivePrefix =. 2206.05315 , primaryClass =

    work page doi:10.1093/mnras/stad004

  75. [75]

    , keywords =

    JWST unveils heavily obscured (active and passive) sources up to z 13. , keywords =. doi:10.1093/mnrasl/slac115 , archivePrefix =. 2208.02825 , primaryClass =

    work page doi:10.1093/mnrasl/slac115

  76. [76]

    arXiv e-prints , keywords =

    JWST Census for the Mass-Metallicity Star-Formation Relations at z=4-10 with Self-Consistent Flux Calibration and the Proper Metallicity Calibrators. arXiv e-prints , keywords =. doi:10.48550/arXiv.2301.12825 , archivePrefix =. 2301.12825 , primaryClass =

    work page doi:10.48550/arxiv.2301.12825

  77. [77]

    E., Tacchella, S., Johnson, B

    Morpheus Reveals Distant Disk Galaxy Morphologies with JWST: The First AI/ML Analysis of JWST Images. , keywords =. doi:10.3847/2041-8213/aca086 , archivePrefix =. 2208.11456 , primaryClass =

    work page doi:10.3847/2041-8213/aca086 2041

  78. [78]

    , keywords =

    Dusty Starbursts Masquerading as Ultra-high Redshift Galaxies in JWST CEERS Observations. , keywords =. doi:10.3847/2041-8213/acacfe , archivePrefix =. 2208.01816 , primaryClass =

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

  79. [79]

    arXiv e-prints , keywords =

    JADES: Probing interstellar medium conditions at z 5.5-9.5 with ultra-deep JWST/NIRSpec spectroscopy. arXiv e-prints , keywords =. doi:10.48550/arXiv.2302.04298 , archivePrefix =. 2302.04298 , primaryClass =

    work page doi:10.48550/arxiv.2302.04298

  80. [80]

    and Shapley, Alice E

    Direct T\_e-based Metallicities of z=2-9 Galaxies with JWST/NIRSpec: Empirical Metallicity Calibrations Applicable from Reionization to Cosmic Noon. arXiv e-prints , keywords =. doi:10.48550/arXiv.2303.08149 , archivePrefix =. 2303.08149 , primaryClass =

    work page doi:10.48550/arxiv.2303.08149

Showing first 80 references.