Found 22 talks width keyword dwarf galaxies

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Tuesday November 25, 2008
The star formation history of different types of dwarf galaxies
Instituto de Astrofísica de Canarias, Spain

Abstract

We are going to present a new code to derive the SFH of a complex stellar population system, like a galaxy. This code has been used to obtain the SFH of six dwarf galaxies from the Local Constrains form Isolated Dwarf (LCID) project for which we are presenting the first results. The project has been designed to obtain the SFH of isolated dwarf galaxies free from strong interactions with massive host galaxies, like the MW or M31. The results obtained could help us to understand the spatial structure of dwarf galaxies and how galaxies form and evolve.
Archived in: - Keywords:star formation, M33, galaxy evolution, galactic formation, dwarf galaxies
Abstract


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Thursday July 24, 2008
Properties of the dwarf galaxy population in galaxy clusters
Instituto de Astrofísica de Canarias, Spain

Abstract

Dwarf galaxies, being the most numerous and fragile galaxy population, provide unique clues on both the formation of baryonic systems and the role played by the environment in galaxy evolution. In this short talk, I will present the main observational properties of the dwarf galaxy population in a sample of 88 nearby (z < 0.1) galaxy clusters drawn from the SDSS-DR4. By comparing the different properties (spatial and velocity distribution, colour, etc.) of red and blue dwarfs we attempt to constrain the scenarios for the evolution of galaxies in high-density environments.
Archived in: Galaxies - Keywords:galactic clusters, dwarf galaxies, SDSS, galaxy evolution
Abstract


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