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Neutral Clouds Within the Local X-ray Plasma

Published online by Cambridge University Press:  12 April 2016

Jürgen Kerp  and
Jochen Pietz
Jürgen Kerp
Affiliation:
Radioastronomisches Institut der Universität Bonn, D-53121 Bonn, Germany
Jochen Pietz
Affiliation:
Radioastronomisches Institut der Universität Bonn, D-53121 Bonn, Germany

Abstract

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We present new results based on the analysis of ROSAT PSPC observations towards nearby neutral clouds. These clouds are detectable as deep soft X-ray absorption features within the ¼ keV energy band. Towards one of these clouds, optical absorption line measurements determine an upper distance limit of D ≤ 60 pc. The presented data suggest that this filament is only a part of a much more extended local–cloud structure. Here we demonstrate that we most probably detected a local neutral atomic hydrogen “wall” in the direction of a low–velocity arc (Pietz 1994).

Type
Part IV Clouds, Ionized Gas, and Particles in the Local ISM
Information
International Astronomical Union Colloquium , Volume 166: The Local Bubble and Beyond , 1997 , pp. 165 - 168
Copyright
Copyright © Springer-Verlag 1998

References

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