Adamane Pallathadka, Gautham https://orcid.org/0000-0002-5864-1332
Chandra, Vedant https://orcid.org/0000-0002-0572-8012
Gänsicke, Boris T. https://orcid.org/0000-0002-2761-3005
Zakamska, Nadia L. https://orcid.org/0000-0001-6100-6869
Koester, Detlev https://orcid.org/0000-0002-6164-6978
Zenati, Yossef https://orcid.org/0000-0002-0632-8897
Crumpler, Nicole R. https://orcid.org/0000-0002-8866-4797
Arseneau, Stefan M. https://orcid.org/0000-0002-6270-8624
Hermes, J. J. https://orcid.org/0000-0001-5941-2286
Schreiber, Matthias R. https://orcid.org/0000-0003-3903-8009
Stassun, Keivan G. https://orcid.org/0000-0002-3481-9052
Schwope, Axel https://orcid.org/0000-0003-3441-9355
El-Badry, Kareem https://orcid.org/0000-0002-6871-1752
Tovmassian, Gagik https://orcid.org/0000-0002-2953-7528
Cunningham, Tim https://orcid.org/0000-0001-7296-3533
Morrison, Sean https://orcid.org/0000-0002-6770-2627
Article Title: Double White Dwarf Binaries in SDSS-V DR19: The Discovery of a Rare DA+DQ White Dwarf Binary with a 31 hr Orbital Period
Journal Title: The Astrophysical Journal
Article Type: paper
Copyright Information: © 2026. The Author(s). Published by the American Astronomical Society.
Publication dates
Date Received: 2025-07-14
Date Accepted: 2026-01-17
Online publication date: 2026-03-09