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5 papers · 2 filters
Gaia and IRTF abundance of A-type main belt asteroids
Marco Delbo, Chrysa Avdellidou, Marjorie Galinier +4
The Missing Mantle Problem refers to the apparent scarcity of olivine rich (A-type) asteroids in the main belt, despite expectations that such bodies should be common if differenti…
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,…
Multi-epoch spectro-photometric characterization of the minimoon 2024 PT in the visible and near-infrared
Jin Beniyama, Bryce T. Bolin, Alexey V. Sergeyev +5
2024 PT is a tiny ( m) near-Earth asteroid (NEA) discovered in August 2024. 2024 PT was gravitationally bound to the Earth-Moon system from September to November 2…
NSF-DOE Vera C. Rubin Observatory Observations of Interstellar Comet 3I/ATLAS (C/2025 N1)
Colin Orion Chandler, Pedro H. Bernardinelli, Mario Jurić +305
We report on the observation and measurement of astrometry, photometry, morphology, and activityof the interstellar object 3I/ATLAS, also designated C/2025 N1 (ATLAS) with the NSF-…
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…