Author:
Nakayama Kazunori,Takahashi Fuminobu,Yamada Masaki
Abstract
AbstractWe point out that a soliton such as an oscillon or boson star inevitably decays into gravitons through gravitational interactions. These decay processes exist even if there are no apparent self-interactions of the constituent field, scalar or vector, since they are induced by gravitational interactions. Hence, our results provide a strict upper limit on the lifetime of oscillons and boson stars including the dilute axion star. We also calculate the spectrum of the graviton background from decay of solitons.
Subject
Astronomy and Astrophysics
Cited by
2 articles.
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