Internal Dynamics of Magellanic Cloud Clusters
نویسندگان
چکیده
منابع مشابه
The ellipticities of Galactic and Large Magellanic Cloud globular clusters
The correlations between the ellipticity and the age and mass of LMC globular clusters are examined, and both are found to be weak. It is concluded that neither of these properties is mainly responsible for the observed differences in the LMC and Galactic globular cluster ellipticity distributions. Most importantly, age cannot be the primary factor in the LMCGalaxy ellipticity differences, even...
متن کاملThe Star Clusters of the Small Magellanic Cloud: Age Distribution
We present age measurements for 195 star clusters in the Small Magellanic Cloud based on comparison of integrated colors measured from the Magellanic Clouds Photometric Survey with models of simple stellar populations. We find that the modeled nonuniform changes of cluster colors with age can lead to spurious age peaks in the cluster age distribution, that the observed numbers of clusters with ...
متن کاملThe Age of Old Magellanic Cloud Clusters . I : NGC 2257
Deep CCD photometry down to V 24:5 is presented for the old globular cluster NGC 2257 in the Large Magellanic Cloud. The main results of this study can be summarized as follows: i) the Red Giant Branch (RGB) Bump has been detected at V = 18:70:1, and it is compatible with determination of this feature in Galactic Globular Clusters; ii) using the currently accepted methods of dating Globular Clu...
متن کاملThe Star Clusters of the Small Magellanic Cloud: Structural Parameters
We present structural parameters for 204 stellar clusters in the Small Magellanic Cloud derived from fitting King and Elson, Fall, & Freeman model profiles to the V-band surface brightness profiles as measured from the Magellanic Clouds Photometric Survey images. Both King and EFF profiles are satisfactory fits to the majority of the profiles although King profiles are generally slightly superi...
متن کاملMagellanic Cloud Star Clusters as Simple Stellar Populations
Integrated spectra have been obtained of 31 star clusters in the Magellanic Clouds (MC) and of 4 Galactic globular clusters. The spectra cover the wavelength range λλ3500 – 4700 Å at a resolution of 3.2 Å FWHM. The MC clusters primarily cover the age range <10 – 3 Gyr, and hence are well-suited to an empirical study of aging post-starburst stellar populations. An age-dating method is presented ...
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ژورنال
عنوان ژورنال: Symposium - International Astronomical Union
سال: 1988
ISSN: 0074-1809
DOI: 10.1017/s0074180900043096