Results 21 to 30 of about 10,794 (262)

Astrochemistry of dimethyl ether [PDF]

open access: bronzeAstronomy & Astrophysics, 2005
Dimethyl ether (DME, CH 3 OCH 3 ) is one of the largest organic molecules detected in the interstellar gas and shows high abundances in star-forming regions, known as hot molecular cores. The observed DME might be formed on grains or by secondary gas phase reactions from a precursor molecule, which in turn was sublimed into the gas phase from the grain
Z. Peeters   +6 more
openalex   +3 more sources

FAUST VI. VLA 1623–2417 B: A new laboratory for astrochemistry around protostars on 50 au scale [PDF]

open access: greenMonthly notices of the Royal Astronomical Society, 2022
The ALMA interferometer, with its unprecedented combination of high-sensitivity and high-angular resolution, allows for (sub-)mm wavelength mapping of protostellar systems at Solar System scales.
C. Codella   +27 more
semanticscholar   +3 more sources

Laboratory surface astrochemistry experiments [PDF]

open access: greenReview of Scientific Instruments, 2015
Although several research groups have studied the formation of H2 on interstellar dust grains using surface science techniques, few have explored the formation of more complex molecules. A small number of these reactions produce molecules that remain on the surface of interstellar dust grains and, over time, lead to the formation of icy mantles.
Victoria L. Frankland   +4 more
openalex   +6 more sources

The Ice Chamber for Astrophysics-Astrochemistry (ICA): A new experimental facility for ion impact studies of astrophysical ice analogs. [PDF]

open access: greenReview of Scientific Instruments, 2021
The Ice Chamber for Astrophysics-Astrochemistry (ICA) is a new laboratory end station located at the Institute for Nuclear Research (Atomki) in Debrecen, Hungary.
P. Herczku   +13 more
semanticscholar   +3 more sources

Grain Surface Models and Data for Astrochemistry [PDF]

open access: yesSpace Science Reviews, 2017
The cross-disciplinary field of astrochemistry exists to understand the formation, destruction, and survival of molecules in astrophysical environments. Molecules in space are synthesized via a large variety of gas-phase reactions, and reactions on dust ...
A. Al-Halabi   +284 more
core   +12 more sources

Astrochemistry and Astrophotonics for an Antarctic Observatory [PDF]

open access: yesEAS Publications Series, 2009
Due to its location and climate, Antarctica offers unique conditions for long-period observations across a broad wavelength regime, where important diagnostic lines for molecules and ions can be found, that are essential to understand the chemical ...
A. Kelz   +17 more
core   +3 more sources

The Astrochemistry Implications of Quantum Chemical Normal Modes Vibrational Analysis

open access: greenGalaxies, 2018
Understanding the molecular vibrations underlying each of the unknown infrared emission (UIE) bands (such as those found at 3.3, 3.4, 3.5, 6.2, 6.9, 7.7, 11.3, 15.8, 16.4, 18.9 μ m) observed in or towards astronomical objects is a vital link to
SeyedAbdolreza Sadjadi   +1 more
doaj   +3 more sources

Grand Challenges in Astrochemistry [PDF]

open access: yesFrontiers in Astronomy and Space Sciences, 2020
n ...
Cristina Puzzarini, Cristina Puzzarini
doaj   +4 more sources

Aromatic Hydrocarbons, Diamonds, and Fullerenes in Interstellar Space: Puzzles to be Solved by Laboratory and Theoretical Astrochemistry [PDF]

open access: green, 2000
New research is presented, and previous research is reviewed, on the emission and absorption of interstellar aromatic hydrocarbons. Emission from aromatic hydrocarbons dominate the mid-infrared emission of many galaxies, including our own Milky Way ...
Allamandola   +82 more
core   +4 more sources

Is Phenylnitrene a Missing Link in the Formation of Polycyclic Aromatic Nitrogen Heterocycles? [PDF]

open access: yesAngew Chem Int Ed Engl
A new formation pathway for polycyclic aromatic nitrogen heterocycles (PANHs) has been found. The reaction of phenylnitrene and the propargyl radical leads to quinoline, proving that nitrenes are suitable precursors for nitrogen incorporation mechanisms.
Arns R   +6 more
europepmc   +2 more sources

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