![Column density maps of 13CO2, CO and OCN− ice (panel I, II and III, respectively). 12CO2 column densities are derived from 13CO2 column densities. Panel IV shows the ratio between the 4.38 µm and 4.39 µm peak of the 13CO2 ice feature. A higher ratio indicates higher degree of CO2 ice segregation. The axes are shown on astronomical unit scales. Pixelated areas especially in the north and south of the maps as well as the edges are caused by low signal-to-noise levels. -- [astro-ph.SR]](https://i0.wp.com/astrobiology.com/wp-content/uploads/2026/10/Mapping.png?resize=1200%2C718&ssl=1)
[astro-ph.SR] The composition of planets and their atmospheres is largely determined by the formation environment of the planet. This environment is pre-determined during early stages when the protostar is still […]
L1527
Posted inAstrochemistry, 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
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 […]
Posted inAstrochemistry, Astronomy & Telescopes, Imaging & Spectroscopy, Status Report
How Widespread Are Aromatic Cycles In Cold Clouds?
We report the detection of large hydrocarbon cycles toward several cold dense clouds. We observed four sources (L1495B, Lupus-1A, L483, and L1527) in the Q band (31-50 GHz) using the […]