Hostname: page-component-cd9895bd7-hc48f Total loading time: 0 Render date: 2024-12-25T16:30:20.416Z Has data issue: false hasContentIssue false

Ultra-High Resolution Ca II Observations of the LISM

Published online by Cambridge University Press:  12 April 2016

Barry Y. Welsh
Affiliation:
Eureka Scientific, Oakland, CA 94602, USA
Rosine Lallement
Affiliation:
Service d’Aeronomie du CNRS, Verrieres le Buisson, France
Ian Crawford
Affiliation:
University College London, London WC1E 6BT, England

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

We report on the status of a long-term program of mapping the velocity structure of the local ISM using ultra-high resolution observations of Call K-line absorption towards nearby B and A-type stars. Absorption components common to the local interstellar cloud (LIC) have been detected in many (but not all) lines-of-sight. Our preliminary results indicate that the local ISM has a complex velocity pattern of inhomogeneous absorption, indicative of a shocked filamentary nature.

Type
Part II UV and Soft X-ray Observations of the LISM
Copyright
Copyright © Springer-Verlag 1998

References

Bertin, P., Lallement, R., Ferlet, R., and Vidal-Madjar, A. (1993): Astr. & Astro- phys., 278, 549560 Google Scholar
Crawford, I. (1994): The Observatory 114, 288293 Google Scholar
Crawford, I. and Dunkin, S. (1995): M.N.R.A.S., 273, 219224 Google Scholar
Crawford, I., Craig, N. and Welsh, B. (1997): Astr. & Astrophys., 317, 889897 Google Scholar
Diego, F. et al. (1995): M.N.R.A.S., 272, 323332 Google Scholar
Lallement, R. and Bertin, P. (1992): Astr. & Astrophys., 266, 479485 Google Scholar
Lallement, R., Vidal-Madjar, A. and Ferlet, R. (1986): Astr. k Astrophys., 168, 225236 Google Scholar
Linsky, J. and Wood, B. (1995): Astrophys. Journal, 463, 323332 Google Scholar
Vallerga, J., Vedder, P., Craig, N. and Welsh, B. (1993): Astrophys. Journal, 411, 729749 Google Scholar
Welsh, B., Craig, N., Vedder, P. and Vallerga, J. (1994): Astrophys. Journal, 437, 638657 Google Scholar