6 papers
Astrometric follow-up of near-Earth asteroid 2024 YR4 during a Torino scale level 3 alert
Marco Micheli, Maxime Devogèle, Larry Denneau +38
The discovery of 2024 YR4 presented the planetary defense community with the most significant impact threat in almost two decades, reaching level 3 on the Torino scale. The communi…
An eclipsing 8.56 minute orbital period mass-transferring binary
Emma T. Chickles, Joheen Chakraborty, Kevin B. Burdge +34
We report the discovery of ATLAS J101342.5-451656.8 (hereafter ATLAS J1013-4516), an 8.56 minute orbital period mass transferring AM Canum Venaticorum binary with mean Gaia magnitu…
Timescales of Quasar Accretion Discs from Low to High Black Hole Masses and a Turnover at the High Mass End
C. Wolf, S. Lai, J. -J. Tang +1
Characteristic time scales in the stochastic UV-optical variability of quasars may depend on the mass of their black holes, , as much as physical timescales in their ac…
The period-luminosity relation of long-period variables in the Large Magellanic Cloud observed with ATLAS
Daniel Hey, John Tonry, Benjamin Shappee +1
Period-luminosity relations of long period variables (LPVs) are a powerful tool to map the distances of stars in our galaxy, and are typically calibrated using stars in the Large M…
A gravitational wave detectable candidate Type Ia supernova progenitor
Emma T. Chickles, Kevin B. Burdge, Joheen Chakraborty +37
Type Ia supernovae, critical for studying cosmic expansion, arise from thermonuclear explosions of white dwarfs, but their precise progenitor pathways remain unclear. Growing evide…
The Variability Structure Function of the Highest-Luminosity Quasars on Short Timescales
Ji-Jia Tang, Christian Wolf, John Tonry
The stochastic photometric variability of quasars is known to follow a random-walk phenomenology on emission timescales of months to years. Some high-cadence restframe optical moni…