[astro-ph.GA] Carbocations are key species in interstellar chemistry, providing entry points for building larger hydrocarbons. CH+, and more recently, CH3+, have been detected. Other carbocations await detection to provide a […]
photodissociation
Posted inAnalog Studies, Astrochemistry, Astrogeology, Biochemistry & Organic Chemistry, Biosignatures & Paleobiology, Comets and Asteroids, Icy Worlds, Imaging & Spectroscopy, Status Report
CO and N2 Produced from H2O, CO2, and NH3 Cometary Ice Analogs
Hypervolatile species such as carbon monoxide (CO) and molecular nitrogen (N2) have been detected in comets, and could be used to constrain comet formation temperature conditions if their presence is […]
Posted inAnalog Studies, Atmospheres, Climate, Weather, Comets and Asteroids, Exoplanets, -moons, -comets, Habitable Zones, Impact events, Status Report
The Response of Planetary Atmospheres To The Impact Of Icy Comets II: Exo-Earth Analogues
The orbital regime of a terrestrial planet plays a significant role in shaping its atmospheric dynamics, climate, and hence potential habitability.
Posted inAstrogeology, Atmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Exoplanets, -moons, -comets, Gas Giants, Imaging & Spectroscopy, Status Report
Re-analysis of 10 Hot-Jupiter Atmospheres With Disequilibrium Chemistry Retrieval
Constraining the chemical structure of exoplanetary atmospheres is pivotal for interpreting spectroscopic data and understanding planetary evolution.
Posted inAstrochemistry, Astrogeology, Astronomy & Telescopes, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Interstellar, Status Report
OH Mid-infrared Emission as a Diagnostic of H2O UV Photodissociation. III. Application to Planet-forming Disks
JWST gives a unique access to the physical and chemical structure of inner disks (<10~au), where the majority of the planets are forming. However, the interpretation of mid-infrared (mid-IR) spectra […]