SmartStars SIGNED
Pathways towards forming super-massive black holes in the early Universe
Total Cost €
0EC-Contrib. €
0Partnership
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0SmartStars project word cloud
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Project "SmartStars" data sheet
The following table provides information about the project.
| Coordinator |
DUBLIN CITY UNIVERSITY
Organization address contact info |
| Coordinator Country | Ireland [IE] |
| Project website | http://www.johnregan.org |
| Total cost | 187˙866 € |
| EC max contribution | 187˙866 € (100%) |
| Programme |
1. H2020-EU.1.3.2. (Nurturing excellence by means of cross-border and cross-sector mobility) |
| Code Call | H2020-MSCA-IF-2015 |
| Funding Scheme | MSCA-IF-EF-ST |
| Starting year | 2016 |
| Duration (year-month-day) | from 2016-10-03 to 2018-10-02 |
Partnership
Take a look of project's partnership.
| # | ||||
|---|---|---|---|---|
| 1 | DUBLIN CITY UNIVERSITY | IE (DUBLIN) | coordinator | 187˙866.00 |
Map
Project objective
Many questions remain unanswered regarding the origin and evolution of Black Holes (BHs). One such question concerns how BHs with masses of one billion times the mass of the sun could exist less than one billion years after the Big Bang? How could these objects grow so massive so quickly? Explaining their existence remains one of the grand challenges in astrophysics. The ‘direct collapse’ mechanism provides a compelling solution: if unusually massive stars can form early in the Universe producing large seed BHs (M >= 10000 Msun ) then the existence of massive BHs at early times can be explained. During this fellowship, hosted at Dublin City University (DCU), I will develop, in collaboration with Prof. Downes, novel and innovative techniques (smart star particles (SSPs) - see part B) which will spearhead further development of the direct collapse scenario. My BH expertise will be matched with the expertise in star formation modelling of Prof. Turlough Downes resulting in a unique inter-disciplinary collaboration. This research will allow the direct collapse mechanism to be fully tested, compared against current observational results and used to guide upcoming missions. The SSPs will contain algorithms designed to capture the essential physics of black hole seed formation. Their function will be to allow us to probe the nature of the central object - does a super-massive star form, or perhaps a quasi-star, or does fragmentation dominate resulting in the formation of stellar mass black holes? Answering these questions will allow us to prepare more thoroughly for upcoming missions. In this regard the research proposal is extremely timely, given recent observational progress, where a Lyman-alpha source has been discovered within a metal free region at very early time. The detailed results we will produce will be used to guide and interpret current and future observational campaigns including Chandra (XRay), JWST (infrared), SKA (radio) and Athena (Xray).
Publications
| year | authors and title | journal | last update |
|---|---|---|---|
| 2016 |
James S. Bolton, Ewald Puchwein, Debora Sijacki, Martin G. Haehnelt, Tae-Sun Kim, Avery Meiksin, John A. Regan, Matteo Viel The Sherwood simulation suite: overview and data comparisons with the Lyman α forest at redshifts 2 ≤ z ≤ 5 published pages: 897-914, ISSN: 0035-8711, DOI: 10.1093/mnras/stw2397 |
Monthly Notices of the Royal Astronomical Society 464/1 | 2019-05-07 |
| 2017 |
Bhaskar Agarwal, John Regan, Ralf S. Klessen, Turlough P. Downes, Erik Zackrisson An analytic resolution to the competition between Lyman–Werner radiation and metal winds in direct collapse black hole hosts published pages: 4034-4038, ISSN: 0035-8711, DOI: 10.1093/mnras/stx1528 |
Monthly Notices of the Royal Astronomical Society 470/4 | 2019-05-07 |
| 2017 |
Anna T. P. Schauer, John Regan, Simon C. O. Glover, Ralf S. Klessen The formation of direct collapse black holes under the influence of streaming velocities published pages: 4878-4884, ISSN: 0035-8711, DOI: 10.1093/mnras/stx1915 |
Monthly Notices of the Royal Astronomical Society 471/4 | 2019-05-07 |
| 2018 |
Tilman Hartwig, Bhaskar Agarwal, John A Regan Gravitational wave signals from the first massive black hole seeds published pages: L23-L27, ISSN: 1745-3933, DOI: 10.1093/mnrasl/sly091 |
Monthly Notices of the Royal Astronomical Society: Letters 479/1 | 2019-05-07 |
| 2018 |
John A Regan, Turlough P Downes Fragmentation inside atomic cooling haloes exposed to Lyman–Werner radiation published pages: 4636-4647, ISSN: 0035-8711, DOI: 10.1093/mnras/sty134 |
Monthly Notices of the Royal Astronomical Society 475/4 | 2019-05-07 |
| 2018 |
John A Regan, Turlough P Downes Rise of the first supermassive stars published pages: 5037-5049, ISSN: 0035-8711, DOI: 10.1093/mnras/sty1289 |
Monthly Notices of the Royal Astronomical Society 478/4 | 2019-05-07 |
| 2018 |
Britton D Smith, John A Regan, Turlough P Downes, Michael L Norman, Brian W O’Shea, John H Wise The growth of black holes from Population III remnants in the Renaissance simulations published pages: 3762-3773, ISSN: 0035-8711, DOI: 10.1093/mnras/sty2103 |
Monthly Notices of the Royal Astronomical Society 480/3 | 2019-05-07 |
| 2017 |
John A. Regan, Eli Visbal, John H. Wise, Zoltán Haiman, Peter H. Johansson, Greg L. Bryan Rapid formation of massive black holes in close proximity to embryonic protogalaxies published pages: 75, ISSN: 2397-3366, DOI: 10.1038/s41550-017-0075 |
Nature Astronomy 1/4 | 2019-06-13 |
| 2017 |
Britton D. Smith, Greg L. Bryan, Simon C. O. Glover, Nathan J. Goldbaum, Matthew J. Turk, John Regan, John H. Wise, Hsi-Yu Schive, Tom Abel, Andrew Emerick, Brian W. O\'Shea, Peter Anninos, Cameron B. Hummels, Sadegh Khochfar grackle: a chemistry and cooling library for astrophysics published pages: 2217-2234, ISSN: 0035-8711, DOI: 10.1093/mnras/stw3291 |
Monthly Notices of the Royal Astronomical Society 466/2 | 2019-06-13 |
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