Galaxies: dwarf
Dynamical masses of ultra compact dwarf galaxies in Fornax
... (dwarf) galaxies detailed analysis of the chemical composition and age structure of the stellar pop- ulation in UCDs might ...of dwarf ellipticals seemed to have formed in a rather continuous way ...
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Proper motions of dwarf spheroidal galaxies from Hubble Space Telescope imaging V Final measurement for Fornax
... these galaxies are surviving substructure, predicted by cold dark matter cos- ...satellite galaxies and globular clusters move along similar orbits; they are members of a ‘‘stream’’ formed when the tidal ...
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Globular cluster systems in nearby dwarf galaxies II Nuclear star clusters and their relation to massive Galactic globular clusters
... The few existing observations of star clusters in late-type dwarfs show that the majority of the star clusters located in the nuclear regions (the inner 500 pc) of nearby dIrrs (e.g. M 82, NGC 1705) are found to be ...
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A search for ultra compact dwarf galaxies in the Centaurus galaxy cluster
... Fig. 8. Lick index Fe plotted vs. Mgb. Large, green filled circles are Centaurus compact objects with S / N > 30, small green filled circles those with S / N < 30. At the top, the left error bar indicates the ...
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A Radio Continuum Study of Dwarf Galaxies: 6 cm Imaging of LITTLE THINGS
... Our images were generated using a restoring beam of approximately 3 ″ and attained an rms noise of ∼ 6 μ Jy beam −1 . Therefore, the sensitivity per beam in our data is comparable to that from Huynh et al. ( 2012 ) . We ...
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A Collection of New Dwarf Galaxies in NGC 5128's Western Halo
... brightest dwarf galaxies reported in the Fornax sample, but such luminous dwarf galaxies are simply not found in other LV galaxy complexes that are — like NGC 5128 — signi fi cantly less ...
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Globular cluster systems in nearby dwarf galaxies III Formation efficiencies of old globular clusters
... peculiar/irregular galaxies increases with redshift ...cD galaxies have smaller dwarf-to-giant ratios than non-cD clusters (Lopez-Cruz et ...massive galaxies is likely non- negligible, ...
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Abundance ratios of red giants in low mass ultra faint dwarf spheroidal galaxies
... ultra-faint dwarf spheroidal galaxies is therefore an important tool to probe the early evolution of the Local ...five galaxies, only two (Leo IV and Hercules) are consistent with the hypothesis that ...
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Globular cluster systems in nearby dwarf galaxies I HST/ACS observations and dynamical properties of globular clusters at low environmental density
... of dwarf galaxies and their dis- solution in the Galactic potential are manifested by a few tidal stellar streams observed in the Milky Way, M31, and other nearby galaxies ...Sagittarius dwarf ...
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Dynamical versus stellar masses of ultracompact dwarf galaxies in the Fornax cluster star
... type galaxies and CSSs. The giant galaxies are repre- sented by 140 early-type galaxies in the Coma cluster from SDSS DR7 (Abazajian et ...group dwarf spheroidals from Mateo (1998) are at the ...
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VLT Spectroscopy of Globular Clusters in Low Surface Brightness Dwarf Galaxies
... low-mass dwarf galaxies (SPM05), situated at distances 2 Y 6 Mpc in the Local Volume, revealed a rich population of glob- ular cluster candidates ...these galaxies with the VLT/FORS2 spectrograph in ...
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Old Globular Clusters in Magellanic Type Dwarf Irregular Galaxies
... Analyzing GCs’ metallicities and horizontal branch (HB) morphologies, Zinn (1993) proposed a sub-classification of the Milky Way (MW) GCS into three populations—bulge/disk (BD), old halo (OH), and young halo (YH), where ...
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A Study of Two Dwarf Irregular Galaxies with Asymmetrical Star Formation Distributions
... Figure 5. Kennicutt – Schmidt relation of SFR surface density vs. gas surface density for azimuthally averaged annuli and sub-kiloparsec-sized regions within galaxies. The plot is adopted from Figure 1 of ...
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Origin of the Milky Way disk of satellites: collision of two disk galaxies
... observed galaxies in the DoS is 1 kpc (Figure ...of dwarf galaxies in the 12% mass ratio scenario is compatible with observations, the obtained groups are much closer to the Milky Way center than ...
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The Next Generation Fornax Survey (NGFS) II The Central Dwarf Galaxy Population
... Elliptical galaxies are known to fall on a so-called fundamental plane ( FP ) , a tight correlation between effective radius, central velocity dispersion, and the average effective surface brightness within the ...
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Chemodynamics of compact stellar systems in NGC 5128: How similar are globular clusters ultra compact dwarfs and dwarfs galaxies?
... ultra-compact dwarf galaxies ...in dwarf elliptical galaxies and UCDs better than those of Local Group GCs, and that all objects share similarly old (8 Gyr) ages, suggesting a possible link ...
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Discovery of Ram pressure stripped gas around an Elliptical Galaxy in Abell 2670
... The true origin of the star-forming blobs is uncertain. In other jelly fi sh systems, often the star-forming blobs external to the galaxy are found in a narrow strip, directly downwind of a galaxy that is undergoing ...
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Ages and Heavy Element Abundances from Very Metal poor Stars in the Sagittarius Dwarf Galaxy
... Sgr seems to host stars with a broad range of s-process enhancements spanning from the s-rich star Sgr J190651.47 – 320147.23 to s-normal very metal-poor stars ( such as Sgr 2300275 ) . Sgr J190651.47 – 320147.23 could ...
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The Hubble Space Telescope Advanced Camera for Surveys Coma Cluster Survey I Survey Objectives and Design
... of dwarf and giant galaxies directly reflects their merging history: monolithic collapse imposes an initially steep negative metallicity gradient (Carlberg 1984), which will be progressively diluted by ...
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MagAO IMAGING OF LONG PERIOD OBJECTS (MILO) I A BENCHMARK M DWARF COMPANION EXCITING A MASSIVE PLANET AROUND THE SUN LIKE STAR HD 7449
... that also host eccentric planets ( Lagrange et al. 2006; Neuhäuser et al. 2007; Howard et al. 2010; Chauvin et al. 2011 ) . Schnupp et al. ( 2010 ) directly imaged an M dwarf companion to a star that showed a ...
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