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The ORFEUS Far Ultraviolet Spectrum of the LMC Binary Star HDE 269546

Published online by Cambridge University Press:  12 April 2016

H. Widmann ,
G. Krämer ,
I. Appenzeller ,
J. Barnstedt ,
A. Fromm ,
M. Gölz ,
M. Grewing ,
W. Gringel ,
C. Haas  and
W. Hopfensitz
...Show all authors
H. Widmann
Affiliation:
Institut für Astronomie und Astrophysik, D-72076 Tübingen, Germany
G. Krämer
Affiliation:
Institut für Astronomie und Astrophysik, D-72076 Tübingen, Germany
I. Appenzeller
Affiliation:
Landessternwarte Heidelberg, Königsstuhl, D-69117 Heidelberg, Germany
J. Barnstedt
Affiliation:
Institut für Astronomie und Astrophysik, D-72076 Tübingen, Germany
A. Fromm
Affiliation:
Institut für Astronomie und Astrophysik, D-72076 Tübingen, Germany
M. Gölz
Affiliation:
Institut für Astronomie und Astrophysik, D-72076 Tübingen, Germany
M. Grewing
Affiliation:
Institut de Radio Astronomie Millimétrique, F-38406 St. Martin d’Hères, France
W. Gringel
Affiliation:
Institut für Astronomie und Astrophysik, D-72076 Tübingen, Germany
C. Haas
Affiliation:
Institut für Astronomie und Astrophysik, D-72076 Tübingen, Germany
W. Hopfensitz
Affiliation:
Institut für Astronomie und Astrophysik, D-72076 Tübingen, Germany
N. Kappelmann
Affiliation:
Institut für Astronomie und Astrophysik, D-72076 Tübingen, Germany
J. Krautter
Affiliation:
Landessternwarte Heidelberg, Königsstuhl, D-69117 Heidelberg, Germany
A. Lindenberger
Affiliation:
Institut für Astronomie und Astrophysik, D-72076 Tübingen, Germany
H. Mandel
Affiliation:
Landessternwarte Heidelberg, Königsstuhl, D-69117 Heidelberg, Germany

Abstract

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Far UV high resolution spectra of 3 LMC and SMC stars were obtained with the Echelle spectrograph during the second ORFEUS mission in Dec. 1996. We present the first results from observations of the LMC star HDE 269546. We find definitely components of very hot gas identified as OVI and SVI absorption in the galactic halo of the Milky Way and in the LMC. Additionally, more than 30 ions of the most abundant elements in different stages of ionization can be identified in both our galaxy and the LMC. For the first time we can identify a significant absorption component of molecular hydrogen in the ORFEUS II Echelle spectrum with a redshift of 200 km s−1, doubtlessly to be attributed to the LMC.

Type
Part VIII High-Velocity Clouds, Galactic Halo Models, Observations of the LMC
Information
International Astronomical Union Colloquium , Volume 166: The Local Bubble and Beyond , 1997 , pp. 517 - 520
Copyright
Copyright © Springer-Verlag 1998

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