Hostname: page-component-cd9895bd7-gbm5v Total loading time: 0 Render date: 2024-12-25T06:03:22.389Z Has data issue: false hasContentIssue false
  • English
  • Français

Internal kinematics and stellar populations of dE galaxies: clues to their formation/evolution

Published online by Cambridge University Press:  08 November 2005

Philippe Prugniel ,
Igor Chilingarian ,
Olga Sil'chenko  and
Victor Afanasiev
Philippe Prugniel
Affiliation:
CRAL Observatoire de Lyon, France GEPI Observatoire de Paris-Meudon, France
Igor Chilingarian
Affiliation:
CRAL Observatoire de Lyon, France Sternberg Astronomical Institute of MSU, Russia
Olga Sil'chenko
Affiliation:
Sternberg Astronomical Institute of MSU, Russia
Victor Afanasiev
Affiliation:
Special Astrophysical Observatory of RAS, Russia
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

What is the origin of the numerous population of diffuse elliptical galaxies (dE)? These galaxies formed their stars several billion years ago and lost their gas. Though the stellar winds resulting from star formation and the interactions with the environment undoubtedly play a role, their respective role and details of this evolution are still debated.

In this presentation we will review the first 3D spectroscopic observations of a handful of dE galaxies. These data reveal complex kinematical structures, with embedded discs and counter rotating cores, and they open extremely promising perspectives for studying the history of the stellar population throughout these various features.

The presence of disks, which was already known from detailed image analysis, their complex kinematics, and the new constraints on the stellar population enforce the hypothesis of the evolutionary connection between dEs and disk galaxies.

Keywords

methods: data analysisgalaxies: dwarfkinematics and dynamicsstellar content
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 1 , Colloquium C198: Near-Field Cosmology with Dwarf Elliptical Galaxies , March 2005 , pp. 73 - 76
Copyright
© 2005 International Astronomical Union