Cosmic censorship and parametrized spinning black-hole geometries
Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
Standard
Cosmic censorship and parametrized spinning black-hole geometries. / Cardoso, Vitor; Queimada, Leonel.
I: General Relativity and Gravitation, Bind 47, Nr. 12, 150, 12.2015.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
Harvard
APA
Vancouver
Author
Bibtex
}
RIS
TY - JOUR
T1 - Cosmic censorship and parametrized spinning black-hole geometries
AU - Cardoso, Vitor
AU - Queimada, Leonel
PY - 2015/12
Y1 - 2015/12
N2 - The "cosmic censorship conjecture" asserts that all singularities arising from gravitational collapse are hidden within black holes. We investigate this conjecture in a setup of interest for tests of general relativity: black hole solutions which are parametrically small deviations away from the Kerr solution. These solutions have an upper bound on rotation, beyond which a naked singularity is visible to outside observers. We study whether these (generic) spacetimes can be spun-up past extremality with point particles or accretion disks. Our results show that cosmic censorship is preserved for generic parameterizations. We also present examples of special geometries which can be spun-up past extremality.
AB - The "cosmic censorship conjecture" asserts that all singularities arising from gravitational collapse are hidden within black holes. We investigate this conjecture in a setup of interest for tests of general relativity: black hole solutions which are parametrically small deviations away from the Kerr solution. These solutions have an upper bound on rotation, beyond which a naked singularity is visible to outside observers. We study whether these (generic) spacetimes can be spun-up past extremality with point particles or accretion disks. Our results show that cosmic censorship is preserved for generic parameterizations. We also present examples of special geometries which can be spun-up past extremality.
KW - Cosmic censorship
KW - Kerr paradigm
KW - Parametrized geometries
KW - Event horizon telescope
U2 - 10.1007/s10714-015-1990-5
DO - 10.1007/s10714-015-1990-5
M3 - Journal article
VL - 47
JO - General Relativity and Gravitation
JF - General Relativity and Gravitation
SN - 0001-7701
IS - 12
M1 - 150
ER -
ID: 300070823