Status: Bibliographieeintrag
Standort: ---
Exemplare:
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| Online-Ressource |
Verfasst von: | Agarwal, Bhaskar [VerfasserIn]  |
| Pellegrini, Eric William [VerfasserIn]  |
| Klessen, Ralf S. [VerfasserIn]  |
Titel: | Metallicity evolution of direct collapse black hole hosts |
Titelzusatz: | CR7 as a case study |
Verf.angabe: | Bhaskar Agarwal, Jarrett L. Johnson, Sadegh Khochfar, Eric Pellegrini, Claes-Erik Rydberg, Ralf S. Klessen and Pascal Oesch |
E-Jahr: | 2017 |
Jahr: | 2017 March 30 |
Umfang: | 6 S. |
Fussnoten: | Gesehen am 14.12.2018 |
Titel Quelle: | Enthalten in: Royal Astronomical SocietyMonthly notices of the Royal Astronomical Society |
Ort Quelle: | Oxford : Oxford Univ. Press, 1827 |
Jahr Quelle: | 2017 |
Band/Heft Quelle: | 469(2017), 1, Seite 231-236 |
ISSN Quelle: | 1365-2966 |
Abstract: | In this study, we focus on the z ∼ 6.6 Lyman α CR7 consisting of clump A, which is host to a potential direct collapse black hole (DCBH), and two metal-enriched star-forming clumps B and C. In contrast to claims that signatures of metals rule out the existence of DCBHs, we show that metal pollution of A from star-forming clumps B and C is inevitable, and that A can form a DCBH well before its metallicity exceeds the critical threshold of $$10^{-5}\text{--}10^{-6}\ \rm Z_{{\odot }}$$. Assuming that metal mixing happens instantaneously, we derive the metallicity of A based on the star formation history of B and C. We find that treating a final accreting BH of 106-107 M⊙ in A for nebular emission already pushes its H160 − [3.6] and [3.6] − [4.5] colours into the 3σ limit of observations. Hence, we show that the presence of metals in DCBH hosts is inevitable, and that it is the coevolution of the Lyman-Werner radiation field and metals originating from neighbouring galaxies that governs DCBH formation in neighbouring initially pristine atomic cooling haloes. |
DOI: | doi:10.1093/mnras/stx794 |
URL: | Bitte beachten Sie: Dies ist ein Bibliographieeintrag. Ein Volltextzugriff für Mitglieder der Universität besteht hier nur, falls für die entsprechende Zeitschrift/den entsprechenden Sammelband ein Abonnement besteht oder es sich um einen OpenAccess-Titel handelt.
kostenfrei: Volltext: http://dx.doi.org/10.1093/mnras/stx794 |
| kostenfrei: Volltext: https://academic.oup.com/mnras/article/469/1/231/3096002 |
| DOI: https://doi.org/10.1093/mnras/stx794 |
Datenträger: | Online-Ressource |
Sprache: | eng |
K10plus-PPN: | 157211150X |
Verknüpfungen: | → Zeitschrift |
Metallicity evolution of direct collapse black hole hosts / Agarwal, Bhaskar [VerfasserIn]; 2017 March 30 (Online-Ressource)
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