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Searches after Gravitational Waves Using ARizona Observatories (SAGUARO): Observations and Analysis from Advanced LIGO/Virgo's Third Observing Run
K. Paterson, M. J. Lundquist, J. C. Rastinejad +34
With the conclusion of the third observing run for Advanced LIGO/Virgo (O3), we present a detailed analysis of both triggered and serendipitous observations of 17 gravitational wav…
Peeking Between the Pulses: The Far-UV Spectrum of the Previously Unseen White Dwarf in AR Scorpii
Peter Garnavich, Colin Littlefield, Maxim Lyutikov +1
The compact object in the interacting binary AR Sco has widely been presumed to be a rapidly rotating, magnetized white dwarf (WD), but it has never been detected directly. Isolati…
Host Galaxy Mass Combined with Local Stellar Age Improve Type Ia Supernovae Distances
B. M. Rose, D. Rubin, L. Strolger +1
Type Ia supernovae (SNe Ia) are standardizable candles, but for over a decade, there has been a debate on how to properly account for their correlations with host galaxy properties…
Testing Progenitor Models Using the Late-Time Light Curve of Supernova 1992A
Cian Roche, Peter Garnavich
The dominant radioactive energy source powering Type Ia supernova light curves is expected to switch from the decay of Co to Co at very late epochs. We use archival H…
Evolution of the Quiescent Disk surrounding a Superoutburst of the Dwarf Nova TW Virginis
Zhibin Dai, Paula Szkody, Peter M. Garnavich
Portions of the Kepler K2 Short Cadence light curve of the dwarf nova (DN) TW Vir at quiescence are investigated using light curve modeling. The light curve was separated into 24 s…
Identification of Orbital Eclipses in LAMOST J024048.51+195226.9, a Candidate AE Aqr-type Cataclysmic Variable Star
Colin Littlefield, Peter Garnavich
AE Aqr objects are a class of cataclysmic variable stars in which the rapidly rotating magnetosphere of the white dwarf (WD) primary centrifugally expels most infalling gas before…