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Multi-wavelength Observations of AT2019wey: a New Candidate Black Hole Low-mass X-ray Binary
Yuhan Yao, S. R. Kulkarni, Kevin B. Burdge +21
AT2019wey (SRGA J043520.9+552226, SRGE J043523.3+552234) is a transient first reported by the ATLAS optical survey in 2019 December. It rose to prominence upon detection, three mon…
Initial Characterization of Active Transitioning Centaur, P/2019 LD2 (ATLAS), using Hubble, Spitzer, ZTF, Keck, APO and GROWTH Visible & Infrared Imaging and Spectroscopy
Bryce T. Bolin, Yanga R. Fernandez, Carey M. Lisse +43
We present visible and mid-infrared imagery and photometry of temporary Jovian co-orbital comet P/2019 LD taken with HST/WFC3, Spitzer/IRAC, the GROWTH telescope network, visib…
Tidally excited oscillations in hot white dwarfs
Hang Yu, Jim Fuller, Kevin B. Burdge
We study the flux variation in helium white dwarfs (WDs) induced by dynamical tides for a variety of WD models with effective temperatures ranging from =10 kK to =26 kK. At l…
An 8.8 minute orbital period eclipsing detached double white dwarf binary
Kevin B. Burdge, Michael W. Coughlin, Jim Fuller +13
We report the discovery of ZTF J2243+5242, an eclipsing double white dwarf binary with an orbital period of just minutes, the second known eclipsing binary with an orbital pe…
Bright, months-long stellar outbursts announce the explosion of interaction-powered supernovae
Nora L. Strotjohann, Eran O. Ofek, Avishay Gal-Yam +53
Interaction-powered supernovae (SNe) explode within an optically-thick circumstellar medium (CSM) that could be ejected during eruptive events. To identify and characterize such pr…
The ZTF Source Classification Project: II. Periodicity and variability processing metrics
Michael W. Coughlin, Kevin Burdge, Dmitry A. Duev +22
The current generation of all-sky surveys is rapidly expanding our ability to study variable and transient sources. These surveys, with a variety of sensitivities, cadences, and fi…