6 papers
Water ice in the debris disk around HD 181327
Chen Xie, Christine H. Chen, Carey M. Lisse +13
Debris disks are exoplanetary systems that contain planets, minor bodies (i.e., asteroids, Kuiper belt objects, comets, etc.), and micron-sized debris dust. Since water ice is the…
Apache Point rapid response characterization of primitive imminent impactor 2024 RW
Carl Ingebretsen, Bryce T. Bolin, Robert Jedicke +6
Imminent impactors may be detected only a few hours before their impact with Earth, providing a brief opportunity to characterize them before impact. We describe the characterizati…
Silicate clouds and a circumplanetary disk in the YSES-1 exoplanet system
Kielan K. W. Hoch, Melanie Rowland, Simon Petrus +26
Young exoplanets provide a critical link between understanding planet formation and atmospheric evolution. Direct imaging spectroscopy allows us to infer the properties of young, w…
Interstellar comet 3I/ATLAS: discovery and physical description
Bryce T. Bolin, Matthew Belyakov, Christoffer Fremling +18
We describe the physical characteristics of interstellar comet 3I/ATLAS, discovered on 2025 July 1 by the Asteroid Terrestrial-impact Last Alert System. The comet has eccentricity,…
Palomar and Apache Point Spectrophotometry of Interstellar Comet 3I/ATLAS
Matthew Belyakov, Christoffer Fremling, Matthew J. Graham +7
On July 1st 2025 the third interstellar object, 3I/ATLAS or C/2025 N1 (ATLAS), was discovered, with an eccentricity of and perihelion of au. We…
The discovery and characterization of minimoon 2024 PT
Bryce T. Bolin, Larry Denneau, Laura-May Abron +4
Minimoons are asteroids that become temporarily captured by the Earth-Moon system. We present the discovery of 2024 PT, a minimoon discovered by the Asteroid Terrestrial-impact…