Pandey, J. C. ; Singh, K. P. ; Sagar, R. ; Drake, S. A. (2002) Photometric variability of four coronally active stars Journal of Astrophysics and Astronomy, 23 (1-2). pp. 9-14. ISSN 0250-6335
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Official URL: http://www.ias.ac.in/jaa/marjun2002/pdf/Jaa300.pdf
Related URL: http://dx.doi.org/10.1007/BF02702457
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.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Indian Academy of Sciences. |
| Keywords: | Stars-variable; Optical Photometry; X-rays-source |
| ID Code: | 58991 |
| Deposited On: | 02 Sep 2011 05:40 |
| Last Modified: | 18 May 2016 09:42 |
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