Hostname: page-component-78c5997874-t5tsf Total loading time: 0 Render date: 2024-11-02T22:14:51.648Z Has data issue: false hasContentIssue false
  • English
  • Français

Discovery of FK comae and RS CVn systems by observation of their X-ray emission

Published online by Cambridge University Press:  04 August 2017

Thomas A. Fleming ,
Isabella Gioia  and
Tommaso Maccacaro
Thomas A. Fleming
Affiliation:
Steward Observatory, Tucson, AZ 85721 USA
Isabella Gioia
Affiliation:
Harvard-Smithsonian Center for Astrophysics Cambridge, MA 02138 USA
Tommaso Maccacaro
Affiliation:
Harvard-Smithsonian Center for Astrophysics Cambridge, MA 02138 USA

Extract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

We are currently working with a statistically complete, unbiased sample of 125 x-ray-bright stars which were serendipitously detected by the Einstein Observatory Medium Sensitivity Survey (MSS). A program of optical spectroscopy and photometry is currently underway to measure radial velocities, distances, and such stellar parameters as rotation, temperature, surface gravity, metallicity, chromospheric activity, and age and to correlate them with absolute x-ray luminosity. So far, the majority of the sample (which was defined at |bII| > 20o) appears to be composed of either flare stars (e.g. dMe, dKe) or active binary systems (e.g. cataclysmic variables, RS CVn, W UMa).

Type
Stellar Coronae: Chromospheres of Cool Stars
Information
Symposium - International Astronomical Union , Volume 122: Circumstellar Matter , 1987 , pp. 367
Copyright
Copyright © Reidel 1987