The detection of the FlPi(u)-XlSigma(+)g system of diatomic carbon toward X Persei
The 0-0 vibrational band of the F1Pi(u)-X1Sigma(+)g electronic system of C2 has been detected with the IUE in the interstellar medium along the line of sight toward X Per. A column density of 3 (+ or - 1) x 10 to the 12th/f(00) per sq cm was derived by a profile fitting method. The lower limit for 0...
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| Published in | The Astrophysical journal Vol. 287; pp. L95 - L98 |
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| Main Author | |
| Format | Journal Article |
| Language | English |
| Published |
Legacy CDMS
15.12.1984
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| Subjects | |
| Online Access | Get full text |
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| Summary: | The 0-0 vibrational band of the F1Pi(u)-X1Sigma(+)g electronic system of C2 has been detected with the IUE in the interstellar medium along the line of sight toward X Per. A column density of 3 (+ or - 1) x 10 to the 12th/f(00) per sq cm was derived by a profile fitting method. The lower limit for 0-0 band oscillator strength was determined from a comparison of the upper limits of observations of the A-X and D-X systems, and an excitation temperature of 40 K was also obtained from the profile fitting. A statistical calculation of the level population with radiative pumping shows that the 0-0 band profile corresponds to a range of values for kinetic temperature, density, and near-IR radiation. An upper limit of 50 K for kinetic temperature was determined from the statistical equilibrium analysis. |
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| Bibliography: | CDMS Legacy CDMS ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 |
| ISSN: | 0004-637X 1538-4357 |
| DOI: | 10.1086/184406 |