A Deficit of Massive White Dwarfs in Gaia Astrometric Binaries

The third data release of Gaia introduced a large catalog of astrometric binaries, out of which about 3200 are likely main-sequence stars with a white dwarf (WD) companion. These binaries are typically found with orbital separations of ∼1 au, a separation range that was largely unexplored due to obs...

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Bibliographic Details
Main Authors: Na’ama Hallakoun, Sahar Shahaf, Tsevi Mazeh, Silvia Toonen, Sagi Ben-Ami
Format: Article
Language:English
Published: IOP Publishing 2024-01-01
Series:The Astrophysical Journal Letters
Subjects:
Online Access:https://doi.org/10.3847/2041-8213/ad5e63