| Téléchargement | - Voir la version finale : A search for high-redshift direct-collapse black hole candidates in the PEARLS north ecliptic pole field (PDF, 2.0 Mio)
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| DOI | Trouver le DOI : https://doi.org/10.1051/0004-6361/202347724 |
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| Auteur | Rechercher : Nabizadeh, ArminIdentifiant ORCID : https://orcid.org/0000-0002-2967-5402; Rechercher : Zackrisson, Erik; Rechercher : Pacucci, Fabio; Rechercher : Peter Maksym, Walter; Rechercher : Li, Weihui; Rechercher : Civano, Francesca; Rechercher : Cohen, Seth H.; Rechercher : D’Silva, Jordan C. J.; Rechercher : Koekemoer, Anton M.Identifiant ORCID : https://orcid.org/0000-0002-6610-2048; Rechercher : Summers, Jake; Rechercher : Windhorst, Rogier A.; Rechercher : Adams, Nathan; Rechercher : Conselice, Christopher J.; Rechercher : Coe, Dan; Rechercher : Driver, Simon P.Identifiant ORCID : https://orcid.org/0000-0001-9491-7327; Rechercher : Frye, Brenda; Rechercher : Grogin, Norman A.Identifiant ORCID : https://orcid.org/0000-0001-9440-8872; Rechercher : Jansen, Rolf A.Identifiant ORCID : https://orcid.org/0000-0003-1268-5230; Rechercher : Marshall, Madeline A.1Identifiant ORCID : https://orcid.org/0000-0001-6434-7845; Rechercher : Nonino, Mario; Rechercher : Pirzkal, Nor; Rechercher : Robotham, Aaron; Rechercher : Rutkowski, Michael J.Identifiant ORCID : https://orcid.org/0000-0001-7016-5220; Rechercher : Ryan, Russell E.; Rechercher : Tompkins, Scott; Rechercher : Willmer, Christopher N. A.; Rechercher : Yan, Haojing; Rechercher : Diego, Jose M.; Rechercher : Cheng, Cheng; Rechercher : Finkelstein, Steven L.; Rechercher : Willner, Steven P.; Rechercher : Wang, Lifan; Rechercher : Zitrin, Adi; Rechercher : Smith, Brent M.; Rechercher : Bhatawdekar, RachanaIdentifiant ORCID : https://orcid.org/0000-0003-0883-2226; Rechercher : Gim, Hansung B. |
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| Affiliation | - Conseil national de recherches Canada. Herzberg en astronomie et en astrophysique
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| Bailleur de fonds | Rechercher : Olle Engkvists Stiftelse; Rechercher : Swedish Research Council; Rechercher : Swedish National Space Agency; Rechercher : National Aeronautics and Space Administration; Rechercher : Smithsonian Astrophysical Observatory; Rechercher : John Templeton Foundation; Rechercher : Gordon and Betty Moore Foundation; Rechercher : National Aeronautics and Space Administration; Rechercher : Goddard Space Flight Center; Rechercher : European Research Council; Rechercher : National Research Council Canada; Rechercher : Australian Research Council Centre of Excellence for All Sky Astrophysics in 3 Dimensions |
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| Format | Texte, Article |
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| Sujet | stars: black holes; stars: Population II; stars: Population III; quasars: supermassive black holes; early Universe; infrared: general |
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| Résumé | Direct-collapse black holes (DCBHs) of mass ~10⁴–10⁵ M⊙ that form in HI-cooling halos in the early Universe are promising progenitors of the ≥10⁹ M⊙ supermassive black holes that fuel observed z ≥ 7 quasars. Efficient accretion of the surrounding gas onto such DCBH seeds may render them sufficiently bright for detection with the JWST up to z ≈ 20. Additionally, the very steep and red spectral slope predicted across the ≈1–5 μm wavelength range of the JWST/NIRSpec instrument during their initial growth phase should make them photometrically identifiable up to very high redshifts. In this work, we present a search for such DCBH candidates across the 34 arcmin² in the first two spokes of the JWST cycle-1 PEARLS survey of the north ecliptic pole time-domain field covering eight NIRCam filters down to a maximum depth of ≈29 AB mag. We identify two objects with spectral energy distributions consistent with theoretical DCBH models. However, we also note that even with data in eight NIRCam filters, objects of this type remain degenerate with dusty galaxies and obscured active galactic nuclei over a wide range of redshifts. Follow-up spectroscopy would be required to pin down the nature of these objects. Based on our sample of DCBH candidates and assumptions on the typical duration of the DCBH steep-slope state, we set a conservative upper limit of <5 × 10⁻⁴ comoving Mpc⁻³ (cMpc⁻³) on the comoving density of host halos capable of hosting DCBHs with spectral energy distributions similar to the theoretical models at z ≈ 6–14. |
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| Date de publication | 2024-03-06 |
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| Maison d’édition | EDP Sciences |
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| Licence | |
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| Dans | |
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| Langue | anglais |
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| Publications évaluées par des pairs | Oui |
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| Identificateur | aa47724-23 |
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| Exporter la notice | Exporter en format RIS |
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| Signaler une correction | Signaler une correction (s'ouvre dans un nouvel onglet) |
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| Identificateur de l’enregistrement | 34307389-3664-4ec5-a5ce-c8fac7c7d97d |
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| Enregistrement créé | 2024-09-05 |
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| Enregistrement modifié | 2025-11-03 |
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