Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Asteroseismic Fingerprints of Stellar Mergers   Stellar mergers are important processes in stellar evolution, dynamics, and
transient science. However, it is difficult to identify merger remnant stars
because they cannot easily be distinguished from single stars based on their
surface properties. We demonstrate that merger remnants can potentially be
identified through asteroseismology of red giant stars using measurements of
the gravity mode period spacing together with the asteroseismic mass. For
mergers that occur after the formation of a degenerate core, remnant stars have
over-massive envelopes relative to their cores, which is manifested
asteroseismically by a g~mode period spacing smaller than expected for the
star's mass. Remnants of mergers which occur when the primary is still on the
main sequence or whose total mass is less than $\approx\! 2 \, M_\odot$ are
much harder to distinguish from single stars. Using the red giant asteroseismic
catalogs of Vrard et al. 2016 and Yu et al. 2018, we identify $24$ promising
candidates for merger remnant stars. In some cases, merger remnants could also
be detectable using only their temperature, luminosity, and asteroseismic mass,
a technique that could be applied to a larger population of red giants without
a reliable period spacing measurement.

26
The categories of this paper are: bayes-an
36
The categories of this paper are: cmp-lg
13
The categories of this paper are: quant-ph
18
The categories of this paper are: econ
35
The categories of this paper are: mtrl-th
27
The categories of this paper are: comp-gas
37
The categories of this paper are: supr-con
22
The categories of this paper are: chao-dyn
31
The categories of this paper are: ao-sci
24
The categories of this paper are: dg-ga
32
The categories of this paper are: atom-ph
30
The categories of this paper are: q-alg
21
The categories of this paper are: adap-org
28
The categories of this paper are: alg-geom
14
The categories of this paper are: math-ph
9
The categories of this paper are: nlin