Results 241 to 250 of about 10,581 (275)

A Natural Laboratory for Astrochemistry: The Variable Protostar B335

Astrophysical Journal Letters
Emission lines from complex organic molecules in B335 were observed in four epochs, spanning a luminosity burst of about 10 yr duration. The emission lines increased dramatically in intensity as the luminosity increased, but they have decreased only ...
Jeong-Eun Lee, N. Evans, Giseon Baek, Chul-Hwan Kim, Jinyoung Noh, Yao-Lun Yang   +5 more
semanticscholar   +1 more source

Icy Grain Mantle Surface Astrochemistry of MgNC: The Emergence of Metal Ion Catalysis Studied via Model Ice Cluster Calculations.

Journal of Physical Chemistry A, 2022
One of a small number of known magnesium-containing astromolecules, magnesium isocyanide (MgNC) was first detected in 1986. MgNC is an intriguing reactant to consider: it is an open-shell radical in which its metal atom forms a bond with CN that is a ...
D. Woon
semanticscholar   +1 more source

Quantum Chemistry and Astrochemistry: A Match Made in the Heavens.

Journal of Physical Chemistry A
Quantum chemistry can uniquely answer astrochemical questions that no other technique can provide. Computations can be parallelized, automated, and left to run continuously providing exceptional molecular throughput that cannot be done through ...
R. C. Fortenberry
semanticscholar   +1 more source

Prebiotic Astrochemistry from Astronomical Observations and Laboratory Spectroscopy.

Annual review of physical chemistry (Print)
The discovery of more than 200 gas-phase chemical compounds in interstellar space has led to the speculation that this nonterrestrial synthesis may play a role in the origin of life. These identifications were possible because of laboratory spectroscopy,
L. Ziurys
semanticscholar   +1 more source

Building an Astrophysics/Astrochemistry Laboratory fromScratch

The Physics Teacher, 2022
Laboratory astrophysics and astrochemistry are emerging fields highlighting the importance of laboratory simulations and experiments to benefit remote observations.
D. White
semanticscholar   +1 more source

Formation of Para-H2O by Vacuum-UV Photolysis of O2 in Solid Hydrogen: Implication for Astrochemistry.

Journal of Physical Chemistry Letters, 2022
The observation that the ortho to para ratio (OPR) of interstellar H2O is smaller than 3 is an important yet unresolved subject in astronomy. We irradiated O2 embedded in solid H2 at 3 K with vacuum-ultraviolet (VUV) light and observed IR lines ...
Shu-Yu Lin, Wen-Jian Huang, S. Chou, Hui-Fen Chen, Yu-Jong Wu   +4 more
semanticscholar   +1 more source

Astrochemistry and Astrobiology

2013
Aspects of Physical Chemistry.- The Molecular Universe.- Chemical Processes in the Interstellar Medium.- Astrochemistry: Synthesis and Modelling.- Planetary Atmospheres and Chemical Markers for Extraterrestrial Life.- The Importance of Water.- Life, Metabolism and Energy.- Life: The Physical Underpinnings of Replication.- Physical Chemistry.
Ian W. M. Smith, Sydney J. Leach, Charles S. Cockell   +2 more
openaire   +2 more sources

Astrochemistry Examples in the Classroom [PDF]

Journal of Chemical Education, 2006
Astronomy and astronomy-related topics have sufficient appeal and depth that they can be used to motivate students, illustrate important chemical concepts, and demonstrate that chemistry and chemists are concerned with all parts of nature. In this article some recent developments in astrochemistry are suggested as examples for the teaching of acid–base
openaire   +1 more source

Methodology and uncertainties in astrochemistry

2022
National ...
Palluet, Amélie, Lique, François
openaire   +2 more sources

Observational astrochemistry: Recent results

Advances in Space Research, 1989
More than 80 molecular species have now been observed by astronomers in the dense interstellar clouds where stars and planets form or in the envelopes expelled by evolved stars. Elemental constituents of these compounds include all of the "biogenic" elements, hydrogen, carbon, nitrogen, oxygen, sulfur, and (most recently) phosphorus.
openaire   +3 more sources