Abstract
view Abstract Citations (31) References (21) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Interstellar nitrogen. I. The line of sight to GAM Cas. Ferlet, R. ; Laurent, C. ; Vidal-Madjar, A. ; York, D. G. Abstract Observations of interstellar nitrogen absorption features in the spectrum of the star Gamma Cas with the Copernicus satellite were performed. Because of the large range in f-values for the lines observed, it is possible to accurately determine the structure of the line of sight. Four components at LSR velocities are found around minus 24.6 km/s (component A), minus 17.1 km/s (component B), minus 7.8 km/s (component C), and plus 1.3 km/s (component D). Through the comparison with H I absorption lines and ground-based observations, it is shown that the main component (B), which contains about 97 percent of the total nitrogen column density, is warm (T about 12,000 K). It is also demonstrated that N I is, on average, not depleted on the line of sight. Publication: The Astrophysical Journal Pub Date: January 1980 DOI: 10.1086/157650 Bibcode: 1980ApJ...235..478F Keywords: Abundance; Interstellar Gas; Nitrogen; Stellar Spectra; Ultraviolet Spectra; Absorption Spectra; Interstellar Extinction; Nebulae; Satellite Observation; Ultraviolet Astronomy; Astrophysics full text sources ADS | data products SIMBAD (1) MAST (1)
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