The gravitational redshift of boson stars

Abstract

We investigate the possible gravitational redshift values for boson stars with a self-interaction, studying a wide range of possible masses. We find a limiting value of $z_{lim}\simeq 0.687$ for stable boson star configurations. We compare theoretical expectation with the observational capabilities in several different wavebands, concluding that direct observation of boson stars by this means will be extremely challenging. X-ray spectroscopy is perhaps the most interesting possibility.

7 pages RevTeX file with five figures incorporated (uses RevTeX and psfig)

References in corpus (1)

• Gravitational Stability of Boson Stars

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