Cerenkov radiation and scalar stars
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Publication:4523695
DOI10.1088/0264-9381/17/16/306zbMATH Open0966.83018arXivgr-qc/0006086OpenAlexW2047372012MaRDI QIDQ4523695
S. Capozzielo, D. F. Torres, Gaetano Lambiase
Publication date: 14 January 2001
Published in: Classical and Quantum Gravity (Search for Journal in Brave)
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 v{C}erenkov mechanism. We numerically prove that this is not possible for stable boson stars. We also show that soliton stars could have v{C}erenkov 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.
Full work available at URL: https://arxiv.org/abs/gr-qc/0006086
Macroscopic interaction of the gravitational field with matter (hydrodynamics, etc.) (83C55) Einstein-Maxwell equations (83C22)
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