The first CCD photometric study of the open cluster NGC 744

التفاصيل البيبلوغرافية
العنوان: The first CCD photometric study of the open cluster NGC 744
المؤلفون: Qi-Li Liu, Zhengzhou Yan, Licai Deng, Zhiquan Luo, Kun Wang, Jin-Jiang Sun, Q. Zhou
المصدر: Research in Astronomy and Astrophysics. 18:139
بيانات النشر: IOP Publishing, 2018.
سنة النشر: 2018
مصطلحات موضوعية: Physics, Astronomy and Astrophysics, Astrophysics, 01 natural sciences, Photometry (optics), 03 medical and health sciences, Distance modulus, 0302 clinical medicine, Space and Planetary Science, 0103 physical sciences, Binary star, Variable star, 010303 astronomy & astrophysics, 030217 neurology & neurosurgery, Open cluster
الوصف: We present the first CCD photometric observations of open cluster NGC 744, as part of the 50BiN Open Cluster Survey. The color-magnitude diagrams of this cluster were derived from absolute BV RI photometry on a good photometric night. A brief isochrone fitting gives a distance modulus of (m − M) V = 11.58 ± 0.2 and a reddening of E(B − V) = 0.35 ± 0.05 with an age of log t = 8.30 ± 0.05. By carefully examining the BV time-series data, we discovered four new variable stars in a 20' × 20' field around the cluster. We classified them as three eclipsing binary stars and one δ Scuti pulsating star, mainly based on the light-curve shape, the detected periods and the positions on the color-magnitude diagrams.
تدمد: 1674-4527
DOI: 10.1088/1674-4527/18/11/139
URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_________::62463e053258ef06f61a05eb716a078a
https://doi.org/10.1088/1674-4527/18/11/139
Rights: CLOSED
رقم الانضمام: edsair.doi...........62463e053258ef06f61a05eb716a078a
قاعدة البيانات: OpenAIRE
الوصف
تدمد:16744527
DOI:10.1088/1674-4527/18/11/139