Mathematics – Logic
Scientific paper
Oct 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992phrvd..46.3227b&link_type=abstract
Physical Review D (Particles, Fields, Gravitation, and Cosmology), Volume 46, Issue 8, 15 October 1992, pp.R3227-R3230
Mathematics
Logic
43
Black Holes
Scientific paper
We discuss the formation of primordial black holes during the early stages of the Universe if the effective gravitational ``constant'' evolves with time. We describe two possible courses of cosmological evolution: first, one in which the black-hole horizon evolves on the Hubble time scale, and a second, in which the long-range scalar field from which the gravitational coupling is derived remains constant over the horizon scale while evolving in the cosmological background. The second scenario leads to significant changes to the standard picture of black-hole explosions because black holes retain ``memory'' of the value of the gravitational constant at the time of their formation. There are significant implications for observational searches for black-hole explosions if the gravitation ``constant'' has changed with time since the Universe was about 10-25 s old.
No associations
LandOfFree
Gravitational memory\? does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Gravitational memory\?, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Gravitational memory\? will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1871253