works on

From the 1 of 8 linked papers with an AI index.

activity
20242026
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8 papers

astro-ph.EP2026

University of Hawaii 88-inch Telescope Observations of the Interstellar Comet 3I/ATLAS: Spectrophotometric Blue-Sensitive Spectral Time Series Spanning Two Months from Discovery

W. B. Hoogendam, D. Kuesters, B. J. Shappee +22

The paper presents blue‑sensitive spectrophotometric observations of the interstellar comet 3I/ATLAS over two months, reporting its early UV spectrum, variable spectral slopes, com…

astro-ph.EP2026

JCMT Constraints on the Early-Time HCN and CO Emission and HCN Temporal Evolution of 3I/ATLAS

Jason T. Hinkle, Bin Yang, Karen J. Meech +4

Interstellar objects (ISOs), particularly those with cometary activity, provide unique insight into the primordial physical and chemical conditions present during the formation of…

astro-ph.EP2026

Contemporaneous Optical and Near-Infrared Observations of the Interstellar Comet 3I/ATLAS Pre- and Post-Perihelion

Kyle Medler, Willem B. Hoogendam, Christopher Ashall +12

Interstellar objects provide a unique view into the formation of other star systems. Here we present spectroscopic observations of the recently discovered interstellar object 3I/AT…

astro-ph.EP2026

Post-Perihelion Integral Field Spectroscopy of the Interstellar Comet 3I/ATLAS

Willem B. Hoogendam, David O. Jones, Bin Yang +10

The environs of other stellar systems may be directly probed by analyzing the cometary activity of interstellar objects. The recently discovered interstellar object 3I/ATLAS was th…

astro-ph.EP2025

Spatial Profiles of 3I/ATLAS CN and Ni Outgassing from Keck/KCWI Integral Field Spectroscopy

W. B. Hoogendam, B. J. Shappee, J. J. Wray +11

Cometary activity from interstellar objects provides a unique window into the environs of other stellar systems. We report blue-sensitive integral field unit spectroscopy of the in…

astro-ph.EP2025

Spectroscopic Characterization of Interstellar Object 3I/ATLAS: Water Ice in the Coma

Bin Yang, Karen J. Meech, Michael Connelley +2

We present optical and near-infrared spectroscopy of the interstellar object 3I/ATLAS, obtained with Gemini-S/GMOS and NASA IRTF/SpeX on 2025 July 5 and July 14. The optical spectr…