In this study, we investigate interstellar absorption lines along the line of sight toward the galactic low-mass X-ray binary Cygnus X-2. We combine absorption line data obtained from high-resolution X-ray […]
Interstellar
Posted inAstrochemistry, Astronomy & Telescopes, Biochemistry & Organic Chemistry, Interstellar, Status Report
Spin-Forbidden Formation of Amide Molecules in the Interstellar Medium
In this study, two-state spin-forbidden mechanisms are proposed for the barrierless formation of amide isomers in the C2H5NO family of molecules. This family belongs to the first level of complexity […]
Posted inAstrochemistry, Astronomy & Telescopes, Biochemistry & Organic Chemistry, Biophysics, Imaging & Spectroscopy, Interstellar, Status Report
Detection Of Possible Glycine Precursor Molecule Methylamine Towards The Hot Molecular Core G358.93−0.03 MM1
The search for the simplest amino acid, glycine (NH2CH2COOH), in the interstellar medium (ISM), has become a never-ending story for astrochemistry and astrophysics researchers because that molecule plays a possible […]
Posted inAstrochemistry, Astronomy & Telescopes, Biochemistry & Organic Chemistry, Biophysics, Imaging & Spectroscopy, Interstellar, Status Report
Hydrogenated Amorphous Carbon Grains As An Alternative Carrier Of The 9−13μm Plateau Feature In The Fullerene Planetary Nebula Tc 1
Fullerenes have been observed in several astronomical objects since the discovery of C60 in the mid-infrared (mid-IR) spectrum of the planetary nebula (PN) Tc 1. It has been suggested that […]
Posted inAstrochemistry, Astronomy & Telescopes, Biochemistry & Organic Chemistry, Biosignatures & Paleobiology, Interstellar, Press Release
Interstellar Detection Of O-protonated Carbonyl Sulfide, HOCS+
We present the first detection in space of O-protonated carbonyl sulfide HOCS+, in the midst of an ultradeep molecular line survey toward the G+0.693-0.027 molecular cloud.
Posted inAstrochemistry, Astrogeology, Astronomy & Telescopes, Biosignatures & Paleobiology, Comets and Asteroids, Icy Worlds, Imaging & Spectroscopy, Interstellar, Status Report
Pre-perihelion Monitoring of Interstellar Comet 2I/Borisov
The discovery of interstellar comet 2I/Borisov offered the unique opportunity to obtain a detailed analysis of an object coming from another planetary system, and leaving behind material in our interplanetary […]
Posted inAI - Data - Apps - Cybernetics, Astrochemistry, Imaging & Spectroscopy, Interstellar, Status Report
HYACINTH: HYdrogen And Carbon chemistry In The INTerstellar Medium In Hydro Simulations
Aims. We present a new sub-grid model, HYACINTH — HYdrogen And Carbon chemistry in the INTerstellar medium in Hydro simulations, for computing the non-equilibrium abundances of H2 and its carbon-based […]
Posted inAstrochemistry, Astrogeology, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Interstellar, Meteorites & Asteroids, Origin & Evolution of Life, Panspermia, Status Report
Cosmic Dust Fertilization Of Glacial Prebiotic Chemistry On Early Earth
Earth’s surface is deficient in available forms of many elements considered limiting for prebiotic chemistry. In contrast, many extraterrestrial rocky objects are rich in these same elements. Limiting prebiotic ingredients […]
Posted inAI - Data - Apps - Cybernetics, Astronomy & Telescopes, Interstellar, Press Release, SETI & Technosignatures, Stellar Cartography
SETI: Finding The ET Signal From The Cosmic Noise
This paper highlights a methodological approach designed to enhance the search for extraterrestrial intelligence (SETI) by hypothesizing that a transmission technosignature would likely have two features: 1) be wideband in […]
Posted inAstrochemistry, Astronomy & Telescopes, Biochemistry & Organic Chemistry, Biosignatures & Paleobiology, Imaging & Spectroscopy, Interstellar, Origin & Evolution of Life, Status Report
Interstellar Ices: A Factory of the Origin-of-Life Molecules
In the past few years, molecular discovery in space has made tremendous progress in terms of both the number of identified molecules and their complexity.