Electromagnetic Characterization of the LISA Verification Binary ZTF J0526+5934

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 unseen M _1 = 0.89 ± 0.11 M _⊙ CO-core white dwarf primary with an M _2 = 0.38 ± 0.07 M...

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Main Authors: Alekzander Kosakowski, Thomas Kupfer, P. Bergeron, Tyson B. Littenberg
Format: Article
Language:English
Published: IOP Publishing 2023-01-01
Series:The Astrophysical Journal
Subjects:
Online Access:https://doi.org/10.3847/1538-4357/ad0ce9
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author Alekzander Kosakowski
Thomas Kupfer
P. Bergeron
Tyson B. Littenberg
author_facet Alekzander Kosakowski
Thomas Kupfer
P. Bergeron
Tyson B. Littenberg
author_sort Alekzander Kosakowski
collection DOAJ
description 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 unseen M _1 = 0.89 ± 0.11 M _⊙ CO-core white dwarf primary with an M _2 = 0.38 ± 0.07 M _⊙ post-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 D ^6 scenario Type Ia supernova or form a He-rich star that will evolve into a massive single white dwarf.
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spelling doaj.art-0bd681e21e1a42f9a967650d14b05e1a2023-12-13T09:31:53ZengIOP PublishingThe Astrophysical Journal1538-43572023-01-01959211410.3847/1538-4357/ad0ce9Electromagnetic Characterization of the LISA Verification Binary ZTF J0526+5934Alekzander Kosakowski0https://orcid.org/0000-0002-9878-1647Thomas Kupfer1https://orcid.org/0000-0002-6540-1484P. Bergeron2https://orcid.org/0000-0003-2368-345XTyson B. Littenberg3https://orcid.org/0000-0002-9574-578XDepartment of Physics and Astronomy, Texas Tech University , 2500 Broadway Lubbock, TX 79409, USA ; a.kosakowski@protonmail.comDepartment of Physics and Astronomy, Texas Tech University , 2500 Broadway Lubbock, TX 79409, USA ; a.kosakowski@protonmail.comDepartement de Physique, Université de Montréal , C.P. 6128, Succ. Centre-Ville, Montréal, Quebec H3C 3J7, CanadaNASA Marshall Space Flight Center , Huntsville, AL 35811, USAWe 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 unseen M _1 = 0.89 ± 0.11 M _⊙ CO-core white dwarf primary with an M _2 = 0.38 ± 0.07 M _⊙ post-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 D ^6 scenario Type Ia supernova or form a He-rich star that will evolve into a massive single white dwarf.https://doi.org/10.3847/1538-4357/ad0ce9Compact binary starsGravitational wave sources
spellingShingle Alekzander Kosakowski
Thomas Kupfer
P. Bergeron
Tyson B. Littenberg
Electromagnetic Characterization of the LISA Verification Binary ZTF J0526+5934
The Astrophysical Journal
Compact binary stars
Gravitational wave sources
title Electromagnetic Characterization of the LISA Verification Binary ZTF J0526+5934
title_full Electromagnetic Characterization of the LISA Verification Binary ZTF J0526+5934
title_fullStr Electromagnetic Characterization of the LISA Verification Binary ZTF J0526+5934
title_full_unstemmed Electromagnetic Characterization of the LISA Verification Binary ZTF J0526+5934
title_short Electromagnetic Characterization of the LISA Verification Binary ZTF J0526+5934
title_sort electromagnetic characterization of the lisa verification binary ztf j0526 5934
topic Compact binary stars
Gravitational wave sources
url https://doi.org/10.3847/1538-4357/ad0ce9
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