Author

S. Shahaf

2 papers indexed here

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Review Sep 2026

Beyond what's observed: hierarchical inference of Gaia astrometric compact-object binaries

Astrometry from the Gaia mission has revealed a large and homogeneous population of binaries containing compact objects, including more than 3000 white dwarf--main sequence (WDMS) binaries with orbital periods of $P_{\rm orb}\sim100$--$1000$ d. Most of these binaries likely underwent mass transfer from asymptotic giant...

Natsuko Yamaguchi, K. El-Badry, R. Essick et al. · 1 citation

Preprint Sep 2026

Mass-dependent multiplicity fraction in low mass stars revealed by Gaia astrometry

Stellar multiplicity at different orbital periods is probed by different techniques: radial velocities at the shortest periods, direct imaging at the longest, and astrometry in between. Gaia DR3 provides unprecedented astrometric information to constrain binary populations with periods of tens to thousands of days. Bey...

B. Pennell, H. Rix, K. El-Badry et al. · 0 citations