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Kinematics of Old Open Clusters
Publications of the Astronomical Society of the Pacific, 1988Radial velocities have been determined for six old open clusters in the Galactic anticenter. Moderate-resolution spectra were obtained for three to six giants in each of the clusters NGC 2141, 2158, 2204, 2243, 2420, and 2506, which yield cluster mean velocities good to about 15 km/s.
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Publications of the Astronomical Society of the Pacific, 1973
A new procedure is given for deriving the distribution of the orbital planes of binaries in clusters, based upon the statistics of the observed mass functions. Tables are provided for applications of the method. The procedure is applied to IC 4665 and an average inclination of 45 and a small dispersion of the inclinations is found.
O. Ferrer, C. Jaschek
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A new procedure is given for deriving the distribution of the orbital planes of binaries in clusters, based upon the statistics of the observed mass functions. Tables are provided for applications of the method. The procedure is applied to IC 4665 and an average inclination of 45 and a small dispersion of the inclinations is found.
O. Ferrer, C. Jaschek
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SPECTRAL TYPES IN OPEN CLUSTERS
Publications of the Astronomical Society of the Pacific, 1925This paper is reproduced from Publ. Astron. Soc. Pac., Vol. 37, p. 307 -318 (1925) to celebrate the centenary of the Publications. See also 004.048.
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2015
The observable properties of star clusters hold vital information concerning the star formation process. In this introductory chapter we review the properties of open clusters within the Galaxy. Starting with the most basic properties of open clusters, such as age, mass and metallicity, we then move onto a discussion of how these properties vary ...
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The observable properties of star clusters hold vital information concerning the star formation process. In this introductory chapter we review the properties of open clusters within the Galaxy. Starting with the most basic properties of open clusters, such as age, mass and metallicity, we then move onto a discussion of how these properties vary ...
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The Diameters of Open Clusters
Publications of the Astronomical Society of the Pacific, 1967The intrinsic diameters of the nine Trumpler classes of open clusters are reexamined. For unreddened or slightly reddened clusters, photometric data are used to find distances and intrinsic diameters of three Trumpler classes. An examination of reddened clusters of these classes indicates no systematic variation in the ratio of total to selective ...
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On the dynamics of open clusters
Astronomy Reports, 2011The kinematics of stars in open-cluster models are investigated. The central regions of these model clusters are fairly “cool, ” leading to gravitational instability in the cluster cores. A temporary virilization is observed in the model clusters, during which an appreciable fraction of the fluctuation energy of the cluster is temporarily transformed ...
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Open Clusters and Superbubbles
AIP Conference Proceedings, 2010This paper is the continuation of our work of 2008 concerning the open clusters (OCs) in system of the radio loops I–IV. In the present paper we have studied the location of OCs in relation to the Local Bubble, the Eridanus Superbubble and the Gum Nebula. As before, extremely low density of OCs from Kharchenko et al. and Dias et al.
Rakhil Shatsova, Marina Gozha
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