In recent years, a number of metal-containing, carbon-chain species have been detected in the external circumstellar envelope of the carbon-rich AGB star IRC+10216.
circumstellar envelope
Posted inAstrochemistry, Astronomy & Telescopes, Biochemistry & Organic Chemistry, Biophysics, Biosignatures & Paleobiology, Imaging & Spectroscopy, Interstellar, Status Report
The Impact Of Surface Acetylene Cyclotrimerization On The Abundance Of Aromatic Hydrocarbons In Carbon-rich Asymptotic Giant Branch Stars
This work investigates the catalytic role of dust grains in forming aromatic hydrocarbons via acetylene cyclotrimerization on their surfaces within the circumstellar envelopes of carbon-rich asymptotic giant branch (AGB) stars.
Posted inAstrochemistry, Astronomy & Telescopes, Biochemistry & Organic Chemistry, Biophysics, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Interstellar, Status Report
Charting Circumstellar Chemistry of Carbon-rich Asymptotic Giant Branch Stars. II. Abundances and Spatial Distributions of CS
The circumstellar envelopes (CSEs) of asymptotic giant branch (AGB) stars harbour a rich variety of molecules and are sites of complex chemistry.
Posted inAstrochemistry, Biochemistry & Organic Chemistry, Biosignatures & Paleobiology, Imaging & Spectroscopy, Interstellar, Status Report
The Role of Acetylene in the Chemical Evolution of Carbon Complexity
Acetylene, among the multitude of organic molecules discovered in space, plays a distinct role in the genesis of organic matter.