Results 101 to 110 of about 3,228 (211)

Division VI/Commission 34/Working Group Astrochemistry [PDF]

open access: yes, 2011
The study of molecules in space, known as astrochemistry or molecular astrophysics, is a rapidly growing field. Molecules exist in a wide range of environments in both gaseous and solid form, from our own solar system to the distant early universe.
van Dishoeck, E. F.   +16 more
core  

Observational astrochemistry: The quest for interstellar molecules

open access: yes, 2012
Over 160 molecular species, not counting isotopologues, have been identified in circumstellar envelopes and interstellar clouds. These species have revealed a wealth of familiar, as much as exotic molecules and in complex organic (and silicon) compounds,
M. Guélin, Guélin M.
core   +1 more source

Strong parameter hierarchy in the interstellar phosphorus chemical network

open access: yesFrontiers in Astronomy and Space Sciences
Phosphorus-bearing molecules are fundamental for life on Earth, yet their astrochemical origins remain poorly understood. Their formation in the interstellar medium has been challenging to elucidate due to limited spectroscopic detections and the ...
Marina Fernández-Ruz   +7 more
doaj   +1 more source

Thermal Synthesis of Carbamic Acid and Its Dimer in Interstellar Ices: A Reservoir of Interstellar Amino Acids

open access: yesACS Central Science, 2023
Joshua H. Marks   +6 more
doaj   +1 more source

Infrared Spectroscopy of RNA Nucleosides in a Wide Range of Temperatures

open access: yesLife
The RNA world hypothesis suggests that early cellular ancestors relied solely on RNA molecules for both genetic information storage and cellular functions.
Susana Iglesias-Groth   +2 more
doaj   +1 more source

Laboratory Astrochemistry: Gas-Phase Processes

open access: yes, 2011
A major aim of astrochemistry is to explain the nature and abundance of the molecules observed in the interstellar medium (ISM). Three kinds of activity are involved: (a) the spectroscopic identification of the species that are present in the ISM; (b ...
Ian W.M. Smith
core   +1 more source

Cretaceous-Paleogene boundary (KPB) Fish Clay at Højerup (Stevns Klint, Denmark): Ni, Co, and Zn of the black marl

open access: yesGeologica Acta, 2009
The black marl of the Fish Clay at Højerup is mainly made up of biogenic calcite and cheto-Mg-smectite. We suggest that the formation of the smectite occurred during the latest Maastrichtian (or earlier) and that it represents a short period of rapid ...
P.I. PREMOVIC   +2 more
doaj  

Formation of All Three C2H4O Isomers—Ethylene Oxide (c-C2H4O), Acetaldehyde (CH3CHO), and Vinyl Alcohol (CH2CHOH)—in Ethanol-containing Interstellar Analog Ices

open access: yesThe Astrophysical Journal
Oxygen-containing complex organic molecules are key precursors to biorelevant compounds fundamental for the origins of life. However, the untangling of their interstellar formation mechanisms has just scratched the surface, especially for oxygen ...
Jia Wang   +3 more
doaj   +1 more source

High-resolution Study of the Outflow Activity and Chemical Environment of Chamaeleon-MMS1

open access: yesThe Astrophysical Journal
The earliest stages of low-mass star formation are unclear, with the first hydrostatic core (FHSC) as the transition stage between a prestellar and protostellar core.
Veronica Allen   +5 more
doaj   +1 more source

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