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All-Sky Faint DA White Dwarf Spectrophotometric Standards for Astrophysical Observatories: The Complete Sample
Tim Axelrod, Abhijit Saha, Thomas Matheson +14
Hot DA white dwarfs have fully radiative pure hydrogen atmospheres that are the least complicated to model. Pulsationally stable, they are fully characterized by their effective te…
Perfecting our set of spectrophotometric standard DA white dwarfs
A. Calamida, T. Matheson, E. W. Olszewski +17
We verified for photometric stability a set of DA white dwarfs with Hubble Space Telescope magnitudes from the near-ultraviolet to the near-infrared and ground-based spectroscopy b…
Witnessing History: Rates and Detectability of Naked-Eye Milky-Way Supernovae
C. Tanner Murphey, Jacob W. Hogan, Brian D. Fields +1
The Milky Way hosts on average a few supernova explosions per century, yet in the past millennium only five supernovae have been identified confidently in the historical record. Th…
AT 2020iko: a WZ Sge-type DN candidate with an anomalous precursor event
Monika Soraisam, Sarah DeSantis, Chien-Hsiu Lee +11
The ongoing Zwicky Transient Facility (ZTF) survey is generating a massive alert rate from a variety of optical transients and variable stars, which are being filtered down to subs…
A classification algorithm for time-domain novelties in preparation for LSST alerts: Application to variable stars and transients detected with DECam in the Galactic Bulge
Monika D. Soraisam, Abhijit Saha, Thomas Matheson +8
With the advent of the Large Synoptic Survey Telescope (LSST), time-domain astronomy will be faced with an unprecedented volume and rate of data. Real-time processing of variables…
Photometry and spectroscopy of faint candidate spectrophotometric standard DA white dwarfs
A. Calamida, T. Matheson, A. Saha +14
We present precise photometry and spectroscopy for 23 candidate spectrophotometric standard white dwarfs. The selected stars are distributed in the Northern hemisphere and around t…