Simon Fraser University
SFU Cosmology Seminars

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Tuesday, 9 November 2010, 14:00 in P8445B

Dr. Cosimo Bambi (IPMU)

Accretion process in Kerr space-time with arbitrary value of the spin parameter

A fundamental limit for a rotating black hole is the Kerr bound |a*| ≤ 1, where a* is the spin parameter. At least in some circumstances, we can expect that astrophysical black holes rotate close to this limit. On the contrary, if current black hole candidates are not Kerr black holes but, say, compact bodies made of exotic matter, the Kerr bound does not make sense and the maximum value of |a_*| may be either smaller or larger than 1. Here I discuss the effects of the spin parameter in the accretion process onto a compact object and the observational signatures in the case |a*| > 1.

Seminars in 2010:

2010-09-14 14:00 in P8445B - Stephane Coutu (PennState): Highest energy physics with the Pierre Auger Observatory
2010-09-22 14:00 in P8445A - Wolfgang Rau (Queen's University): Dark matter search with CDMS and SuperCDMS
2010-10-19 14:00 in P8445B - Adam Moss (UBC): Precision cosmology defeats void models for acceleration
2010-11-09 14:00 in P8445B - Cosimo Bambi (IPMU): Accretion process in Kerr space-time with arbitrary value of the spin parameter
2010-12-07 14:00 in P8445B - Kris Starosta (SFU): Shell structure of nuclei and evolution of the Universe
2011-01-14 15:30 in AQ3154 - John Mather (NASA Goddard Space Flight Center): James Webb Space Telescope: Progress and scientific promise (physics colloquium)
2011-03-01 14:00 in P8445B - Ed Copeland (University of Nottingham): Scaling solutions in cosmology
2011-03-04 15:30 in B9201 - Ed Copeland (University of Nottingham): Models of dark energy (physics colloquium)
2011-03-15 14:00 in P8445B - Lam Hui (Columbia University): Bubble collisions in the early universe
2011-03-18 15:30 in B9201 - Lam Hui (Columbia University): Equivalence principle and cosmic acceleration (physics colloquium)

[ See complete seminar archives | iCal feed ]

Modified by Andrei Frolov <frolov@sfu.ca> on 2023-11-01