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Astron. Astrophys. 346, L73-L75 (1999)
Letter to the Editor
Discovery of metal line emission from the Red star in IP Peg during outburst maximum
E. Harlaftis *
Astronomical Institute, National Observatory of Athens, Lofos Nymfon, P.O. Box 20048, GR-11810 Athens, Greece (ehh@astro.noa.gr)
Received 6 April 1999 / Accepted 18 May 1999
Abstract
Observations of the eclipsing dwarf nova IP Peg during outburst reveal metal lines in emission, such as Mg II 4481 Å. Analysis using Doppler tomography locates emission of helium and metal lines on the inner Roche lobe of the secondary star. Such multi-line Roche-lobe imaging presents a new tool in mapping the red star's ionization structure.
Key words: stars: binaries:
close 
accretion, accretion
disks
stars: individual: IP
Peg
stars: novae, cataclysmic variables
* Visiting Scientist: School of Physics and Astronomy, University of St. Andrews, KY16 9SS, UK
Send offprint requests to: E. Harlaftis
Contents
- 1. Introduction
- 2. Doppler tomography
- 3. Line emission from the Red star
- Acknowledgements
- References
© European Southern Observatory (ESO) 1999
Online publication: June 17, 1999
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