Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Blue Large-Amplitude Pulsators: the Possible Surviving Companions of
  Type Ia Supernovae   The single degenerate (SD) model, one of the leading models for the
progenitors of Type Ia supernovae (SNe Ia), predicts that there should be
binary companions that survive the supernova explosion which, in principle,
should be detectable in the Galaxy. The discovery of such surviving companions
could therefore provide conclusive support for the SD model. Several years ago,
a new type of mysterious variables was discovered, the so-called blue
large-amplitude pulsators (BLAPs). Here we show that all the properties of
BLAPs can be reasonably well reproduced if they are indeed such surviving
companions, in contrast to other proposed channels. This suggests that BLAPs
could potentially be the long-sought surviving companions of SNe Ia. Our model
also predicts a new channel for forming single hot subdwarf stars, consistent
with a small group in the present hot-subdwarf-star sample.

24
The categories of this paper are: dg-ga
35
The categories of this paper are: mtrl-th
21
The categories of this paper are: adap-org
13
The categories of this paper are: quant-ph
17
The categories of this paper are: q-fin
0
The categories of this paper are: hep-ph
12
The categories of this paper are: nucl-th
25
The categories of this paper are: patt-sol
28
The categories of this paper are: alg-geom
9
The categories of this paper are: nlin
3
The categories of this paper are: physics
18
The categories of this paper are: econ
34
The categories of this paper are: chem-ph
14
The categories of this paper are: math-ph
5
The categories of this paper are: gr-qc
29
The categories of this paper are: funct-an