دورية أكاديمية
CCD Photometry of Field RR Lyrae Stars. I. Period Changes of SV ERI and XX and
| العنوان: | CCD Photometry of Field RR Lyrae Stars. I. Period Changes of SV ERI and XX and |
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| المؤلفون: | Jong-Myung Joo, Soo-Chang Rey, Young-Wook Lee |
| المصدر: | Journal of Astronomy and Space Sciences, Vol 13, Iss 1, Pp 1-8 (1996) |
| بيانات النشر: | The Korean Space Science Society, 1996. |
| سنة النشر: | 1996 |
| المجموعة: | LCC:Astronomy |
| مصطلحات موضوعية: | Astronomy, QB1-991 |
| الوصف: | 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 β. We obtained large positive period change rates for these stars, which are expected from current evolutionary models if these stars are evolving rapidly from blue to red toward the end of core helium burning phase. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 2093-5587 2093-1409 |
| Relation: | http://ocean.kisti.re.kr/downfile/volume/kosss/OJOOBS/1996/v13n1/OJOOBS_1996_v13n1_1.pdf; https://doaj.org/toc/2093-5587; https://doaj.org/toc/2093-1409 |
| URL الوصول: | https://doaj.org/article/2e15e6cc345241c094b0babc20c5b050 |
| رقم الأكسشن: | edsdoj.2e15e6cc345241c094b0babc20c5b050 |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 20935587 20931409 |
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