Journal of Astronomy and Space Sciences
- Volume 13 Issue 1
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- Pages.1-8
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- 1996
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- 2093-5587(pISSN)
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- 2093-1409(eISSN)
CCD PHOTOMETRY OF FIELD RR LYRAE STARS I. PERIOD CHANGES OF SV ERI AND XX AND
- Joo, Jong-Myung (Astronomy Program, Yonsei University) ;
- Rey, Soo-Chang (Astronomy Program, Yonsei University) ;
- Lee, Young-Wook (Astronomy Program, Yonsei University)
- Published : 1996.06.01
Abstract
CCD time series photometry was performed for two Oosterhoff type II field RR Lyrae stars, SV Eri and XX And, to construct light curves in B and V bands. The maximum light times from our observations were combined with those in the literature to construct phase shift diagrams, from which we determined the period change rates
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