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Optical Redshift and Richness Estimates for Galaxy Clusters Selected with the Sunyaev-Zel'dovich Effect from 2008 South Pole Telescope Observations
galaxies clusters individual ]cosmology observations
2010/3/9
We present redshifts and optical richness properties of 21 galaxy clusters uniformly selected by their Sunyaev-Zel'dovich signature. These clusters, plus an additional, unconfirmed candidate, were det...
Galaxy Clusters Selected with the Sunyaev-Zel'dovich Effect from 2008 South Pole Telescope Observations
galaxies clusters individual cosmology observations
2010/3/9
We present a detection-significance-limited catalog of 21 Sunyaev-Zel'dovich selected galaxy clusters. These clusters, along with 1 unconfirmed candidate, were identified in 178 deg^2 of sky surveyed ...
Gamma rays and neutrinos from dark matter annihilation in galaxy clusters
dark matter Gamma rays galaxy clusters
2010/3/9
The $\gamma$-ray and neutrino emissions from dark matter (DM) annihilation in galaxy clusters are studied. After about one year operation of Fermi-LAT, several nearby clusters are reported with string...
Spectroscopic Confirmation of Three Red-Sequence Selected Galaxy Clusters at z=0.87, 1.16 and 1.21 from the SpARCS Survey
galaxies clusters general galaxies clusters individual
2010/3/9
The Spitzer Adaptation of the Red-sequence Cluster Survey (SpARCS) is a z'-passband imaging survey of the 50 deg^2 Spitzer SWIRE Legacy fields, designed with the primary aim of creating the first larg...
Assessment of Stellar Stratification in Three Young Star Clusters in the Large Magellanic Cloud
Magellanic Clouds galaxies star clusters globular clusters individual NGC 1983,NGC 2002, NGC 2010 Hertzsprung-Russell diagram Methods statistical stellar dynamics
2010/3/8
(abridged) We present a comprehensive study of stellar stratification in young star clusters in the Large Magellanic Cloud (LMC). We apply our recently developed effective radius method for the assess...
Calcium and light-elements abundance variations from high resolution spectroscopy in globular clusters
abundances stars evolution globular clusters general
2010/3/8
We use abundances of Ca, O, Na, Al from high resolution UVES spectra of 200 red giants in 17 globular clusters (GCs) to investigate the correlation found by Lee et al. (2009) between chemical enrichme...
On the nature of the open clusters in the direction of ngc 6882/5
open clusters ngc 6882/5
2009/7/10
On the nature of the open clusters in the direction of ngc 6882/5。
A catalogue of high redshift clusters。
Lyα emitters as tracers of proto-clusters of galaxies at high-z：rlqsos and RQQSOs environment
Lyα emitters proto-clusters high-z
2009/7/1
Lyα emitters as tracers of proto-clusters of galaxies at high-z：rlqsos and RQQSOs environment。
Spectroscopic Study of the Globular Clusters in M31。
Embedded clusters：laboratories for star formation。
Galactic Orbits of Globular Clusters in a Barred Galaxy
Galactic Orbits Barred Galaxy Globular Clusters
2009/6/26
Galactic Orbits of Globular Clusters in a Barred Galaxy。
The dynamical state of massive galaxy clusters。
Searching for High Redshift Clusters。