scholarly journals THE ARDUOUS JOURNEY TO BLACK HOLE FORMATION IN POTENTIAL GAMMA-RAY BURST PROGENITORS

2012 ◽  
Vol 754 (1) ◽  
pp. 76 ◽  
Author(s):  
Luc Dessart ◽  
Evan O’Connor ◽  
Christian D. Ott
Keyword(s):  
Black Hole ◽  
Gamma Ray ◽  
Hole Formation ◽  
Gamma Ray Burst ◽  
Black Hole Formation

scholarly journals Stellar Core Collapse and Exotic Matter

2011 ◽  
Vol 7 (S279) ◽  
pp. 367-368
Author(s):  
Ken'ichiro Nakazato ◽  
Kohsuke Sumiyoshi
Keyword(s):  
Black Hole ◽  
Degrees Of Freedom ◽  
Gamma Ray ◽  
Dense Matter ◽  
Gamma Ray Bursts ◽  
Core Collapse ◽  
Hole Formation ◽  
Stellar Core ◽  
Black Hole Formation ◽  
Hydrodynamical Simulations

AbstractSome supernovae and gamma-ray bursts are thought to accompany a black hole formation. In the process of a black hole formation, a central core becomes hot and dense enough for hyperons and quarks to appear. In this study, we perform neutrino-radiation hydrodynamical simulations of a stellar core collapse and black hole formation taking into account such exotic components. In our computation, general relativity is fully considered under spherical symmetry. As a result, we find that the additional degrees of freedom soften the equation of state of matter and promote the black hole formation. Furthermore, their effects are detectable as a neutrino signal. We believe that the properties of hot and dense matter at extreme conditions are essential for the studies on the astrophysical black hole formation. This study will be hopefully a first step toward a physics of the central engine of gamma-ray bursts.

The theory of black hole formation shares the Nobel Prize in Physics

Physics Today ◽  
2020 ◽  
Vol 73 (12) ◽  
pp. 14-17
Author(s):  
Heather M. Hill
Keyword(s):  
Black Hole ◽  
Nobel Prize ◽  
Hole Formation ◽  
Black Hole Formation ◽  
Nobel Prize In Physics

scholarly journals Feeding and feedback from little monsters: AGN in dwarf galaxies

2020 ◽  
Vol 15 (S359) ◽  
pp. 238-242
Author(s):  
Mar Mezcua
Keyword(s):  
Black Holes ◽  
Black Hole ◽  
Early Universe ◽  
Dwarf Galaxies ◽  
Scaling Relations ◽  
Strong Impact ◽  
Hole Formation ◽  
Intermediate Mass ◽  
Black Hole Formation ◽  
Low Mass

AbstractDetecting the seed black holes from which quasars formed is extremely challenging; however, those seeds that did not grow into supermassive should be found as intermediate-mass black holes (IMBHs) of 100 – 105 M⊙ in local dwarf galaxies. The use of deep multiwavelength surveys has revealed that a population of actively accreting IMBHs (low-mass AGN) exists in dwarf galaxies at least out to z ˜3. The black hole occupation fraction of these galaxies suggests that the early Universe seed black holes formed from direct collapse of gas, which is reinforced by the possible flattening of the black hole-galaxy scaling relations at the low-mass end. This scenario is however challenged by the finding that AGN feedback can have a strong impact on dwarf galaxies, which implies that low-mass AGN in dwarf galaxies might not be the untouched relics of the early seed black holes. This has important implications for seed black hole formation models.

scholarly journals Quantum black hole formation in the BFSS matrix model

2015 ◽  
Vol 2015 (7) ◽  
Author(s):  
Sinya Aoki ◽  
Masanori Hanada ◽  
Norihiro Iizuka
Keyword(s):  
Black Hole ◽  
Matrix Model ◽  
Hole Formation ◽  
Quantum Black Hole ◽  
Black Hole Formation

scholarly journals Constraints from primordial black hole formation at the end of inflation

2010 ◽  
Vol 82 (4) ◽  
Author(s):  
Amandeep S. Josan ◽  
Anne M. Green
Keyword(s):  
Black Hole ◽  
Primordial Black Hole ◽  
Hole Formation ◽  
Black Hole Formation

scholarly journals Rebounce and black hole formation in a gravitational collapse model with vanishing radial pressure

2007 ◽  
Vol 39 (6) ◽  
pp. 825-838 ◽  
Author(s):  
Ashutosh Mahajan ◽  
Pankaj S. Joshi
Keyword(s):  
Black Hole ◽  
Gravitational Collapse ◽  
Radial Pressure ◽  
Hole Formation ◽  
Black Hole Formation ◽  
Collapse Model

scholarly journals Effect of cosmic ray/X-ray ionization on supermassive black hole formation

2011 ◽  
Vol 416 (4) ◽  
pp. 2748-2759 ◽  
Author(s):  
Kohei Inayoshi ◽  
Kazuyuki Omukai
Keyword(s):  
Black Hole ◽  
Cosmic Ray ◽  
Hole Formation ◽  
X Ray ◽  
Black Hole Formation ◽  
Supermassive Black Hole
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