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The extent of formation of organic molecules in the comae of comets showing relatively high activity
DOI: 10.1016/j.icarus.2024.116374 Bibcode: 2025Icar..42716374A

Acharyya, Kinsuk; Ahmed, Sana

Comets are a rich reservoir of complex organic molecules. Ground and space-based observatories have recently greatly enhanced the cometary molecular inventory. Although these molecules' origin is believed to be the cometary nucleus, they can be partially synthesized in the coma. We studied organic molecules' nucleus versus coma origins for various…

2025 Icarus
Rosetta 1
Surface activity of H2O and CO2 on comet 103P/Hartley2 derived from EPOXI/HRI images
DOI: 10.1016/j.icarus.2025.116557 Bibcode: 2025Icar..43516557S

Tenishev, Valeriy; Fougere, Nicolas; Combi, Michael +3 more

On November 4, 2010, the EPOXI extended the mission of the Deep Impact spacecraft, flew by comet 103P/Hartley 2, and made a series of spectral images in both the infrared and the visible. The High-Resolution Instrument Infrared Spectrometer (HRI-IR) observed the comet and its surrounding coma, enabling maps in the light of the infrared emissions o…

2025 Icarus
Rosetta 0