Results 101 to 110 of about 1,113,005 (163)
Indirect observation of unobservable interstellar molecules [PDF]
, 1977 It is suggested that the abundances of neutral non-polar interstellar molecules unobservable by radio astronomy can be systematically determined by radio observation of the protonated ions.
Green, S. +3 more
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The ALCHEMI Atlas: Principal Component Analysis Reveals Starburst Evolution in NGC 253
The Astrophysical Journal Supplement SeriesMolecular lines are powerful diagnostics of the physical and chemical properties of the interstellar medium (ISM). These ISM properties, which affect future star formation, are expected to differ in starburst galaxies from those of more quiescent ...
Nanase Harada +26 more
doaj +1 more source
Lifetimes of Certain Interstellar Organic Molecules [PDF]
, 1981 78-79Lifetimes of some organic molecules such as H2CO, H2CS, HCOOH, CH3NH2, CH3OH and CH3CHO in interstella, space against photodissociation and chemical reactions in the gas phase have been calculated.
Ghosh, K K, Ghosh, S N
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Large aromatic molecules in the interstellar medium
, 2004 We propose a consistent explanation of the so-called "unidentified" IR emission bands of the Interstellar Medium observed at 3.3 - 6.2 - 7.7 - 8.6- 11.3 μm. Following Sellgren (1984), we consider the transient heating of Very Small Grains (∼ 50 atoms) to
A. Léger, L. d'Hendecourt
core +1 more source
The Astrophysical JournalDiatomic 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 +8 more
doaj +1 more source
Photoabsorption and photodissociation of molecules important in the interstellar medium [PDF]
, 1986 In the period from May 15, 1985 to May 14, 1986, the photoabsorption and photodissociation cross sections of the interstellar radical of SO and the interstellar molecules of HCl, H2CO, and CH3CN were measured and the results were reported in scientific ...
Lee, L. C.
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Interstellar Dust-catalyzed Hydrogen Formation Enabled by Nuclear Quantum Effects
The Astrophysical JournalMolecular hydrogen (H _2 ) is one of the key chemical species that controls and shapes a wide spectrum of astrophysical processes from galaxy evolution to planet formation. Although catalyzation on dust grain surfaces is the dominant formation channel of
Xiaolong Yang +3 more
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Photoabsorption and photodissociation of molecules important in the interstellar medium [PDF]
, 1991 The photoabsorption, photodissociation, and fluorescence cross sections of interstellar molecules are measured at 90 to 250 nm. These quantitative optical data are needed for the understanding of the formation and destruction processes of molecules under
Lee, Long C., Suto, Masako
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On the Interpretation of Mid-infrared Absorption Lines of Gas-phase H2O as Observed by JWST/MIRI
The Astrophysical Journal Supplement SeriesRovibrational absorption lines of H _2 O in the 5–8 μ m wavelength range selectively probe gas against the mid-infrared continuum-emitting background of the inner regions of young stellar objects and active galactic nuclei and deliver important ...
Jialu Li +2 more
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The Synchrotron-based Far-infrared Spectrum of Propargylamine
The Astrophysical Journal Supplement SeriesPropargylamine (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