ethanol Archives - Astrobiology

The left panel shows a zoom of the GA and ethanol emission maps toward B0, B1 and B2 respectively, integrated over the velocity range [−10, 5] km s−1

Astrochemistry, Biochemistry & Organic Chemistry, Biophysics, Biosignatures & Paleobiology, Imaging & Spectroscopy, Interstellar, Status Report

Glycolaldehyde And Ethanol Toward The L1157 Outflow: Resolved Images And Constraints On Glycolaldehyde Formation

by Keith CowingOctober 24, 2025October 22, 2025

Two main formation routes have been proposed for interstellar complex organic molecules (iCOMs): on dust grain surfaces and in the gas phase. Observing such molecules in protostellar outflow shock regions […]

Optimized geometries of the adsorption complexes of ethylamine (top) and ethanol (bottom) on the crystalline water ice surface model. The corresponding computed BE(0)s are also given. -- astro-ph.GA

Astrochemistry, Biochemistry & Organic Chemistry, Biophysics, Biosignatures & Paleobiology, Imaging & Spectroscopy, Interstellar, Status Report

Binding Energies of Ethanol and Ethylamine on Interstellar Water Ices: Synergy Between Theory and Experiments

by Keith CowingJune 26, 2024June 26, 2024

Experimental and computational chemistry are two disciplines to conduct research in Astrochemistry, providing essential reference data for both astronomical observations and modeling. These approaches not only mutually support each other, […]

Difference IR spectra obtained after UV irradiation of C2H2:NH3 ice mixtures with ratios of (a) 1:0, (b) 1:0.2, (c) 1:0.5, (d) 1:1.4, and (e) 1:2.7 at 10 K for a fluence of 5.7×1017 photon cm−2 . Infrared spectra are offset for clarity. The shaded area marks the absorption features of the parent species (i.e., blue is for C2H2 and red is for NH3) now visible as negative bands. -- astro-ph.GA

Astrochemistry, Biochemistry & Organic Chemistry, Biosignatures & Paleobiology, Imaging & Spectroscopy, Interstellar, Status Report

Formation of N-bearing Complex Organic Molecules in Molecular Clouds: Ketenimine, Acetonitrile, Acetaldimine, and Vinylamine via the UV Photolysis of C2H2 Ice

by Keith CowingMay 14, 2024May 14, 2024

The solid-state C2H2 chemistry in interstellar H2O-rich ice has been proposed to explain astronomically observed complex organic molecules (COMs), including ketene (CH2CO), acetaldehyde (CH3CHO), and ethanol (CH3CH2OH), toward early star-forming […]

An international team of scientists using the NASA/ESA/CSA James Webb Space Telescope has identified a wealth of complex, carbon-containing (organic) molecules surrounding two protostars. This graphic shows the spectrum of one of the two protostars, IRAS 2A. It includes the fingerprints of acetaldehyde, ethanol, methylformate, and likely acetic acid, in the solid phase. These and other molecules detected there by Webb represent key ingredients for making potentially habitable worlds. -- ESA

Astrochemistry, Astronomy & Telescopes, Biochemistry & Organic Chemistry, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Interstellar, Press Release

Webb Telescope Finds A Wide Variety of Organic Molecules Surrounding Early-stage Protostars

by Keith CowingMarch 24, 2024March 24, 2024

An international team of astronomers using the NASA/ESA/CSA James Webb Space Telescope have discovered a variety of molecules, ranging from relatively simple ones like methane to complex compounds like acetic […]

Astronomers identified icy compounds made of complex organic molecules like alcohol and likely acetic acid, using MIRI, which was managed through launch by JPL.

Astrochemistry, Astronomy & Telescopes, Biochemistry & Organic Chemistry, Biosignatures & Paleobiology, Habitable Zones, Imaging & Spectroscopy, Origin & Evolution of Life, Press Release

Webb Space Telescope Finds Ethanol And Other Organic Molecules Surrounding Young Protostars

by Keith CowingMarch 13, 2024March 13, 2024

What do margaritas, vinegar, and ant stings have in common? They contain chemical ingredients that NASA’s James Webb Space Telescope has identified surrounding two young protostars known as IRAS 2A […]

Schematic representation of the PES of (CH3)2COH+ -- astro-ph.GA

Astrochemistry, Astronomy & Telescopes, Biochemistry & Organic Chemistry, Imaging & Spectroscopy, Interstellar, Status Report

Detection of Ethanol, Acetone, and Propanal in TMC-1: New O-bearing Complex Organics in Cold Sources

by Keith CowingMarch 28, 2023March 28, 2023

We present the detection of ethanol (C2H5OH), acetone (CH3COCH3), and propanal (C2H5CHO) toward the cyanopolyyne peak of TMC-1. These three O-bearing complex organic molecules are known to be present in […]