Photometric Variability of Four Coronally Active Stars

Details Photometric Variability of Four Coronally Active Stars Photometric Variability of Four Coronally Active Stars

Jun 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002japa...23....9p&link_type=abstract

Journal of Astrophysics and Astronomy, Vol. 23, p.9

Astronomy and Astrophysics

Astrophysics

6

Stars, Variable, Photometry, X-Ray

Scientific paper

We present photometric observations of four stars that are optical counterparts of soft X-ray/EUV sources, namely 1ES 0829+15.9, 1ES0920-13.6, 2RE J110159+223509 and 1ES 1737+61.2. We have discovered periodic variability in two of the stars, viz., MCC 527 (1ES 0829+15.9; Period = 0d :828 0:0047) and HD 81032 (1ES 0920-13.6; Period = ~ 57:02 0:560 days). HD 95559 (2RE J110159+223509) is found to show a period of 3d . HD 160934 (1ES1737+61.2) also shows photometric variability but needs to be monitored further for finding its period. These stars most likely belong to the class of chromospherically active stars.

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