Results 121 to 130 of about 7,455 (223)

Interstellar hydrogen bonding

open access: yes, 2018
This paper reports the first extensive study of the existence and effects of interstellar hydrogen bonding. The reactions that occur on the surface of the interstellar dust grains are the dominant processes by which interstellar molecules are formed ...
Gorai, Prasanta   +4 more
core   +1 more source

The Synchrotron-based Far-infrared Spectrum of Propargylamine

open access: yesThe Astrophysical Journal Supplement Series
Propargylamine (HC≡C–CH _2 –NH _2 ), with a triple bond and an amine group, is a nitrogen-bearing organic molecule of astrochemical interest due to its potential role as a precursor to aminoacetonitrile and other complex organic molecules in the ...
Tianhao Hu   +4 more
doaj   +1 more source

5 cm OH Masers in Northern Star Formation Regions

open access: yesThe Astronomical Journal
We present a 6.0 GHz excited-state OH maser survey toward 155 northern star formation regions utilizing the Shanghai Tianma Radio Telescope. In total, we detect 44 6.0 GHz OH masers, 8 of which are new detections (one at 6016 MHz, two at 6030 MHz, and ...
Hai-Hua Qiao   +6 more
doaj   +1 more source

The Submillimeter-wave Rotational Spectra of Interstellar Molecules

open access: yes, 2002
We discuss past and recent progress in our long-term laboratory program concerning the submillimeter-wave rotational spectroscopy of known and likely interstellar molecules, especially those associated with regions of high-mass star formation.
Herbst, Eric   +7 more
core  

Metallic species in the interstellar medium: Astrochemical modeling

open access: yes
International audienceMetal-bearing species in diffuse or molecular clouds are often overlooked in astrochemical modeling except for the charge exchange process. However, catalytic cycles involving these metals can affect the abundance of other compounds.
Caselli, Paola, Sil, Milan, Das, Ankan
core   +1 more source

Submillimetre molecular line observations and modelling of molecular clouds.

open access: yes, 1985
PhDSubmillimetre molecular line observations of molecular clouds in our galaxy are presented, and the data analysed using various alternative cloud models.
Richardson, Kevin John
core  

Non-equilibrium preparation of (<i>E</i>)-phosphinimine (HPNH, X<sup>1</sup>A') - a precursor to prebiotic phosphorylating agents. [PDF]

open access: yesChem Sci
Wang J   +8 more
europepmc   +1 more source

Cryogenic Bottom-up Formation of the Benzene Cation from Acetylene in Helium Nanodroplets. [PDF]

open access: yesJ Am Chem Soc
Foitzik F   +5 more
europepmc   +1 more source

Studies of interstellar vibrationally-excited molecules

open access: yes, 1986
Several molecules thus far have been detected in the ISM in vibrationally-excited states, including H2, SiO, HC3N, and CH3CN. In order for vibrational-excitation to occur, these species must be present in unusually hot and dense gas and/or where strong ...
Snell, R. L.   +2 more
core  

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