Newly identified star clusters in M33 - III. Structural parameters
نویسندگان
چکیده
منابع مشابه
Newly Identified Star Clusters in M33. I. Integrated Photometry and Color-Magnitude Diagrams
We present integrated photometry and color-magnitude diagrams (CMDs) for 24 star clusters in M33, of which 12 were previously uncataloged. These results are based on Advanced Camera for Surveys observations from the Hubble Space Telescope of two fields in M33. Our integrated V magnitudes and V–I colors for the previously identified objects are in good agreement with previously published photome...
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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 کاملStructural Parameters from Ground - based Observations of Newly Discovered Globular Clusters in NGC 5128
We have investigated a number of globular cluster candidates from a recent wide-field study by Harris et al. (2004a) of the giant elliptical galaxy NGC 5128. We used the Magellan I telescope + MagIC camera under excellent seeing conditions (0.3′′ −0.6′′) and obtained very high resolution images for a sample of 44 candidates. Of these, 15 appear to be bonafide globular clusters in NGC 5128 while...
متن کاملScaling relations in dynamical evolution of star clusters
We have carried out a series of small scale collisional N-body calculations of single-mass star clusters to investigate the dependence of the lifetime of star clusters on their initial parameters. Our models move through an external galaxy potential with a logarithmic density profile and they are limited by a cut-off radius. In order to find scaling relations between the lifetime of star cluste...
متن کاملThe Stellar Populations of M33’s Outer Regions Iii: Star Formation History
We present a detailed analysis of the star formation history (SFH) of three fields in M33 located ∼ 4 − 6 visual scale lengths from its nucleus. These fields were imaged with the Advanced Camera for Surveys on the Hubble Space Telescope and reach ∼ 2.5 magnitudes below the red clump of core helium burning stars. The observed color-magnitude diagrams are modeled as linear combinations of individ...
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ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 2012
ISSN: 0035-8711
DOI: 10.1111/j.1365-2966.2012.21400.x