IFU Observations of Comet 3I/ATLAS = C/2025 N1 (ATLAS) using the Hobby-Eberly Telescope with the VIRUS Instrument

arXiv:2609.01785 · astro-ph.EP, astro-ph.GA · Submitted 2026-09-01 · Read on arXiv

astro-ph.EP, astro-ph.GA

Submitted: 2026-09-01

Updated: 2026-09-01

Terminology

• Calibration — 3× in this paper · explained in 7 episodes
• Accuracy — 2× in this paper · explained in 1 episode
• Adam — 2× in this paper · explained in 2 episodes
• Trace — 2× in this paper · explained in 2 episodes
• Abundance — 1× in this paper · explained in 1 episode
• Alignment — 1× in this paper · explained in 1 episode

Sources

• Perihelion observations of interstellar comet 3I/ATLAS with the IRAM 30-m telescope
• Isotopic Evidence for a Cold and Distant Origin of the Interstellar Object 3I/ATLAS
• University of Hawaii 88-inch Telescope Observations of the Interstellar Comet 3I/ATLAS: Spectrophotometric Blue-Sensitive Spectral Time Series Spanning Two Months from Discovery
• Spatial Profiles of 3I/ATLAS CN and Ni Outgassing from Keck/KCWI Integral Field Spectroscopy
• Post-Perihelion Integral Field Spectroscopy of the Interstellar Comet 3I/ATLAS
• Origin and evolution of NiI and FeI in the coma of the interstellar comet 3I/ATLAS throughout its trajectory
• Contemporaneous Optical and Near-Infrared Observations of the Interstellar Comet 3I/ATLAS Pre- and Post-Perihelion
• High nitrogen and carbon isotopic ratios in the interstellar comet 3I/ATLAS
• An Enriched Methane D/H Ratio in the Interstellar Object 3I/ATLAS
• Coma Physics of an Interstellar Object: JWST Spatial-Spectral Mapping of 3I/ATLAS
• Water D/H in 3I/ATLAS as a Probe of Formation Conditions in Another Planetary System
• Spectrophotometric evidence for a metal-bearing, carbonaceous, and pristine interstellar comet 3I/ATLAS
• Post-perihelion Coma Composition of the Interstellar Comet 3I/ATLAS from Optical Spectroscopy

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