Interstellar abundances in the Zeta Ophiuchi clouds

Abstract

view Abstract Citations (33) References (42) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Interstellar abundances in the zeta Ophiuchi clouds. Snow, T. P., Jr. ; Meyers, K. A. Abstract The velocity component structure of UV interstellar absorption line profiles observed toward Zeta Ophiuchi clouds has been analyzed; column densities of Mg II, P II, Mn II and Fe II are found for the clouds at -14.4 km/sec (the principal component) and those at about -30 km/sec (a blend of two components). Little or no depletion is noted in the secondary component, suggesting that the grain mantles have been sputtered off, perhaps by a shock front, in this moderately high-velocity cloud. Residual depletion of calcium and titanium in the shocked cloud provides information on the nature of the grain surfaces. In the low-velocity cloud, the relative abundances of neutral atoms may indicate a differential depletion within the cloud. Publication: The Astrophysical Journal Pub Date: April 1979 DOI: 10.1086/156987 Bibcode: 1979ApJ...229..545S Keywords: Abundance; Astronomical Spectroscopy; Interstellar Matter; Nebulae; O Stars; Ultraviolet Spectra; Absorption Spectra; Density (Mass/Volume); Hydrogen Clouds; Iron; Magnesium; Manganese; Metal Ions; Oao 3; Phosphorus; Astrophysics; Interstellar Matter:Element Abundances; Interstellar Matter:Line Profiles; Interstellar Matter:UV Spectra full text sources ADS |