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Unveiling the First...
Unveiling the First Black Holes With JWST : Multi-wavelength Spectral Predictions
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- Natarajan, Priyamvada (författare)
- Yale Univ, Dept Astron, POB 208101, New Haven, CT 06520 USA.;Yale Univ, Dept Phys, POB 208121, New Haven, CT 06520 USA.;Yale Ctr Astron & Astrophys, POB 208121, New Haven, CT 06520 USA.
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- Pacucci, Fabio (författare)
- Yale Univ, Dept Phys, POB 208121, New Haven, CT 06520 USA.;Scuola Normale Super Pisa, Piazza Cavalieri 7, I-56126 Pisa, Italy.
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- Ferrara, Andrea (författare)
- Scuola Normale Super Pisa, Piazza Cavalieri 7, I-56126 Pisa, Italy.
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- Agarwal, Bhaskar (författare)
- Yale Univ, Dept Astron, POB 208101, New Haven, CT 06520 USA.
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- Ricarte, Angelo (författare)
- Yale Univ, Dept Astron, POB 208101, New Haven, CT 06520 USA.
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- Zackrisson, Erik (författare)
- Uppsala universitet,Observationell astrofysik
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- Cappelluti, Nico (författare)
- Yale Univ, Dept Phys, POB 208121, New Haven, CT 06520 USA.;Yale Ctr Astron & Astrophys, POB 208121, New Haven, CT 06520 USA.
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Yale Univ, Dept Astron, POB 208101, New Haven, CT 06520 USA;Yale Univ, Dept Phys, POB 208121, New Haven, CT 06520 USA.;Yale Ctr Astron & Astrophys, POB 208121, New Haven, CT 06520 USA. Yale Univ, Dept Phys, POB 208121, New Haven, CT 06520 USA.;Scuola Normale Super Pisa, Piazza Cavalieri 7, I-56126 Pisa, Italy. (creator_code:org_t)
- 2017-03-31
- 2017
- Engelska.
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Ingår i: Astrophysical Journal. - : American Astronomical Society. - 0004-637X .- 1538-4357. ; 838:2
- Relaterad länk:
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http://arxiv.org/pdf...
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https://urn.kb.se/re...
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https://doi.org/10.3...
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Abstract
Ämnesord
Stäng
- Growing supermassive black holes (similar to 10(9) M-circle dot) that power luminous z > 6 quasars from light seeds-the remnants of the first stars-within a Gyr of the Big Bang poses a timing challenge. The formation of massive black hole seeds via direct collapse with initial masses similar to 10(4)-10(5) M-circle dot alleviates this problem. Viable direct-collapse black hole formation sites, the satellite halos of star-forming galaxies, merge and acquire stars to produce a new, transient class of high-redshift objects, obese black hole galaxies (OBGs). The accretion luminosity outshines that of the stars in OBGs. We predict the multi-wavelength energy output of OBGs and growing Pop III remnants at z = 9 for standard and slim disk accretion, as well as high and low metallicities of the associated stellar population. We derive robust selection criteria for OBGs-a pre-selection to eliminate blue sources, followed by color-color cuts ([F-090W-F-220W]> 0; -0.3<[F-200W-F-444W]< 0.3) and the ratio of X-ray flux to rest-frame optical flux (F-X/F-444W >> 1). Our cuts sift out OBGs from other bright, high-and low-redshift contaminants in the infrared. OBGs with predicted M-AB < 25 are unambiguously detectable by the Mid-Infrared Instrument (MIRI), on the upcoming James Webb Space Telescope (JWST). For parameters explored here, growing Pop III remnants with predicted M-AB < 30 will likely be undetectable by JWST. We demonstrate that JWST has the power to discriminate between initial seeding mechanisms.
Ämnesord
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
Nyckelord
- cosmology: observations
- dark ages
- reionization
- first stars
- early universe
- galaxies: photometry
- quasars: supermassive black holes
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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