Formaldehyde (H2CO) and methanol (CH3OH) have served as traditional tracers of the star formation process for decades. Studies of the environments which produce these species, though, have pointed to significant […]
NGC 253
Posted inAstrochemistry, Astronomy & Telescopes, Biochemistry & Organic Chemistry, Imaging & Spectroscopy, Interstellar, Radiation, Status Report
Neural Network Constraints on the Cosmic-Ray Ionization Rate and Other Physical Conditions in NGC 253 with ALCHEMI Measurements of HCN and HNC
We use a neural network model and ALMA observations of HCN and HNC to constrain the physical conditions, most notably the cosmic-ray ionization rate (CRIR, zeta), in the Central Molecular […]
Posted inAstrochemistry, Astronomy & Telescopes, Biochemistry & Organic Chemistry, Biosignatures & Paleobiology, Imaging & Spectroscopy, Interstellar, Status Report
An ALCHEMI Inspection of Sulphur-bearing Species Towards the Central Molecular Zone of NGC 253
Sulphur-bearing species are detected in various environments within Galactic star-forming regions and are particularly abundant in the gas phase of outflows and shocks, and photo-dissociation regions.
Posted inAstrochemistry, Astronomy & Telescopes, Biochemistry & Organic Chemistry, Biophysics, Biosignatures & Paleobiology, Imaging & Spectroscopy, Interstellar, Press Release
A Molecular Production Line Inside a Busy Star Factory in a Starburst Galaxy
An international research team led by Sergio Martín of the European Southern Observatory/Joint ALMA Observatory, Nanase Harada of the National Astronomical Observatory of Japan, and Jeff Mangum of the National […]
Posted inAstrochemistry, Astronomy & Telescopes, Biochemistry & Organic Chemistry, Imaging & Spectroscopy, Interstellar, Press Release
ALMA Unlocks The Chemical Secrets Of A Starburst Galaxy
Astronomers observed with the Atacama Large Millimeter/submillimeter Array (ALMA) the center of a relatively nearby galaxy known as NGC 253, which produces stars at a very high rate.