38 citations · 157 across the 18 of their papers we have counts for
5 papers · 1 filter
A search for self-lensing binaries with TESS and constraints on their occurrence rate
Natsuko Yamaguchi, Kareem El-Badry, Nicholas M. Sorabella
Five self-lensing binaries (SLBs) have been discovered with Kepler light curves. They contain white dwarfs (WDs) in AU-scale orbits that gravitationally lens solar-type companions.…
The companion mass distribution of post common envelope hot subdwarf binaries: evidence for boosted and disrupted magnetic braking?
Lisa Blomberg, Kareem El-Badry, Katelyn Breivik +6
We measure the mass distribution of main-sequence (MS) companions to hot subdwarf B stars (sdBs) in post-common envelope binaries (PCEBs). We carried out a spectroscopic survey of…
Wide post-common envelope binaries from Gaia: orbit validation and formation models
Natsuko Yamaguchi, Kareem El-Badry, Natalie Rees +3
Astrometry from {\it Gaia} DR3 has enabled the discovery of a sample of 3000+ binaries containing white dwarfs (WD) and main-sequence (MS) stars in relatively wide orbits, with orb…
No longer impossible: the self-lensing binary KIC 8145411 is a triple
Natsuko Yamaguchi, Kareem El-Badry, David R. Ciardi +5
Five self-lensing binaries (SLBs) have been discovered with data from the \textit{Kepler} mission. One of these systems is KIC 8145411, which was reported to host an extremely low…
A population of neutron star candidates in wide orbits from Gaia astrometry
Kareem El-Badry, Hans-Walter Rix, David W. Latham +10
We report discovery and spectroscopic follow-up of 21 astrometric binaries containing solar-type stars and dark companions with masses near 1.4 . The simplest interpreta…