dimethyl sulfide Archives - Page 2 of 2 - Astrobiology

K2-18b - Cambridge University

Astrochemistry, Astrogeology, Astronomy & Telescopes, Atmospheres, Climate, Weather, Biochemistry & Organic Chemistry, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Habitable Zones, Imaging & Spectroscopy, Press Release

Strongest Hints Yet Of Biological Activity Outside Our Solar System

by Keith CowingApril 17, 2025April 17, 2025

Astronomers have detected the most promising signs yet of a possible biosignature outside the solar system, although they remain cautious. Using data from the James Webb Space Telescope (JWST), the […]

The mid-infrared transmission spectrum of K2-18 b obtained with the JWST MIRI LRS instrument. The data points with error bars (in brown) show the observed spectrum as described in section 2.1. The horizontal errorbars correspond to the spectral bin width. The dark blue curve denotes the median retrieved spectral fit, while the two lighter shaded regions denote the 1- and 2-σ intervals. The prominent features of DMDS and DMS are identified. Both molecules have overlapping spectral features between 6.8-8 µm, with broader features between ∼9-10 µm for DMS and ∼10-11 µm for DMDS. The individual spectral contributions of these molecules are shown in Figure 3. -- astro-ph.EP

Astrochemistry, Astronomy & Telescopes, Atmospheres, Climate, Weather, Biochemistry & Organic Chemistry, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Status Report, Water/Hycean Worlds & Oceanography

New Constraints On DMS and DMDS In The Atmosphere Of K2-18 b From JWST MIRI

by Keith CowingApril 17, 2025April 17, 2025

The sub-Neptune frontier has opened a new window into the rich diversity of planetary environments beyond the solar system.

dimethyl sulfide - WIkipedia

Astrochemistry, Astronomy & Telescopes, Biochemistry & Organic Chemistry, Biosignatures & Paleobiology, Comets and Asteroids, Icy Worlds, Interstellar, Status Report

On the Abiotic Origin of Dimethyl Sulfide: Discovery of DMS in the Interstellar Medium

by Keith CowingFebruary 10, 2025February 10, 2025

Following the discovery of dimethyl sulfide (CH3SCH3, DMS) signatures in comet 67P/Churyumov-Gerasimenko, we report the first detection of this organosulfur species in the interstellar medium, during the exploration of an […]

Dimethyl Sulfide -- Wikipedia

Astrochemistry, Astrogeology, Atmospheres, Climate, Weather, Biochemistry & Organic Chemistry, Biosignatures & Paleobiology, Comets and Asteroids, Exoplanets, -moons, -comets, Icy Worlds, Imaging & Spectroscopy, Status Report

Evidence For Abiotic Dimethyl Sulfide In Cometary Matter

by Keith CowingOctober 16, 2024October 16, 2024

Technological progress related to astronomical observatories such as the recently launched James Webb Space Telescope (JWST) allows searching for signs of life beyond our Solar System, namely in the form […]

dimethyl sulfide (DMS) -- Wikipedia

Astrochemistry, Atmospheres, Climate, Weather, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Habitable Zones, Imaging & Spectroscopy, Status Report

Carbon-bearing Molecules In A Possible Hycean Atmosphere

by Keith CowingSeptember 17, 2023September 17, 2023

The search for habitable environments and biomarkers in exoplanetary atmospheres is the holy grail of exoplanet science. The detection of atmospheric signatures of habitable Earth-like exoplanets is challenging due to […]