A Combined Mg Ii Ca Ii Survey Of Stellar Magnetic Activity In The Solar Neighborhood Final Report Nasa Cr 204946 Sep 18 1997

Author : National Aeronautics and Space Administration (NASA)
Publisher : Createspace Independent Publishing Platform
ISBN 13 : 9781724977922
Total Pages : 34 pages
Book Rating : 4.9/5 (779 download)

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Download or read book A Combined MG II/CA II Survey of Stellar Magnetic Activity in the Solar Neighborhood written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-08-09 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: We use nearly contemporaneus low-resolution IUE observations of Mg II h + k emission and Mount Wilson Observatory Ca II H + K S indices for 33 pairs of observations of lower main sequence stars to formulate a relationship that will permit accurate predictions of S values as a function of (B - V) color and Mg II h + k flux. The resulting relationship is useful because it will extend the set of solar neighborhood stars for which a uniform estimate of chromospheric activity is available to include stars that are not observable from Mount Wilson as well as providing additional estimates of activity levels for stars that are on the Mount Wilson HK Project observing list. Wicklund, B. M. and Donahue, R. A. and Dobson, A. K. and Baliunas, Sallie L. Goddard Space Flight Center NASA-CR-204946, NAS 1.26:204946 NAG5-2444...