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Interstellar C IV and Si IV in the Direction of Loop I

Published online by Cambridge University Press:  12 April 2016

Rubens Freire Ferrero
Rubens Freire Ferrero*
Affiliation:
Observatoire Astronomique, 11 rue de I’ Université, 67000 - Strasbourg, France

Abstract

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Nearby late-B and early-A stars show clear IS absorptions in Mg II, C II and other lines (IUE spectra). Some of them, in the Sco Cen direction, also show absorption features at C IV and Si IV line wavelengths. We discuss the possible formation of these lines in an intermediate temperature gas region between the dense and cold H I wall and the hot ISM, a region that could be the collision interaction between the Local Bubble and the Loop I supershell. Some individual stellar spectra are presented and discussed.

Type
Part III Observations and Modeling of the Local Bubble and the SXRB
Information
International Astronomical Union Colloquium , Volume 166: The Local Bubble and Beyond , 1997 , pp. 99 - 102
Copyright
Copyright © Springer-Verlag 1998

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