activity
20242026
most citedObserving Orbital Decay in the Ultracompact Hot Subdwarf Binary System ZTFJ213056.71+442046.5

1 citations · 1 across the 3 of their papers we have counts for

collaborators

8 papers

astro-ph.SR2026

Mapping the Landscape of M Dwarf X-ray Flares: New Discoveries in Context

Imri A. Dickstein, Maayane T. Soumagnac, Eran O. Ofek +4

We report the discovery of 11 X-ray flares from 7 M dwarfs previously unknown to exhibit flaring activity, by cross-matching eROSITA observations of bright, nearby M dwarfs with th…

astro-ph.SR20261 cited

Observing Orbital Decay in the Ultracompact Hot Subdwarf Binary System ZTFJ213056.71+442046.5

Paul Teckenburg, Thomas Kupfer, Alex J. Brown +7

Ultracompact Galactic binary systems (UCBs) emit low-frequency gravitational waves (GWs). The emission of GWs is causing these systems to lose angular momentum, which is detectable…

astro-ph.SR2026

Discovery of the first outbursting hot subdwarf binary: ZTF J0007+4804

E. Stringer, T. Kupfer, K. Deshmukh +10

Hot subdwarf binaries with white dwarf companions with orbital periods of less than two hours are progenitor candidates for massive single white dwarfs as well as a variety of ther…

astro-ph.SR2026

No Period Change in Two Long-Period AM CVn Binaries

Matthew J. Green, Thomas R. Marsh, Jan van Roestel +25

Ultracompact binary systems, consisting of two compact objects in an orbit , should exhibit measurable rates of orbital period change () due t…

astro-ph.SR2026

Spectroscopic follow-up of hot subdwarf variables found in ZTF -- Atmospheric and fundamental properties of radial-mode sdB pulsators

Corey W. Bradshaw, Thomas Kupfer, Alekzander R. Kosakowski +2

Hot subdwarf variables (sdBVs) that display large-amplitude (1%), short-period variability, as a result of radial-mode pulsations, have recently become objects of interest as th…

astro-ph.SR2025

Precise Parameters for Two LISA Sources

Manuel Barrientos, Mukremin Kilic, Warren R. Brown +5

We present precise parameters for two compact double white dwarf binaries, SDSS J232230.20+050942.0 (J2322+0509) and SDSS J063449.92+380352.2 (J0634+3803), with orbital periods of…