Black hole formation from collapsing dust fluid in a background of dark energy

Study of gravitational collapse and black hole formation has got much interest in recent years after gravitational waves detection from mergers of black hole binaries. Here, we studied the gravitational collapse of a spherically symmetric clump of matter, constituted of dust fluid, [Formula: see text], in a background of dark energy, [Formula: see text]. We investigate the curvature effect [Formula: see text] on the gravitational collapsing process. Gravitational collapsing process for two different cases is discussed i.e. collapse of dust cloud only and collapse of dark energy. We used equation of state [Formula: see text], [Formula: see text]. For dark energy case, we discuss the collapsing process and curvature effect for different parameter values of equation of state.

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Gravitational collapse of dark energy field configurations and supermassive black hole formation

Journal of Experimental and Theoretical Physics ◽

10.1134/s1063776116130148 ◽

2016 ◽

Vol 123 (5) ◽

pp. 827-831 ◽

Cited By ~ 2

Author(s):

V. Jhalani ◽

H. Kharkwal ◽

A. Singh

Keyword(s):

Black Hole ◽

Dark Energy ◽

Gravitational Collapse ◽

Hole Formation ◽

Energy Field ◽

Black Hole Formation ◽

Supermassive Black Hole

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

Physics Today ◽

10.1063/pt.3.4628 ◽

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

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Feeding and feedback from little monsters: AGN in dwarf galaxies

Proceedings of the International Astronomical Union ◽

10.1017/s1743921320002240 ◽

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.

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