volatile trapping Archives

Thermal desorption of a mixed H2O:CO2:CO ice film at 100:15:5 ratio recorded during a Temperature Programmed Desorption (TPD) experiment, where the release of each molecule is measured with a mass spectrometer. Carbon monoxide was traced with the 13CO isotope. Four distinct release events are visible: pure-phase CO (1), pure-phase CO2 with CO co-desorbing (2), volcano desorption of CO and CO2 (3), and water desorption with co-desorption of CO and CO2 (4). Desorption and trapping fractions of volatiles can be determined by integrating the TPD trace over discrete temperature ranges. The data are adapted from Kipfer et al. (2024a). -- astro-ph.EP

Astrochemistry, Astrogeology, Atmospheres, Climate, Weather, Exoplanets, -moons, -comets, Icy Worlds, Imaging & Spectroscopy, Status Report

Mind the Trap: Non-negligible Effect of Volatile Trapping in Ice on C/O Ratios in Protoplanetary Disks and Exoplanetary Atmospheres

by Keith CowingJune 27, 2024June 27, 2024

The ability of bulk ices (H2O, CO2) to trap volatiles has been well studied in any experimental sense, but largely ignored in protoplanetary disk and planet formation models as well […]

volatile trapping

Mind the Trap: Non-negligible Effect of Volatile Trapping in Ice on C/O Ratios in Protoplanetary Disks and Exoplanetary Atmospheres

Astrobiologist Dale Andersen’s Antarctic Field Report: Wheels Down In Cape Town

NASA Spaceline Current Awareness List #1,221 16 October 2026 (Space Life Science Research Results)

SwRI Staff Contribute To New Ideas About Origins Of Uranus And Neptune

A Voyage Into The Slow-motion World Of Earth’s Deep Seas

Rosalind Franklin Rover Stand-In Tackles A Tilted Descent