Gravitational collapse and formation of a black hole in a type II minimally modified gravity theory
Gravitational collapse and formation of a black hole in a type II minimally modified gravity theory
复制标题
II型最小修正引力理论中的引力塌缩和黑洞的形成
DOI:
10.1088/1475-7516/2023/03/030
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发表时间:
2023
影响因子:
6.4
通讯作者:
Masroor C. Pookkillath
中科院分区:
文献类型:
--
作者:
Antonio De Felice;Kei-ichi Maeda;Shinji Mukohyama;Masroor C. Pookkillath
We study the spherically symmetric collapse of a cloud of dust in VCDM, a class of gravitational theories with two local physical degrees of freedom. We find that the collapse corresponds to a particular foliation of the Oppenheimer-Snyder solution in general relativity (GR) which is endowed with a constant trace for the extrinsic curvature relative to the time t constant foliation. For this solution, we find that the final state of the collapse leads to a static configuration with the lapse function vanishing at a radius inside the apparent horizon. Such a point is reached in an infinite time-t interval, t being the cosmological time, ie the time of an observer located far away from the collapsing cloud. The presence of this vanishing lapse endpoint implies the necessity of a UV completion to describe the physics inside the resulting black hole. On the other hand, since the corresponding cosmic time t is infinite, VCDM can safely describe the whole history of the universe at large scales without knowledge of the unknown UV completion, despite the presence of the so-called shadowy mode.
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影响因子:
5
作者:
De Felice Antonio;Mukohyama Shinji;Pookkillath Masroor C.
通讯作者:
Pookkillath Masroor C.
影响因子:
6.4
作者:
K. Aoki;Francesco Di Filippo;S. Mukohyama
通讯作者:
K. Aoki;Francesco Di Filippo;S. Mukohyama
DOI:
--
发表时间:
1991
期刊:
Physical Review D, Particles and fields
影响因子:
--
作者:
Ken;Kei;Takashi Nakamura;K. Oohara
通讯作者:
K. Oohara
影响因子:
6.4
作者:
Felice Antonio De;Doll Andreas;Mukohyama Shinji
通讯作者:
Mukohyama Shinji
影响因子:
5
作者:
De Felice Antonio;Mukohyama Shinji;Pookkillath Masroor C.
通讯作者:
Pookkillath Masroor C.