Results 31 to 40 of about 3,913 (202)
Gas-phase Ortho-to-para Ratio of Formaldehyde Formed at Low Temperatures in Laboratory Ices
The Astrophysical Journal Letters, 2023 The ortho-to-para ratio (OPR) of formaldehyde (H _2 CO) has been used as a probe to estimate the formation temperature of molecules in interstellar, circumstellar, and cometary environments, relying on the assumption that nuclear spin conversion is ...
K. M. Yocum +4 more
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The Planetary Science Journal, 2023 Infrared (IR) spectra are needed for both laboratory and observational studies of extraterrestrial ices, both within the solar system, such as for trans-Neptunian objects, comets, and Titan, and in the interstellar medium.
Reggie L. Hudson, Perry A. Gerakines
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Molecules, 2023 A microwave-promoted multicomponent reaction of isatins, α-amino acids and 1,4-dihydro-1,4-epoxynaphthalene is achieved under environmentally friendly conditions, delivering oxygen-bridged spirooxindoles within 15 min in good to excellent yields.
Yaojing Shi, Hua Zhao, Yufen Zhao
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Exploring outer space biophysical phenomena via SpaceLID
Scientific Reports, 2023 Extensive investigations in outer space have revealed not only how life adapts to the space environment, but also that interesting biophysical phenomena occur. These phenomena affect human health and other life forms (animals, plants, bacteria, and fungi)
Shanshan Wang +6 more
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Anatomy of Orion Molecular Clouds—The Astrochemistry Perspective/Approach
Frontiers in Astronomy and Space Sciences, 2021 The Orion molecular cloud (OMC) complex is the nearest and perhaps the best-studied giant molecular cloud complex within which low-mass and massive star formation occur. A variety of molecular species, from diatomic molecules to complex organic molecules
Dipen Sahu, Sheng-Yuan Liu, Tie Liu
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Astrochemistry: Synthesis and Modelling [PDF]
, 2012 We discuss models that astrochemists have developed to study the chemical composition of the interstellar medium. These models aim at computing the evolution of the chemical composition of a mixture of gas and dust under as- trophysical conditions. These conditions, as well as the geometry and the physical dynamics, have to be adapted to the objects ...
Wakelam, Valentine +2 more
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Identification of solid N2O in interstellar ices using open JWST data
Astronomy & AstrophysicsContext. Only six molecules containing an N-O bond are detected in the gaseous phase of the interstellar medium. One of them is nitrous oxide (N2O), which was unsuccessfully searched for in solid form since the launch of the Infrared Space Observatory ...
Karteyeva V. +4 more
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Database of space life investigations and bioinformatics of microbiology in extreme environments
Frontiers in Microbiology, 2022 Biological experiments performed in space crafts like space stations, space shuttles, and recoverable satellites has enabled extensive spaceflight life investigations (SLIs).
Junyong Wang +11 more
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Computational Astrochemistry and Molecular Astrophysics
, 2014 Astrochemistry and molecular astrophysics are interdisciplinary fields involving chemistry, physics, and astronomy and aiming at the understanding of the chemical evolution of the universe.
PUZZARINI, CRISTINA, C. Puzzarini
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Infrared spectra of methane-containing ice mixtures for JWST data analyses
Astronomy & AstrophysicsContext. Solid methane (CH4) is an important molecule in interstellar and planetary environments, serving as a precursor to complex organic compounds, and it is a potential biosignature in exoplanetary studies.
Karteyeva V. +4 more
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