Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Constraint on hybrid stars with gravitational wave events   Motivated by the recent discoveries of compact objects from LIGO/Virgo
observations, we study the possibility of identifying some of these objects as
compact stars made of dark matter called dark stars, or the mix of dark and
nuclear matters called hybrid stars. In particular, in GW190814, a new compact
object with 2.6 $M_{\odot}$ is reported. This could be the lightest black hole,
the heaviest neutron star, and a dark or hybrid star. In this work, we extend
the discussion on the interpretations of the recent LIGO/Virgo events as hybrid
stars made of various self-interacting dark matter (SIDM) in the isotropic
limit. We pay particular attention to the saddle instability of the hybrid
stars which will constrain the possible SIDM models.

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The categories of this paper are: hep-ex
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The categories of this paper are: atom-ph
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The categories of this paper are: dg-ga
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The categories of this paper are: ao-sci
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The categories of this paper are: stat
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The categories of this paper are: acc-phys
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The categories of this paper are: adap-org
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The categories of this paper are: patt-sol
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The categories of this paper are: math
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The categories of this paper are: cmp-lg
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The categories of this paper are: hep-lat
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The categories of this paper are: cs
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The categories of this paper are: q-bio
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The categories of this paper are: math-ph
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The categories of this paper are: chem-ph
4
The categories of this paper are: cond-mat