GRAVITATIONAL MEMORY OF BOSON STARS

Citation
Df. Torres et al., GRAVITATIONAL MEMORY OF BOSON STARS, Physical review. D. Particles and fields, 57(8), 1998, pp. 4821-4825
Citations number
27
Categorie Soggetti
Physics, Particles & Fields
ISSN journal
05562821
Volume
57
Issue
8
Year of publication
1998
Pages
4821 - 4825
Database
ISI
SICI code
0556-2821(1998)57:8<4821:GMOBS>2.0.ZU;2-D
Abstract
''Gravitational memory'' refers to the possibility that, in cosmologie s with a time-varying gravitational ''constant,'' objects such as blac k holes may retain a memory of conditions at the time of their birth. We consider this phenomenon in a different physical scenario, where th e objects under consideration are boson stars. We construct boson star solutions in scalar-tensor gravity theories, and consider their depen dence on the asymptotic value of the gravitational strength. We then d iscuss several possible physical interpretations, including the concep t of pure gravitational stellar evolution.