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The Sagittarius dwarf mass-to-light ratio
Published online by Cambridge University Press: 08 November 2005
Abstract
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We report on the use of high-resolution spectra to obtain a detailed description of the Sagittarius dwarf spheroidal internal dynamics, its Mass and Mass to Light ratio (M/L). Our direct measure of the central velocity dispersion of SGR give $\sigma_{SGR}=8.1\pm0.4$ km/s which translates in a total mass estimate of $M_{SGR} =1.6\times10^8 M_{\odot}$ and corresponding $(M/L)_{SGR}=9.1 (M/L)_{\odot}$. We also report on a possible detection of rotation in the core of SGR.
Keywords
- Type
- Contributed Papers
- Information
- Proceedings of the International Astronomical Union , Volume 1 , Colloquium C198: Near-Field Cosmology with Dwarf Elliptical Galaxies , March 2005 , pp. 101 - 104
- Copyright
- © 2005 International Astronomical Union
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