Results 21 to 30 of about 443,609 (315)
Diameters of Open Star Clusters [PDF]
The Astronomical Journal, 2006 Astronomical Journal, in ...
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STELLAR INVESTIGATION IN THE OPEN CLUSTER OF POLARIS
Odessa Astronomical Publications, 2008 We present the results of our analysis of high-resolution spectroscopic observations of Cepheid α UMi (Polaris A), and main-sequence type stars Polaris B, and HD 5914, an optical companion and a member of Polaris open cluster.
I. A. Usenko +3 more
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The Astrophysical Journal, 2023 We consider WIYN/Hydra spectra of 329 photometric candidate members of the 420 Myr old open cluster M48 and report lithium detections or upper limits for 234 members and likely members.
Qinghui Sun +4 more
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Asteroseismology in Open Clusters [PDF]
International Astronomical Union Colloquium, 1995 Within two groups or networks we are trying to build the observational fundamentals for better tests of stellar evolution. The first group is STACC (Small Telescope Array with CCD Cameras) and the second the EU HCM program ANTENA (involving institutes in Spain, France and Denmark).The first information needed is photometric data.
J.A. Belmonte +3 more
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SS Lac in Open Cluster NGC 7209 [PDF]
Journal of Astronomy and Space Sciences, 1997 We present IUE observations in far ultraviolet region for SS Lac in open cluster NGC 7209. The IUE short wavelength spectrum and long wavelength spectrum were merged to produce an energy distribution curve between 1200A and 3200A.
Young Woon Kang
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The Dynamics of Open Clusters [PDF]
Symposium - International Astronomical Union, 1987 Many of the “observations” of dark matter involve the application of the virial theorem or more sophisticated dynamical models to bound gravitational systems. Such studies often adopt a certain mass function and assume that the system is in a state near equipartition.
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Smart Cities and Regional Development Journal, 2019 This research tries to answer the question “How does the Hofstede`s Model of societal cultural differences relate to the development of EU countries e-government and open government?â€. This question of interest in the research comes from the growing
Hari Stankov NIKOLOV +1 more
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Open clusters in Auriga OB2 [PDF]
Monthly Notices of the Royal Astronomical Society, 2016 We study the area around the H ii region Sh 2-234, including the young open cluster Stock 8, to investigate the extent and definition of the association Aur OB2 and the possible role of triggering in massive cluster formation. We obtained Strömgren and J, H, KS photometry for Stock 8 and Strömgren photometry for two other cluster candidates in the area,
A. Marco, A. Marco, Ignacio Negueruela
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POLARIS (α UMi),- MULTISTELLAR SYSTEM IN THE OPEN CLUSTER
Odessa Astronomical Publications, 2007 We present the results of our analysis of high-resolution spectroscopic observations of Cepheid α UMi (Polaris A) and main-sequence type stars Polaris B and HD 5914, - optical companion and a member of Polaris open cluster. The last ones are objects with
I. A. Usenko +3 more
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A revised moving cluster distance to the Pleiades open cluster [PDF]
Astronomy & Astrophysics, 2017 Context.The distance to the Pleiades open cluster has been extensively debated in the literature over several decades. Although different methods point to a discrepancy in the trigonometric parallaxes produced by the Hipparcosmission, the number of individual stars with known distances is still small compared to the number of cluster members to help ...
Phillip A. B. Galli +11 more
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