Cerenkov radiation and scalar stars
arXiv:gr-qc/0006086 · doi:10.1088/0264-9381/17/16/306
Abstract
We explore the possibility that a charged particle moving in the gravitational field generated by a scalar star could radiate energy via a recently proposed gravitational Čerenkov mechanism. We numerically prove that this is not possible for stable boson stars. We also show that soliton stars could have Čerenkov radiation for particular values of the boson mass, although diluteness of the star grows and actual observational possibility decreases for the more usually discussed boson masses. These conclusions diminish, although do not completely rule out, the observational possibility of actually detecting scalar stars using this mechanism, and lead us to consider other forms, like gravitational lensing.
Accepted for publication in Class. Quantum Grav
References in corpus (2)
Cited by in corpus (6)
- TOPICAL REVIEW: General relativistic boson stars
- A supermassive boson star at the galactic center?
- Accretion disc onto a static non-baryonic compact object
- How to tell an accreting boson star from a black hole
- Astrophysical constraints on a possible neutrino ball at the Galactic Center
- Neutrino condensates at center of galaxies as background for the MSW mechanism