Detection of Variable Stars in the Open Cluster M11 Using Difference Image Analysis Pipeline
نویسندگان
چکیده
منابع مشابه
Variable stars in the field of the old open cluster
We report the results of photometric monitoring of the Melotte 66 field in BVI filters. Ten variables were identified with nine being new discoveries. The sample includes eight eclipsing binaries of which four are W UMa type stars, one star is a candidate blue straggler. All four contact binaries are likely members of the cluster based on their estimated distances. Ten blue stars with U −B < −0...
متن کاملPhotometric Study of Variable Stars in the Open Cluster NGC
We report the discovery of 19 variable stars and two blue–stragglers in the field of the open cluster NGC 6866. Three of the variable stars we classify as δ Sct, two, as γ Dor, four, as W UMa, two, as ellipsoidal variables, and one, as an eclipsing binary. Seven stars show irregular variability. Two of the pulsators, a δ Sct star NGC 6866-29 and a γ Dor star NGC 6866-21, are multiperiodic. From...
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اندیشمندان و صاحب نظران علوم اجتماعی بر این باورند که مرحله تازه ای در تاریخ جوامع بشری اغاز شده است. ویژگیهای این جامعه نو را می توان پدیده هایی از جمله اقتصاد اطلاعاتی جهانی ، هندسه متغیر شبکه ای، فرهنگ مجاز واقعی ، توسعه حیرت انگیز فناوری های دیجیتال، خدمات پیوسته و نیز فشردگی زمان و مکان برشمرد. از سوی دیگر قدرت به عنوان موضوع اصلی علم سیاست جایگاه مهمی در روابط انسانی دارد، قدرت و بازتولید...
15 صفحه اولSearch for variable stars in the open cluster NGC 7654
Time-series CCD photometry of the open cluster NGC 7654 was performed over five nights from October 2nd to 18th, 1997 U.T., in order to search for new variable stars. We also carried out UBV photometric observations to obtain physical parameters of variable stars in the cluster. We have derived the distance modulus of (V − MV )◦ = 10.9 ± 0.2 and the interstellar reddening of E(B − V ) = 0.62 ± ...
متن کاملVariable stars in the open cluster Mel 71
The UBVI and time-series CCD photometric observations of the intermediate-age open cluster Mel 71 were carried out to search for variable stars and obtain their physical parameters. By fitting the ZAMS to the observed color-color and color-magnitude diagrams, we estimated a reddening value of the cluster E(B−V) = 0.20 ± 0.05 and a distance modulus (V−M V) • = 11.6 ± 0.2. We also found its age o...
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ژورنال
عنوان ژورنال: Journal of Astronomy and Space Sciences
سال: 2010
ISSN: 2093-5587
DOI: 10.5140/jass.2010.27.4.289