Results 1 to 10 of about 10,735 (261)

Future space experiment platforms for astrobiology and astrochemistry research [PDF]

open access: yesnpj Microgravity, 2023
Space experiments are a technically challenging but a scientifically important part of astrobiology and astrochemistry research. The International Space Station (ISS) is an excellent example of a highly successful and long-lasting research platform for ...
Andreas Elsaesser   +20 more
doaj   +3 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

Astrochemistry of Sub-Millimeter Sources in Orion: Studying the Variations of Molecular Tracers with Changing Physical Conditions [PDF]

open access: bronze, 2003
Cornerstone molecules (CO, H_2CO, CH_3OH, HCN, HNC, CN, CS, SO) were observed toward seven sub-millimeter bright sources in the Orion molecular cloud in order to quantify the range of conditions for which individual molecular line tracers provide ...
A. M. S. Boonman   +81 more
core   +6 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,
Weiqi Wang   +2 more
doaj   +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

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

A statistical and machine learning approach to the study of astrochemistry [PDF]

open access: greenFaraday discussions, 2023
In order to obtain a good understanding of astrochemistry, it is crucial to better understand the key parameters that govern grain-surface chemistry. For many chemical networks, these crucial parameters are the binding energies of the species.
Johannes Heyl, S. Viti, Gijs Vermariën
openalex   +3 more sources

Rotational-state-selected Carbon Astrochemistry [PDF]

open access: yesCHIMIA
The addition of individual quanta of rotational excitation to a molecule has been shown to markedly change its reactivity by significantly modifying the intermolecular interactions. So far, it has only been possible to observe these rotational effects in
Jutta Toscano
doaj   +2 more sources

Concluding remarks: Faraday Discussion on astrochemistry at high resolution [PDF]

open access: hybridFaraday discussions, 2023
Fifty years on from the first detailed chemical kinetic modelling of astronomical sources, I provide some introductory comments on the history of astrochemistry, summarise some personal views on the topics covered in this discussion meeting, and conclude
T. J. Millar
openalex   +3 more sources

Exploring outer space biophysical phenomena via SpaceLID [PDF]

open access: yesScientific 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
doaj   +2 more sources

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