ULTRAVIOLET MEASUREMENTS OF INTERSTELLAR C2
نویسندگان
چکیده
منابع مشابه
Far Ultraviolet Spectroscopic Explorer Measurements of Interstellar Fluorine
The source of fluorine is not well understood, although core-collapse supernovae, Wolf-Rayet stars, and asymptotic giant branch stars have been suggested. A search for evidence of the -process during Type II supernovae is presented. Absorption from interstellar F i is seen in spectra of HD 208440 and HD 209339A acquired with the Far Ultraviolet Spectroscopic Explorer. In order to extract the co...
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Three interstellar absorption lines near 13708 seen toward Oph have been assigned byWatson to Rydberg transitions in theGYX (or 3dYX ) band of CH. Our survey of a dozen diffuse interstellar lines of sight shows that the three absorption lines are consistent with the known column densities of CH, by deriving the following oscillator strengths: f (1368:74) 1⁄4 0:019 0:003, f (1369:13) 1⁄4 0:030 0...
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Astro-2 has revealed a broad, weak spectral feature in the ultraviolet interstellar linear polarization for two lines of sight, conÐrming the original detection toward HD 197770 and adding HD 147933È4. These are the only two polarization features found in some 30 lines of sight now observed. Both features are centered close to 2175 the position of the ubiquitous ultraviolet extinction bump. Two...
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ژورنال
عنوان ژورنال: The Astrophysical Journal
سال: 2012
ISSN: 0004-637X,1538-4357
DOI: 10.1088/0004-637x/761/1/38