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Titlebook: Dynamics of Star Clusters; Proceeding of the 11 Jeremy Goodman,Piet Hut Conference proceedings 1985 International Astronomical Union 1985 C

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發(fā)表于 2025-3-21 16:07:50 | 只看該作者 |倒序?yàn)g覽 |閱讀模式
書目名稱Dynamics of Star Clusters
副標(biāo)題Proceeding of the 11
編輯Jeremy Goodman,Piet Hut
視頻videohttp://file.papertrans.cn/285/284181/284181.mp4
叢書名稱International Astronomical Union Symposia
圖書封面Titlebook: Dynamics of Star Clusters; Proceeding of the 11 Jeremy Goodman,Piet Hut Conference proceedings 1985 International Astronomical Union 1985 C
描述The emphasis in these proceedings of lAD Symposium No. 113, Dynafrri-,‘!s of Star Clusters. and·.~.Le. mab rPIHlon for orZ‘lnizinp: thE" symposium in the spring of 1984, was the rapid increase during the preceeding year in our understanding of core collapse. The last I.A.D. Symposium to discuss the dynamics of star clusters at length was No.69, Dynamics of Stellar Systems~ held in Besan~on in 1974. For a few years afterwards, globular clusters receiveu much attention due to the discovery of X-ray bursters and the mounting evidence that X-ray sources in globular clusters were formed in completely different ways than those within our galaxy. Globular clusters, which until this time had a reputation for sedate old age, turned out to lead violent private lives at high energies. However, in the early 80‘s globular clusters seemed to lose some of the glamor of the 70‘s. The grand speculations of heavy black holes lurking in their centers had to make way for a variety of observational evidence which indicated that the X-ray sources are low-mass close binaries instead. But, though dynamical fashion turned to heavy galac- tic halos and so on, some of the unsolved theoretical problems regard
出版日期Conference proceedings 1985
關(guān)鍵詞CCD; Galaxy; black hole; photometry; star; stellar; telescope
版次1
doihttps://doi.org/10.1007/978-94-009-5335-2
isbn_softcover978-90-277-1965-2
isbn_ebook978-94-009-5335-2Series ISSN 1743-9213 Series E-ISSN 2352-2186
issn_series 1743-9213
copyrightInternational Astronomical Union 1985
The information of publication is updating

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板凳
發(fā)表于 2025-3-22 03:41:12 | 只看該作者
A High Spatial Resolution Investigation of the Core of Some Dynamically Evolved Globular Clusterses reaches 0.5 on the best plates). Good plates of M 79, M 53, M 3, M 5, M 13, M 92, NGC 6397, M 15, M 2 and M 30 were obtained (Aurière and Cordoni, 1983, Astron. Astrophys. Suppl. Ser. ., 383 and references therein). The observations are mainly obtained at the 2 m and 1 m Cassegrain telescopes of
地板
發(fā)表于 2025-3-22 06:33:55 | 只看該作者
5#
發(fā)表于 2025-3-22 12:12:39 | 只看該作者
A Search for Post-Collapse Coresd, and two possible candidates. The estimated fraction of clusters with this core morphology in the Galaxy is only a few percent. Most clusters do not show a morphology similar to the predictions of the central black hole models.
6#
發(fā)表于 2025-3-22 14:09:41 | 只看該作者
Observed Dynamical Parameters of Star Clusters in the SMCopen clusters whereas the “halo” red clusters are less massive and younger than the galactic globulars (Kontizas, Danezis, Kontizas, 1982; Kontizas and Kontizas, 1983). (b) All clusters show density profiles that fit the available theoretical models (King, 1962) giving evidence of relaxed systems, e
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發(fā)表于 2025-3-22 19:48:47 | 只看該作者
8#
發(fā)表于 2025-3-22 21:25:10 | 只看該作者
Rotational Field and Velocity Dispersion in Globular Clusters: ω Cen and 47 Tucrom the centre to the edge and the ordered to random motions ratios are deduced for two globular clusters: ω Cen and 47 Tuc. Masses through virial theorem and M/L ratios are also given. A more comprehensive study will be published in Astron. & Astrophys.
9#
發(fā)表于 2025-3-23 04:33:54 | 只看該作者
BV Concentric Aperture Photometry of Globular Clustersto measurement error are the centering of apertures in the oftentimes diffuse cores of clusters, the random distribution of bright stars near the cluster centers, and the determination of an adequate sky correction in fields badly crowded by foreground stars. These problems have been well-discussed
10#
發(fā)表于 2025-3-23 08:32:36 | 只看該作者
An Extension of the Search for Spectroscopic Binaries in M3a typical accuracy of 0.8 km/s per measurement and have been combined with the Gunn and Griffin data in order to search for radial velocity variations over a time span of ten years. We find no convincing evidence that any of the giants observed are spectroscopic binaries with one notable exception,
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