Silver Dollar Galaxy Archives

Schematic (not to scale) showing the proposed origin of emission of the S-bearing species towards the CMZ of NGC 253 (Sec. 6.3) and summarising the main results for the physical properties (Tgas, ngas) of the gas emitting the S-bearing species (Sec 5.2). We illustrate two scenarios, for a giant molecular cloud in the outer (left) CMZ and inner (right) CMZ. The timescale for the shocks induced by star-formation are from Huang et al. (2023). The temperatures and densities reported are averaged over the regions and variations could be present in some of the regions. -- astro-ph.GA

Astrochemistry, 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

by Keith CowingMay 15, 2024May 15, 2024

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.

Silver Dollar Galaxy

An ALCHEMI Inspection of Sulphur-bearing Species Towards the Central Molecular Zone of NGC 253

Rethinking The Origin Of Life At Seafloor Hydrothermal Vents

Proto-Biosignatures and Planetary Geochemical Metabolism: A Thermodynamic Screening Model of Prebiotic Geochemical Organization

Cultivation Of Halophilic Archaea In Shallow Subsurface Martian Conditions Has Implications For Extant Life On Mars

Roman Space Telescope Leaves Earth

Atmospheric Retrieval of Combined JWST, HST, and Ground-Based Observations Reveals a Featureless Transmission Spectrum for GJ 1132 b