Doppler maps and surface differential rotation of EI eri from the MUSICOS 1998 observations

Zs Kövári, A. Washuettl, B. H. Foing, K. Vida, J. Bartus, K. Oláh

Research output: Contribution to journalConference article

4 Citations (Scopus)

Abstract

We present time-series Doppler images of the rapidly-rotating active binary star EI Eri from spectroscopic observations collected during the MUSICOS multi-site campaign in 1998, since the critical rotation period of 1.947 days makes it impossible to obtain time-resolved images from a single site. From the surface reconstructions a weak solar-type differential rotation, as well as a tiny poleward meridional flow are measured.

Original languageEnglish
Pages (from-to)676-679
Number of pages4
JournalAIP Conference Proceedings
Volume1094
DOIs
Publication statusPublished - Apr 23 2009
Event15th Cambridge Workshop on Cool Stars, Stellar Systems and the Sun - St. Andrews, United Kingdom
Duration: Jul 21 2008Jul 25 2008

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Keywords

  • Activity
  • EI Eri
  • Imaging
  • Individual
  • Late-type
  • Starspots

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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