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Title: Electromagnetic Characterization of the LISA Verification Binary ZTF J0526+5934
Abstract

We present an analysis of new and archival data to the 20.506 minute LISA verification binary J052610.42+593445.32 (J0526+5934). Our joint spectroscopic and photometric analysis finds that the binary contains an unseenM1= 0.89 ± 0.11MCO-core white dwarf primary with anM2= 0.38 ± 0.07Mpost-core-burning subdwarf, or low-mass white dwarf, companion. Given the short orbital period and relatively large total binary mass, we find that LISA will detect this binary with signal-to-noise ratio 44 after 4 yr of observations. J0526+5934 is expected to merge within 1.8 ± 0.3 Myr and likely result in a D6scenario Type Ia supernova or form a He-rich star that will evolve into a massive single white dwarf.

 
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NSF-PAR ID:
10479518
Author(s) / Creator(s):
; ; ;
Publisher / Repository:
DOI PREFIX: 10.3847
Date Published:
Journal Name:
The Astrophysical Journal
Volume:
959
Issue:
2
ISSN:
0004-637X
Format(s):
Medium: X Size: Article No. 114
Size(s):
["Article No. 114"]
Sponsoring Org:
National Science Foundation
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