chondritic planetesimals Archives

Evolutions of fiducial planetesimals with different chondritic compositions. Each plot is the contour of one quantity across time and radial location. Note that the total radius decreases due to sintering. From top row to bottom: EH, OC, CV, and CI bodies. Physical quantities from left to right: (i) temperature, (ii) condensed + gaseous C abundance normalized to the initial reservoir; > 1 relative abundance occurs due to sintering concentrating C, (iii) porosity and (iv) gas pressure; hatched areas are completely sintered with no meaningful gas pressure. -- astro-ph.EP

Astrochemistry, Astrogeology, Meteorites & Asteroids, Status Report

Modeling Carbon Outgassing From Chondritic Planetesimals

by Keith CowingJune 1, 2026June 1, 2026

The thermochemical evolution of planetesimals is an underprobed stage of volatile delivery to terrestrial planets during their formation, and may contribute to the volatile depletion of the Earth relative to […]

chondritic planetesimals

Modeling Carbon Outgassing From Chondritic Planetesimals

Thermal Evolution of Lava Planets Across System Ages: Predictions for Hell of a Survey

Thioacetaldehyde (CH3CHS) On Interstellar Ices: A Key Molecule To Unravel Two Chemical Dichotomies In The ISM

Interstellar Disparity: N- vs O-bearing Molecules: A Multidisciplinary Perspective across Interstellar Environments

Water Cloud and Chemical Modulations in the Coldest Brown Dwarf

A Binary Flux Calibrator Reveals the Scientific Potential of Short-integration JWST MIRI Imaging to Directly Detect sub-Jupiter Exoplanets