STRUCTURAL PARAMETERS FOR 10 HALO GLOBULAR CLUSTERS IN M33
نویسندگان
چکیده
منابع مشابه
SED, Metallicity and Age of Halo Globular Clusters in M33
In this paper we study the properties of ten halo globular clusters in the nearby spiral galaxy M33. CCD images of M33 were obtained as a part of the BATC Colour Survey of the sky in 13 intermediate-band filters from 3800 to 10000Å. By aperture photometry, we obtain the spectral energy distributions (SEDs) of these globular clusters. We estimate the ages of our sample clusters by comparing the ...
متن کاملStructural Parameters of the M87 Globular Clusters
We derive structural parameters for ∼ 2000 globular clusters in the giant Virgo elliptical M87 using extremely deep Hubble Space Telescope images in F606W (V) and F814W (I) taken with the ACS/WFC. The cluster scale sizes (half-light radii rh) and ellipticities are determined from PSF-convolved Kingmodel profile fitting. We find that the rh distribution closely resembles the inner Milky Way clus...
متن کاملHalo enrichment by disrupted globular clusters
We study the evolution of the galactic globular cluster system to determine its initial mass-function and the fraction of halo stars that could have come from disrupted globular clusters. We study the cluster evolution under the influence of two destruction mechanisms: Twobody relaxation and dynamical friction. New results of N -body simulations are used for the lifetimes of clusters dissolving...
متن کاملStructural Parameters for Globular Clusters in NGC 5128. II: HST/ACS Imaging and New Clusters
We report the first results from an imaging program with the ACS camera on HST designed to measure the structural characteristics of a wide range of globular clusters in NGC 5128, the nearest giant elliptical galaxy. From 12 ACS/WFC fields, we have measured a total of 62 previously known globular clusters and have discovered 69 new high-probability cluster candidates not found in any previous
متن کاملNewly Discovered Globular Clusters in the Outer Halo of M31
We present nine newly discovered globular clusters in the outer halo of M31, found by a semi-automated procedure from an INT Wide Field Camera survey of the region. The sample includes a candidate at the largest known projected galactocentric radius yet from M31.
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The Astronomical Journal
سال: 2015
ISSN: 1538-3881
DOI: 10.1088/0004-6256/149/5/157