Photometric Variability of Four Coronally Active Stars

Please use this identifier to cite or link to this item: http://hdl.handle.net/2248/2733

Title:	Photometric Variability of Four Coronally Active Stars
Authors:	Pandey, J. C Singh, K. P Sagar, R Drake, S. A
Keywords:	Photometric Observations Stars Photometric X-ray ROSAT Coronal activity
Issue Date:	Mar-2002
Publisher:	Indian Academy of Sciences
Citation:	Journal of Astrophysics and Astronomy, Vol. 23, No. 1-2, pp. 9 - 14
Abstract:	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.
URI:	http://hdl.handle.net/2248/2733
ISSN:	0250-6335
Appears in Collections:	IIAP Publications

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