Kinematics of the Gould Belt based on open clusters
نویسندگان
چکیده
منابع مشابه
The Kinematics and Nature of Gould ' S Belt � a 30 Myr Old
For a sample of 2440 non-supergiant Hipparcos stars belonging to Strr omgren's `early group' luminosities, temperatures, ages and distances have been determined. 241 stars younger than 30 Myr with well determined ages and space velocities fall within the local attened system, inclined 20 o to the galactic plane, called Gould's Belt. The system is dominated by a number of nearby prominent associ...
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We present new population synthesis calculations of close young neutron stars. In comparison with our previous investigation we use a different neutron star mass spectrum and different initial spatial and velocity distributions. The results confirm that most of ROSAT dim radioquiet isolated neutron stars had their origin in the Gould Belt. Several tens of young neutron stars can be identified i...
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Stellar kinematic groups (SKG) are kinematically coherent groups of stars that share a common origin. We have compiled (Montes et al. 1999; 2000) a sample of late-type stars of previously established members and possible new candidates to different young SKG Myr)). In order to better understand the origin of these young SKG, and to be able to identify late-type stars members of the classical an...
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this study examines the effetivenss of task-based activities in helping students learn english language structures for a better communication. initially, a michigan test was administered to the two groups of 52 students majoring in english at the allameh ghotb -e- ravandi university to ensure their homogeneity. the students scores on the grammar part of this test were also regarded as their pre...
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ژورنال
عنوان ژورنال: Astronomy Letters
سال: 2006
ISSN: 1063-7737,1562-6873
DOI: 10.1134/s1063773706120036