کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5487838 | 1523726 | 2017 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Search for variables in six Galactic open clusters
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
نجوم و فیزیک نجومی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Search for variables in six Galactic open clusters Search for variables in six Galactic open clusters](/preview/png/5487838.png)
چکیده انگلیسی
Variables in open cluster (known distance, age, and metallicity) fields play an important role in stellar astrophysics because they allow to investigate the interior of stars. Therefore, six Galactic open clusters were selected to search for new variables and to complement data for already known variables. As five of these clusters are younger than 40 Myr, we aim at finding variable high-mass stars such as β Cephei and Slowly Pulsating B-type stars as well as classical pulsating stars within the instability strip. About 26 000 images (312 h) photometric images were taken at the 0.8 m (Vienna, Austria) and 1.0 m (Hvar, Croatia) telescope using V and I filters. The differential light curves were analyzed with standard time series analysis methods. In total, 11 variables were found in all investigated clusters. For nine of them, we were able to determine their nature and period. In addition, the membership probabilities from the literature were analyzed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: New Astronomy - Volume 52, April 2017, Pages 133-139
Journal: New Astronomy - Volume 52, April 2017, Pages 133-139
نویسندگان
Ernst Paunzen, Gerald Handler, Monika Lendl, Bernhard Baumann, Christian Rab, Stefan Meingast, Monika Rode-Paunzen, Martin Netopil, Victoria Antoci, Liying Zhu, Miloslav Zejda, Hrvoje BožiÄ,