Redshifts, Kinematics and the Nature of Dwarf Elliptical Galaxies

Details Redshifts, Kinematics and the Nature of Dwarf Elliptical Galaxies Redshifts, Kinematics and the Nature of Dwarf Elliptical Galaxies

Feb 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999noao.prop..272g&link_type=abstract

NOAO Proposal ID #1999A-0272

Computer Science

Scientific paper

The origins of dwarf elliptical (dE) galaxies are still a mystery. It is well established that dE galaxies are poor in gas and stellar metals, indicating that gas was lost rather then exhausted by internal star formation. How and when this happened, and what processes led to the production of non-rotating, dynamically `hot' spheroidal galaxies of amazingly low stellar densities are unclear. An important clue to the nature of dEs comes from their location in populous regions, near giant galaxies and especially in rich clusters of galaxies, leading to the suspicion that dEs could be dwarf disk galaxies that have been modified by interactions. We request use of the 4-m Mayall Telescope for spectroscopy of dE and dS0 galaxies in a variety of environments to measure redshifts of dE/dS0 candidates to locate them in space and determine if they really are dwarfs. This is a key step in culling samples of nearby early-type dwarfs for further study in comparison with cluster dEs. We will also measure internal kinematics (rotation speeds) of a few brighter Virgo cluster early-type dwarfs and related objects. This component of our program aims to test models where external perturbations convert small rotating disk galaxies infalling into clusters into non-rotating dE systems.

Affiliated with

Also associated with

No associations

Rating

Redshifts, Kinematics and the Nature of Dwarf Elliptical Galaxies does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Redshifts, Kinematics and the Nature of Dwarf Elliptical Galaxies, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Redshifts, Kinematics and the Nature of Dwarf Elliptical Galaxies will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-948269