A Not-so-compact Companion: Massive, Oversized White Dwarf in a Post-common-envelope Eclipsing Binary

We provide a detailed characterization of 2M07515777+1807352, a post-common-envelope eclipsing binary system with a 10.3-day, nearly (but not quite) circular orbit ( e = 0.02). This system consists of a massive white dwarf (WD; 1.08 M _⊙ ) and a 4400 K main-sequence companion (0.66 M _⊙ ). This WD i...

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Bibliografiske detaljer

Principais autores:	Erin Motherway, Evan Linck, Robert D. Mathieu, Don Dixon, Keivan G. Stassun, Katelyn Breivik, Steve Majewski, Onno R. Pols
Format:	Artigo
Sprog:	Inglês
Udgivet:	IOP Publishing 2026-01-01
Serier:	The Astronomical Journal
Fag:	Binary stars Common envelope evolution Close binary stars Common envelope binary stars Eclipsing binary stars Stellar evolution
Online adgang:	https://doi.org/10.3847/1538-3881/ae3b42
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