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The Silent Majority: The Interacting Post-Common-Envelope Binaries Underlying Cataclysmic Variables
Yarin Meir Shani, Na'ama Hallakoun, Sagi Ben-Ami +4
We analyze the orbital period distribution of post-common-envelope white-dwarf-main-sequence (WDMS) binaries by cross-matching the new spectroscopic Gaia DR3 WDMS catalog with TESS…
Gaia Barium Dwarfs and Their Ostensibly Ordinary Counterparts
Param Rekhi, Sahar Shahaf, Sagi Ben-Ami +4
The recently identified Gaia population of main-sequence--white dwarf (MS+WD) binaries at separations of , often with moderate eccentricities, is not readily re…
A search for minute-time-scale flares from the transient AT\,2024wpp
Eran O. Ofek, Lior Ozer, Ruslan Konno +21
The AT 2018cow-like fast blue optical transient AT2022tsd showed a large number of few-minute-duration, high-luminosity (~10^43 erg/s) flares. We present an intensive search for su…
The initial-to-final mass relation of white dwarfs in intermediate-separation binaries
Oren Ironi, Sagi Ben-Ami, Na'ama Hallakoun +1
We examine the applicability of the initial-to-final mass relation (IFMR) for white dwarfs (WDs) in intermediate-separation binary systems (approximately 1 AU), using astrometric b…
An Integral Field Unit for the Binospec Spectrograph
Daniel Fabricant, Sagi Ben-Ami, Igor Chilingarian +5
Binospec is a wide-field optical (360 to 1000 nm) spectrograph commissioned at the MMT 6.5m telescope in 2017. In direct imaging mode Binospec addresses twin 8 (wide) by 1…