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Interrelations Between Astrochemistry and Galactic Dynamics [PDF]

open access: goldFrontiers in Astronomy and Space Sciences, 2021
This paper presents a review of ideas that interconnect astrochemistry and galactic dynamics. Since these two areas are vast and not recent, each one has already been covered separately by several reviews.
Edgar Mendoza   +8 more
doaj   +2 more sources

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   +2 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

Astrochemistry of sub-millimeter sources in Orion [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 ...
Doug Johnstone   +2 more
openalex   +5 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.
Kalvāns Juris
doaj   +3 more sources

Rotational-state-selected Carbon Astrochemistry

open access: diamondCHIMIA
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   +3 more sources

Systems Astrochemistry: A New Doctrine for Experimental Studies

open access: yesFrontiers in Astronomy and Space Sciences, 2021
Laboratory experiments play a key role in deciphering the chemistry of the interstellar medium (ISM) and the formation of complex organic molecules (COMs) relevant to life.
Nigel J. Mason   +4 more
doaj   +1 more source

Geochemistry of the cretaceous-tertiary transition boundary at Blake Nose (N. W. Atlantic): Cosmogenic Ni [PDF]

open access: yesJournal of the Serbian Chemical Society, 2004
The Cretaceous-Tertiary (KT) boundary transition at the Blake Nose Plateau recovered by ODP Leg 171B (site 1049, hole A, core 17X, section 2) contains an ejecta bed (thickness ca. 17 cm) marking a late Cretaceous asteroid impact.
Premović Pavle I.   +3 more
doaj   +1 more source

Infrared Spectra and Vapor Pressures of Crystalline C2N2, with Comparisons to Crystalline HCN

open access: yesThe Planetary Science Journal, 2023
In a continuation of our work on nitriles, we have examined cyanogen (C _2 N _2 ) as a crystalline solid, comparing the results to our recent work on crystalline hydrogen cyanide (HCN).
Reggie L. Hudson, Perry A. Gerakines
doaj   +1 more source

Gas-phase Ortho-to-para Ratio of Formaldehyde Formed at Low Temperatures in Laboratory Ices

open access: yesThe 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
doaj   +1 more source

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