Results 121 to 130 of about 2,145,468 (291)

Interstellar Molecules in Meteorites [PDF]

Symposium - International Astronomical Union, 1989
Substantial enrichment of deuterium, D, in certain components of chondritic meteorites is interpreted as a record of isotopic fractionation during ion-molecule reactions at the very low temperatures characteristic of dense interstellar clouds. Whether those meteorites still contain the actual molecules that were synthesised in the presolar interstellar
openaire   +1 more source

Photochemistry of interstellar molecules [PDF]

The photochemistry of two diatomic and eight polyatomic molecules is discussed quantitatively. For an interstellar molecule, the lifetime against photodecomposition depends upon the absorption cross section, the quantum yield or probability of ...
Stief, L. J.
core   +1 more source

Long-chain hydrocarbon molecules in the interstellar medium: search for 1-cyanobut-3-ene-1-yne, CH2=CH--C C--C N [PDF]

, 1985
Harold W. Kroto, D. McNaughton, L. T. Little, N. Matthews   +3 more
openalex   +1 more source

Interstellar grain mantles [PDF]

Interstellar molecular grain mantles are an important component of the interstellar dust inside dense molecular clouds as evidenced by the detection of absorption bands at 2.97, 3.08, 4.61, 6.0 and 6.8 microns.
Allamandola, Louis J., Bregman, J., Tielens, Alexander G. G. M., Witteborn, F. C.   +3 more
core   +1 more source

CHIPS Science Investigation: Exploring the Interstellar Medium [PDF]

, 2003
This booklet describes the interstellar medium and the local bubble that is being studied by NASA’s Cosmic Hot Interstellar Plasma Spectrometer (CHIPS) satellite.

core  

Scientific returns from a program of space missions to comets [PDF]

A program of cometary missions is proposed. The nature and size of interstellar dust, its origin and evolution; identification of new interstellar molecules; clarification of interstellar chemistry; accretion of grains into protosolar cometesimals; role ...
Delsemme, A. H.
core   +1 more source

SEARCHING FOR INTERSTELLAR MOLECULE BUTATRIENYLIDENE IN REACTION C₂+ C₂H₄ [PDF]

, 2012
Shih‐Huang Lee, Wen-Jian Huang, Yi‐Cheng Lin, Chih‐Hao Chin   +3 more
openalex   +1 more source

Spin-Forbidden Formation of Amide Molecules in the Interstellar Medium [PDF]

, 2023
Amir Mirzanejad, Sergey A. Varganov
openalex   +1 more source

Spectroscopic Identification and Photochemistry of Astrochemically Relevant Phosphorus-bearing Molecules [O, C, N, P] and [2O, C, N, P]

The Astrophysical Journal
Diatomic molecules phosphorus monoxide (PO) and phosphorus mononitride (PN) are the main reservoirs of gas-phase phosphorus in interstellar and circumstellar environments, indicating the possibility of forming new phosphorus-bearing molecules through ...
Bifeng Zhu, Minghao Wang, Junjie Jiang, Ningjing Jiang, Jingling Hong, Guntram Rauhut, Guanjun Wang, Weixing Li, Xiaoqing Zeng   +8 more
doaj   +1 more source

Fingerprinting fragments of fragile interstellar molecules: dissociation chemistry of pyridine and benzonitrile revealed by infrared spectroscopy and theory.

Faraday Discuss, 2023
Rap DB, Simon A, Steenbakkers K, Schrauwen JGM, Redlich B, Brünken S.   +5 more
europepmc   +1 more source