IRAS20126+4104 Archives

Spectrally integrated line flux maps for 3I/ATLAS observed using JWST NIRSpec: (a) H2O at 2.7 µm, (b) CO2 at 4.3 µm, (c) CO at 4.7 µm. Image axes are aligned with the equatorial (RA/decl.) grid. Molecular emission has been isolated by subtracting a polynomial fit to the adjacent continuum. Spatial coordinates are with respect to the brightest pixel in each map (the pseudo-nucleus). Inset panels (upper right) show the continuum-subtracted spectra within the image integration wavelength range, spatially integrated within a 3′′ diameter circular aperture centered on the pseudo-nucleus (corresponding to 3,900 km at the 1.8 au distance of the comet from the telescope). Lower left corner shows the direction of the (sky-projected) comet-Sun (S) and nucleus velocity (v) vectors. -- astro-ph.EP

Astrochemistry, Astrogeology, Astronomy & Telescopes, Biochemistry & Organic Chemistry, Biosignatures & Paleobiology, Comets and Asteroids, Icy Worlds, Imaging & Spectroscopy, Interstellar, Status Report

Isotopic Evidence For A Cold And Distant Origin Of The Interstellar Object 3I/ATLAS

by Keith CowingMarch 17, 2026March 17, 2026

Interstellar objects provide the only directly observable samples of icy planetesimals formed around other stars, and can therefore provide insight into the diversity of physical and chemical conditions occurring during […]

IRAS20126+4104

Isotopic Evidence For A Cold And Distant Origin Of The Interstellar Object 3I/ATLAS

Planetesimal Formation Across the Stellar Mass Spectrum and its Influence on Exoplanet-Inherited Volatile Budgets

Astronaut Training For Underground Science Expeditions

Achieving Efficient Broadband Spatial Filtering For LIFE: Status And Plan

A Comprehensive Study Of Comet 67P/Churyumov-Gerasimenko In The 2021/2022 Apparition. II. Colorimetry, Polarimetry, Modeling

Mars Express And Psyche Same Day Imagery of Mars