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FIRSTBHs

The formation of supermassive black holes in the early universe

Total Cost €

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EC-Contrib. €

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Partnership

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Project "FIRSTBHs" data sheet

The following table provides information about the project.

Coordinator
CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE CNRS 

Organization address
address: RUE MICHEL ANGE 3
city: PARIS
postcode: 75794
website: www.cnrs.fr

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country France [FR]
 Project website http://www2.iap.fr/users/latif/
 Total cost 173˙076 €
 EC max contribution 173˙076 € (100%)
 Programme 1. H2020-EU.1.3.2. (Nurturing excellence by means of cross-border and cross-sector mobility)
 Code Call H2020-MSCA-IF-2014
 Funding Scheme MSCA-IF-EF-ST
 Starting year 2015
 Duration (year-month-day) from 2015-10-01   to  2017-09-30

 Partnership

Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE CNRS FR (PARIS) coordinator 173˙076.00

Map

 Project objective

Supermassive black holes (BHs) of more than a billion solar masses have been observed at z > 6 when the Universe was less than a billion years old. Forming such objects is highly challenging, as high accretion rates need to be maintained over very long time scales. Seed BHs with masses of 10^4 -10^6 solar masses, as predicted by the “direct collapse” scenario, provide a promising pathway to explain their presence. During this project, I will derive the mass distribution of the BHs to provide constraints on their masses and growth mechanisms which can tested with upcoming missions such as JWST and ATHENA. To achieve this goal, I will build up a statistical sample of high-resolution adaptive mesh refinement (AMR) simulations of massive primordial halos, following the dynamics of the gas from cosmological scales down to scales comparable to the solar system. The gravitational collapse initially forms a rapidly accreting protostar, which subsequently moves to the main sequence providing ultra-violet (UV) feedback and finally collapses to a massive BH. In the first part of the project, I will compute the impact of stellar feedback from the supermassive star and follow the time evolution of the mass accretion rates. Subsequently, the simulations will be extended by incorporating the X-ray feedback from the BH itself. Finally, scaling relations between the properties of the host halos and BH masses will be derived. This work will provide the first detailed assessment of the mass distribution of seed BHs, and their observational properties. This is a substantial step forward to understand the origin of high-redshift BHs.

 Publications

year authors and title journal last update
List of publications.
2017 Anna T. P. Schauer, Bhaskar Agarwal, Simon C. O. Glover, Ralf S. Klessen, Muhammad A. Latif, Llu?s Mas-Ribas, Claes-Erik Rydberg, Daniel J. Whalen, Erik Zackrisson
Lyman?Werner escape fractions from the first galaxies
published pages: 2288-2300, ISSN: 0035-8711, DOI: 10.1093/mnras/stx264
Monthly Notices of the Royal Astronomical Society 467/2 2019-07-23
2016 M. A. Latif, D. R. G. Schleicher, T. Hartwig
Witnessing the birth of a supermassive protostar
published pages: 233-241, ISSN: 0035-8711, DOI: 10.1093/mnras/stw297
Monthly Notices of the Royal Astronomical Society 458/1 2019-07-23
2016 M. A. Latif, K. Omukai, M. Habouzit, D. R. G. Schleicher, M. Volonteri
IMPACT OF DUST COOLING ON DIRECT-COLLAPSE BLACK HOLE FORMATION
published pages: 40, ISSN: 1538-4357, DOI: 10.3847/0004-637X/823/1/40
The Astrophysical Journal 823/1 2019-07-23
2017 Sunmyon Chon, Muhammad A. Latif
The impact of ionizing radiation on the formation of a supermassive star in the early Universe
published pages: 4293-4303, ISSN: 0035-8711, DOI: 10.1093/mnras/stx348
Monthly Notices of the Royal Astronomical Society 467/4 2019-07-23
2016 Mélanie Habouzit, Marta Volonteri, Muhammad Latif, Yohan Dubois, Sébastien Peirani
On the number density of ‘direct collapse’ black hole seeds
published pages: 529-540, ISSN: 0035-8711, DOI: 10.1093/mnras/stw1924
Monthly Notices of the Royal Astronomical Society 463/1 2019-07-23
2016 Muhammad A. Latif, Andrea Ferrara
Formation of Supermassive Black Hole Seeds
published pages: , ISSN: 1448-6083, DOI: 10.1017/pasa.2016.41
Publications of the Astronomical Society of Australia 33 2019-07-23

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