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Collapse to black holes in Brans-Dicke theory. II. Comparison with general relativity

Scheel, Mark A. and Shapiro, Stuart L. and Teukolsky, Saul A. (1995) Collapse to black holes in Brans-Dicke theory. II. Comparison with general relativity. Physical Review D, 51 (8). pp. 4236-4249. ISSN 2470-0010. doi:10.1103/PhysRevD.51.4236.

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We discuss a number of long-standing theoretical questions about collapse to black holes in the Brans-Dicke theory of gravitation. Using a new numerical code we show that Oppenheimer-Snyder collapse in this theory produces black holes that are identical to those of general relativity in final equilibrium, but are quite different from those of general relativity during dynamical evolution. We find that there are epochs during which the apparent horizon of such a black hole passes outside the event horizon, and that the surface area of the event horizon decreases with time. This behavior is possible because theorems which prove otherwise assume R_(ab)l^al^b ≥ 0 for all null vectors l^a. We show that dynamical spacetimes in Brans-Dicke theory can violate this inequality, even in vacuum, for any value of ω.

Item Type:Article
Related URLs:
URLURL TypeDescription Paper
Teukolsky, Saul A.0000-0001-9765-4526
Additional Information:© 1995 American Physical Society. (Received 9 November 1994) We would like to thank T. Baumgarte for helpful discussions. This work has been supported in part by National Science Foundation Grants No. AST 91-19475 and No. PHY 94-08378 and the Grand Challenge Grant No. NSF PHY 93-18152/ASC 93-18152 (ARPA supplemented).
Funding AgencyGrant Number
NSFAST 91-19475
NSFPHY 94-08378
NSFPHY 93-18152
Advanced Research Projects Agency (ARPA)UNSPECIFIED
Issue or Number:8
Classification Code:PACS number(s): 04.70.-s, 04.25.Dm, 04.30.Db, 04.50.+h
Record Number:CaltechAUTHORS:20180719-134818063
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:88007
Deposited By: George Porter
Deposited On:19 Jul 2018 21:00
Last Modified:16 Nov 2021 00:22

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