ABRAMOWICZ, Marek, Maciek WIELGUS, G. F. R. ELLIS and VINCENT. Cosmic background radiation in the vicinity of a Schwarzschild black hole: No classic firewall. Physical Review D. US - Spojené státy americké, 2014, vol. 90, No 12, p. "124024-1"-"124024-13", 13 pp. ISSN 1550-7998. Available from: https://dx.doi.org/10.1103/PhysRevD.90.124024.
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Basic information
Original name Cosmic background radiation in the vicinity of a Schwarzschild black hole: No classic firewall
Authors ABRAMOWICZ, Marek, Maciek WIELGUS, G. F. R. ELLIS and VINCENT.
Edition Physical Review D, US - Spojené státy americké, 2014, 1550-7998.
Other information
Original language English
Type of outcome Article in a journal
Field of Study 10308 Astronomy
Confidentiality degree is not subject to a state or trade secret
WWW URL
Organization unit Faculty of Philosophy and Science in Opava
Doi http://dx.doi.org/10.1103/PhysRevD.90.124024
UT WoS 000346830000010
Keywords in English Eddington capture sphere; accretion; disks; jets
Tags FÚ
Tags International impact, Reviewed
Changed by Changed by: Mgr. Pavlína Jalůvková, učo 25213. Changed: 15/4/2021 10:58.
Abstract
The cosmic blackbody background radiation pervades the entire Universe, and so falls into every astrophysical black hole. The blueshift of the infalling photons, measured by a static observer, is infinite at the event horizon. This raises a question as to whether a "firewall" of high energy density may form just outside the horizon, or whether the effect can be attributed exclusively to a singular behavior of the static observer's frame at the horizon. In principle, the presence of such a firewall may alter the motion of the infalling matter, influence the black hole evolution, or even invalidate the vacuum Einstein field equation solution as a realistic approximation for black holes. In this paper we show by means of analytic calculations that all these effects indeed exist, but their magnitude is typically negligibly small, even though the matter stress tensor is divergent in the static frame at r = 2M. That is not surprising because of the divergent relation of that frame to a freel
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