The Blue Lurker WOCS 14020: A Long-period Post-common-envelope Binary in M67 Originating from a Merger in a Triple System

We present Hubble Space Telescope far-ultraviolet (FUV) spectra of a blue lurker–white dwarf (BL–WD) binary system in the 4 Gyr open cluster M67. We fit the FUV spectrum of the WD, determining it is a C/O WD with a mass of $0.7{2}_{-0.04}^{+0.05}$ M _⊙ and a cooling age of ~400 Myr. This requires a...

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Bibliographic Details
Main Authors: Emily M. Leiner, Natalie M. Gosnell, Aaron M. Geller, Meng Sun, Robert D. Mathieu, Alison Sills
Format: Article
Language:English
Published: IOP Publishing 2025-01-01
Series:The Astrophysical Journal Letters
Subjects:
Online Access:https://doi.org/10.3847/2041-8213/ad9d0c
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