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

Published in:	The Astrophysical Journal Letters
Main Authors:	Na’ama Hallakoun, Sahar Shahaf, Tsevi Mazeh, Silvia Toonen, Sagi Ben-Ami
Format:	Article
Language:	English
Published:	IOP Publishing 2024-01-01
Subjects:	White dwarf stars Astrometric binary stars Post-asymptotic giant branch stars Multiple star evolution Gaia Interacting binary stars
Online Access:	https://doi.org/10.3847/2041-8213/ad5e63