Astrophysical parameters of ten poorly studied open star clusters
نویسندگان
چکیده
منابع مشابه
Astrophysical Parameters of Galactic Open Clusters
We present a catalogue of astrophysical data of 520 Galactic open clusters. These are the clusters, for which at least three most probable members (18 on average) could be identified in the ASCC-2.5, a catalogue of stars based on the Tycho-2 observations from the Hipparcos mission. We applied homogeneous methods and algorithms to determine angular sizes of cluster cores and coronae, heliocentri...
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Currently available data on the field of velocities Vr, Vl, Vb for open star clusters are used to perform a kinematic analysis of various samples that differ by heliocentric distance, age, and membership in individual structures (the Orion, Carina–Sagittarius, and Perseus arms). Based on 375 clusters located within 5 kpc of the Sun with ages up to 1 Gyr, we have determined the Galactic rotation...
متن کاملBe stars in open clusters III. A uvbyβ calibration for the astrophysical parameters of Be stars
We present linear relations between the equivalent widths of the Balmer lines of Be stars and the anomalies in the uvby photometric indices produced by continuum circumstellar emission. A similar relation exists when the emission in the Hβ line is measured through the photometric β index. These relations have been used to elaborate an empirical calibration of the uvbyβ photometric system to det...
متن کاملPhotographic photometries and astrophysical parameters of the open clusters NGC 1750 and NGC 1758
BV photographic photometries of 789 stars in the region of the open clusters NGC1750 and NGC1758 are derived from a set of 8 photometric plates. According to the astronomical data including proper motions, positions and membership probabilities of individual stars, several astrophysical parameters for these two clusters are determined, such as HR diagrams, ages, distances, lu-minosity functions...
متن کاملAge Determinations of the Open Star Clusters
We based on 2MASS J and Ks photometry for the open star clusters King 14 and NGC 146, and using color magnitude diagrams with isochrones fit we have found an age of log(age) = 7.8 (63 8 Myr) for King 14 and log(age) = 7.5 (32 8 Myr) for NGC 146. Our age determination is bigger than given in Lynga [5] ( log(age) = 7.2 for King 14 and log(age) = 7.1 for NGC 146 ) and less than Dias [6] ( log(ag...
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ژورنال
عنوان ژورنال: Research in Astronomy and Astrophysics
سال: 2012
ISSN: 1674-4527
DOI: 10.1088/1674-4527/12/1/006