Results 91 to 100 of about 1,735 (217)
A Study of Abundance Patterns in the Sextans and Sculptor Dwarf Spheroidal Galaxies
The Astrophysical JournalIn this work, we employ a multicomponent decomposition model to study the Sextans and Sculptor dwarf spheroidal galaxies, which have distinct evolutionary histories.
Shuaishuai Yang +3 more
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Dynamics of the Fornax Dwarf Spheroidal Galaxy [PDF]
Symposium - International Astronomical Union, 1987 The mass to light ratio of the inner parts of the Fornax system is 3.2 ± 1.1. Its major axis rotation is only 3.4 ± 2.4 km s-1 over ± 1 kpc, which argues against its origin as a stripped dwarf irregular.
George Paltoglou, K.C. Freeman
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UVES abundances of stars in nearby dwarf spheroidal galaxies [PDF]
, 2002 It is a truth universally acknowledged, that a galaxy in possession of a good quantity of gas must want to form stars. It is the details of how and why that baffle us all.
Shetrone, M +7 more
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Globular Cluster Distributions as a Dynamical Probe of Dark Matter
The Astrophysical JournalGlobular clusters (GCs) act as massive probe particles traversing the dark matter halos of their host galaxies. Gravitational dynamical friction due to halo particles causes GC orbits to contract over time, providing a beyond-mean field test of the cold ...
Nativ Ben-Yeda, Kfir Blum, Inbar Havilio
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The evolution of the photometric properties of Local Group dwarf spheroidal galaxies [PDF]
, 2008 Aims. We investigate the present-day photometric properties of the dwarf spheroidal galaxies in the Local Group. From the analysis of their integrated colours, we consider a possible link between dwarf spheroidals and giant ellipticals.
G. A. Lanfranchi +2 more
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Can Dwarf Spheroidal Galaxies Host a Central Black Hole?
The Astrophysical JournalWe construct mass models of Milky Way dwarf spheroidal galaxies to place constraints on the central black hole masses they can host. We model the galaxies as a three-component system consisting of the stars, dark matter halo, and a central black hole ...
K. Aditya, A. Mangalam
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Impulsive Mixing of Stellar Populations in Dwarf Spheroidal Galaxies
The Astrophysical JournalWe study the response of mono-energetic stellar populations with initially isotropic kinematics to impulsive and adiabatic changes to an underlying dark matter potential.
Raphaël Errani +4 more
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The Astronomical JournalWe present our photometric method, which combines Subaru/Hyper Suprime-Cam N B 515, g -band, and i- band filters to distinguish giant stars in Local Group galaxies from Milky Way dwarf contamination.
Keyi Ding +8 more
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The Kinematics of Dwarf Spheroidal Galaxies
, 1997 I review observational data on the kinematic properties of dwarf spheroidal galaxies in the halo of the Milky Way and beyond. The present data confirm previous claims that these galaxies have unusually large central velocity dispersions. `Simple' sources of bias such as binary stars, internal atmospheric motions, measurement errors, and small sample ...
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Truncated star formation in dwarf spheroidal galaxies and photometric scaling relations [PDF]
, 2008 We investigate the global photometric scaling relations traced by early-type galaxies in different environments, ranging from dwarf spheroidals, over dwarf elliptical galaxies, up to giant, ellipticals (-8 mag greater than or similar to M-V greater than ...
Valcke, Sander +4 more
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