Results 31 to 40 of about 25,001 (219)
Diffuse interstellar bands and cloud density [PDF]
Monthly Notices of the Royal Astronomical Society, 1988 Il est demontre que les forces des caracteristiques d'absorption a λλ4430 et 5780 sont independantes des quantites en relation a la densite des nuages interstellaires. Il est demontre que des resultats anterieurs qui suggeraient de telles relations sont errones suite a l'omission de valeurs non nulles a E(B-V)=0 dans les analyses de ...
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The Diffuse Interstellar Clouds toward 23 Orionis [PDF]
The Astrophysical Journal Supplement Series, 1999 Spectra obtained with the Hubble Space Telescope GHRS are combined with high-resolution optical spectra and UV spectra from Copernicus to study the abundances and physical conditions in the diffuse interstellar clouds seen along the line of sight to the star 23 Ori.
Welty, D. E. +5 more
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Shaken or Stirred: The Diffuse Interstellar Medium with Exceptionally High SiO Abundance
The Astrophysical Journal, 2023 Interstellar shocks, a key element of stellar feedback processes, shape the structure of the interstellar medium (ISM) and are essential for the chemistry, thermodynamics, and kinematics of interstellar gas.
Daniel R. Rybarczyk +2 more
doaj +1 more source
FUSE Observations of Molecular Hydrogen in Translucent Interstellar Clouds: The Line of Sight Toward HD 73882 [PDF]
, 2000 We report the results of initial FUSE observations of molecular hydrogen (H2) in translucent clouds. These clouds have greater optical depth than any of the diffuse clouds previously observed for far-UV H2 absorption, and provide new insights into the ...
A. Lecavelier +24 more
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The galactic environment of the Sun [PDF]
, 1999 The interstellar cloud surrounding the solar system regulates the galactic environment of the Sun and constrains the physical characteristics of the interplanetary medium.
Frisch, P. C.
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Mapping atomic and diffuse interstellar band absorption across the Magellanic Clouds and the Milky Way [PDF]
, 2015 Diffuse interstellar bands (DIBs) trace warm neutral and weakly-ionized diffuse interstellar medium (ISM). Here we present a dedicated, high signal-to-noise spectroscopic study of two of the strongest DIBs, at 5780 and 5797 \AA, in optical spectra of 666
Bailey, Mandy +3 more
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Large molecules in diffuse interstellar clouds
The Astrophysical Journal, 1988 The effects of the presence of a substantial component of large molecules on the chemistry of diffuse molecular clouds are explored, and detailed models of the zeta Persei and zeta Ophiuchi clouds are constructed. The major consequence is a reduction in the abundances of singly charged atomic species.
Lepp, S. +3 more
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The chemistry of fluorine-bearing molecules in diffuse and dense interstellar gas clouds
, 2005 We present a theoretical investigation of the chemistry of fluorine-bearing molecules in diffuse and dense interstellar gas clouds. The chemistry of interstellar fluorine is qualitatively different from that of any other element, because - unlike the ...
Neufeld, David A. +2 more
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A Herschel [C II] Galactic plane survey II: CO-dark H2 in clouds [PDF]
, 2014 ABRIDGED: Context: HI and CO large scale surveys of the Milky Way trace the diffuse atomic clouds and the dense shielded regions of molecular hydrogen clouds.
Goldsmith, P. F. +4 more
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On the evolution of diffuse interstellar clouds [PDF]
Monthly Notices of the Royal Astronomical Society, 1992 We have computed models of a diffuse interstellar cloud which illustrate the progression from largely atomic to molecular gas with increasing optical depth. The medium is assumed to evolve isobarically, and the time-dependent chemistry is followed with the aid of a library of about 500 reactions.
E. L. Heck +4 more
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