Washuettl, Albert

Contact Email: kstrassmeier@aip.de
Institute: Astrophysical Institute Potsdam
First Coauthor: Klaus Strassmeier
Institute: Astrophysical Institute Potsdam
Second Coauthor: Bernard Foing
Institute: ESA-ESTEC
Research URL:http://www.aip.de/groups/activity/DI/results.html
Presenting Thesis: Yes
Subject Area: Stellar Atmospheres, Circumstellar Material
Waveband: Optical
Technique: Imaging (Doppler)
Presentation: Poster Display
Title: MUSICOS observation of the active binary star EI Eridani
Abstract: We present first results on spectroscopic observations of the rapidly-rotating active binary star EI Eridani obtained during the MUSICOS multi-site campaign in 1998. Seven sites around the globe were involved in order to achieve full phase coverage within a few rotations as EI Eridani's critical rotation period of 1.945 days makes it impossible to obtain time-resolved surface images from a single observing site. The data are split into groups in order to achieve consecutive, independent Doppler images. Furthermore, simultaneous photospheric and chromospheric activity monitoring was carried out.