The N2 and CO-rich and water-depleted comet C/2016 R2 (Pan-STARRS) (hereafter `C/2016 R2′) is a unique comet for detailed spectroscopic analysis. We aim to explore the associated photochemistry of parent […]
astrochemistry
Posted inAstrochemistry, Press Release
Seeds of Life in Space (SOLIS) V. Methanol and acetaldehyde in the protostellar jet-driven shocks L1157-B0 and B1
Aim: In the past, observations of protostellar shocks have been able to set constraints on the formation route of formamide (NH2CHO), exploiting its observed spatial distribution and comparison with astrochemical […]
Posted inAstrochemistry, Press Release
Evaporative Cooling Of Icy Interstellar Grains
Context. While radiative cooling of interstellar grains is a well-known process, little detail is known about the cooling of grains with an icy mantle that contains volatile adsorbed molecules. Aims. […]
Posted inAstrochemistry, Press Release
Fragmentation And Isomerization of Polycyclic Aromatic Hydrocarbons in the Interstellar Medium: Coronene As A Case Study
Aims. Due to the limitations of current computational technology, the fragmentation and isomerization products of vibrationally-excited polycyclic aromatic hydrocarbon (PAH) molecules and their derivatives are poorly studied. In this work, […]
Posted inAstrochemistry, Press Release
Clouds Will Likely Prevent The Detection Of Water Vapor In JWST Transmission Spectra Of Terrestrial Exoplanets
We are on the verge of characterizing the atmospheres of terrestrial exoplanets in the habitable zones of M dwarf stars. Due to their large planet-to-star radius ratios and higher frequency […]
Posted inAstrochemistry, Press Release
Hydrodynamic Escape Of Water Vapor Atmospheres Near Very Active Stars
When exposed to the high energy X-ray and ultraviolet radiation of a very active star, water vapor in the upper atmospheres of planets can be photodissociated and rapidly lost to […]
Posted inAstrochemistry, Press Release
Carbon Cocoons Surround Growing Galaxies
Researchers have discovered gigantic clouds of gaseous carbon spanning more than a radius of 30,000 light-years around young galaxies using the Atacama Large Millimeter/submillimeter Array (ALMA). This is the first […]
Posted inAstrochemistry, Astronomy & Telescopes, Biosignatures & Paleobiology, Comets and Asteroids, Icy Worlds, Imaging & Spectroscopy, Interstellar, Press Release
FLAMINGOS-2 Infrared Photometry of 2I/Borisov
2I/Borisov is the second interstellar object (ISO) after ‘Oumuamua (Meech et al. 2017), but differs from ‘Oumuamua drastically with its extensive cometary activity. A key ingredient to understand the nature […]
Posted inAstrochemistry, Astronomy & Telescopes, Biosignatures & Paleobiology, Comets and Asteroids, Icy Worlds, Imaging & Spectroscopy, Interstellar, Press Release
Low Resolution Optical Spectra and Diatomic Carbon Detections of 2I/Borisov
2I/Borisov is the first-ever observed interstellar comet (and the second detected interstellar object). It was discovered on 30 August 2019 and has a heliocentric orbital eccentricity of ~ 3.35, corresponding […]
Posted inAstrochemistry, Press Release
Mass-Metallicity Trends in Transiting Exoplanets from Atmospheric Abundances of H2O, Na, and K
Atmospheric compositions can provide powerful diagnostics of formation and migration histories of planetary systems. We investigate constraints on atmospheric abundances of H2O, Na, and K, in a sample of transiting […]