Copernicus observations of interstellar matter toward the Orion OB1 association. I - Epsilon and Pi-5 Orionis

Abstract

view Abstract Citations (19) References (23) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Copernicus observations of interstellar matter toward the Orion OB1 association. I. epsilon and pi 5 Orionis. Shull, J. M. Abstract Copernicus UV data on interstellar lines toward Epsilon Ori and Pi-5 Ori are analyzed to study abundances and physical conditions in both low- and intermediate-velocity components. Clouds at -8 and +5 km/s (LSR) toward Epsilon Ori show typical depletions of Fe, Ti, Mg, and Si in dense (H number density about 100 per cu cm) gas. Low-column-density intermediate-velocity clouds toward both stars, with low densities (hydrogen number density less than 1 per cu cm) and near-cosmic Si abundances, are consistent with a widespread pattern of high-velocity gas over a 15-deg area surrounding the Orion region. Such activity may be attributed to the repeated action of supernovae in a patchy low-density region of interstellar gas. Publication: The Astrophysical Journal Pub Date: October 1979 DOI: 10.1086/157379 Bibcode: 1979ApJ...233..182S Keywords: Astronomical Spectroscopy; Interstellar Matter; Orion Nebula; Satellite Observation; Spaceborne Astronomy; Abundance; Gas Density; Oao 3; Spectral Line Width; Tables (Data); Astrophysics; Interstellar Lines:UV; Interstellar Matter:Element Abundances; Interstellar Matter:Stellar Associations full text sources ADS | data products SIMBAD (2) MAST (1)