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Evolution and Distribution of Magnetic Fields from AGNs in Galaxy Clusters II. The Effects of Cluster Size and Dynamical State
Galaxy Clusters Effects Cluster Size Dynamical State
2011/10/9
Theory and simulations suggest that magnetic fields from radio jets and lobes powered by their central super massive black holes can be an important source of magnetic fields in the galaxy clusters. T...
HST-ACS photometry of the isolated dwarf galaxy VV124=UGC4879. Detection of the Blue Horizontal Branch and identification of two young star clusters
Galaxies: dwarf — Galaxies: Local Group — Galaxies: structure — Galaxies: stellar content — Galaxies: ISM —Galaxies: individual
2011/10/8
We present deep V and I photometry of the isolated dwarf galaxy VV124=UGC4879, obtained from archival images taken with the Hubble Space Telescope - Advanced Camera for Surveys. In the color-magnitude...
We investigate the origin of the color-magnitude relation (CMR) observed in cluster galaxies by using a combination of a cosmological N-body simulation of a cluster of galaxies and a semi-analytic mod...
A non-ideal MHD Gadget: Simulating massive galaxy clusters
MHD - magnetic fi elds - methods: numerical - galax- ies: clusters
2011/9/28
Magnetic fields in the intra-cluster medium of galaxy clusters have been studied in the past years through different methods. In the next years the up-coming generation of radio telescopes is going to...
Spectra of globular clusters in the Sombrero galaxy: evidence for spectroscopic metallicity bimodality
globular clusters: general galaxies: individual: Sombrero (M104: NGC4594) galaxies: star clusters
2011/9/28
We present a large sample of over 200 integrated-light spectra of confirmed globular clusters (GCs) associated with the Sombrero (M104) galaxy taken with the DEIMOS instrument on the Keck telescope. A...
Do giant spiral galaxies thwart clusters of young stars?（图）
giant spiral galaxies clusters young stars
2010/11/30
Astronomers in Scotland and Germany say simple physics may explain a long-standing paradox: why large clusters of young stars tend to reside in relatively small galaxies and not in giants like the Mil...
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。
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。
Young stars far from the galactic plane：runaways from Clusters
Young star Clusters galactic plane
2009/6/16
Young stars far from the galactic plane：runaways from Clusters。
Low Mass Stars and Brown Dwarfs in Open Clusters
Low Mass Stars Brown Dwarfs Open Clusters
2009/6/12
Low Mass Stars and Brown Dwarfs in Open Clusters。
Dynamical Evolution of Clusters of Galaxies。
Radial velocities, binarity, and kinematic membership in open clusters with blue straggler candidates
Radial velocities binarity kinematic membership open clusters
2009/6/10
Radial velocities, binarity, and kinematic membership in open clusters with blue straggler candidates。