Results 21 to 30 of about 10,661 (258)

Computational challenges in Astrochemistry [PDF]

open access: greenWIREs Computational Molecular Science, 2017
Cosmic evolution is the tale of progressive transition from simplicity to complexity. The newborn universe starts with the simplest atoms formed after the Big Bang and proceeds toward ‘astronomical complex organic molecules’ (astroCOMs). Understanding the chemical evolution of the universe is one of the main aims of Astrochemistry, with the starting ...
Małgorzata Biczysko   +2 more
openalex   +5 more sources

AlF-AlF Reaction Dynamics between 200 K and 1000 K: Reaction Mechanisms and Intermediate Complex Characterization. [PDF]

open access: yesMolecules, 2023
AlF is a relevant molecule in astrochemistry as a tracer of F-bearing molecules. Additionally, AlF presents diagonal Franck-Condon factors and can be created very efficiently in the lab, which makes it a prototypical molecular for laser cooling. However,
Wang W, Liu X, Pérez-Ríos J.
europepmc   +2 more sources

Chemical Reactions in Astrochemistry [PDF]

open access: bronzeSymposium - International Astronomical Union, 1992
This paper is devoted to chemistry in the gas phase dealing firstly with ion-molecule reactions at extremely low temperature. The experimental techniques that have been used in this field are shortly presented and the reactions that have been studied using the CRESU(S) method reviewed.
B. R. Rowe
openalex   +3 more sources

Cosmic-ray induced diffusion in interstellar ices

open access: yesOpen Astronomy, 2014
Cosmic rays are able to heat interstellar dust grains. This may enhance molecule mobility in icy mantles that have accumulated on the grains in dark cloud cores.
Kalvans, Juris
core   +3 more sources

Kinetic database for astrochemistry [PDF]

open access: bronzeEAS Publications Series, 2012
KIDA (for KInetic Database for Astrochemistry) is a project initiated by different communities in order to 1) improve the interaction between astrochemists and physico-chemists and 2) simplify the work of modeling the chemistry of astrophysical environments.
Valentine Wakelam, Tae Team
openalex   +3 more sources

Molecular Data Needs in Astrochemistry [PDF]

open access: bronzeSymposium - International Astronomical Union, 2000
The development of astrochemistry is inextricably linked to the generation of fundamental data. In this report, we discuss data needs in terms of astrochemical models, gas-phase kinetics, molecular excitation, optical and UV spectroscopy, solid-state chemistry, and millimeter and submillimeter wave spectroscopy.
T. J. Millar   +5 more
openalex   +4 more sources

A Vision for the Future of Astrochemistry in the Interstellar Medium by 2050. [PDF]

open access: yesACS Phys Chem Au, 2023
By 2050, many, but not nearly all, unattributed astronomical spectral features will be conclusively linked to molecular carriers (as opposed to nearly none today in the visible and IR); amino acids will have been observed remotely beyond our solar system;
Fortenberry RC.
europepmc   +2 more sources

FAUST VI. VLA1623−2417 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   +28 more
openalex   +3 more sources

Exploring outer space biophysical phenomena via SpaceLID. [PDF]

open access: yesSci Rep, 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)
Wang S   +6 more
europepmc   +2 more sources

The Astrochemistry Low-energy Electron Cross-Section (ALeCS) database I. Semi-empirical electron-impact ionization cross-section calculations and ionization rates [PDF]

open access: greenAstronomy & Astrophysics, 2023
Electron-molecule interaction is a fundamental process in radiation-driven chemistry in space, from the interstellar medium to comets. Therefore, knowledge of interaction cross sections is key.
Brandt A. L. Gaches   +8 more
openalex   +3 more sources

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