Skip navigation
Skip navigation

A Dearth of Dark Matter in Ordinary Elliptical Galaxies

Romanowsky, A J; Douglas, Nigel G; Arnaboldi, Magda; Kuijken, Konrad; Merrifield, M R; Napolitano, Nicola R; Capaccioli, Massimo; Freeman, Kenneth

Description

The kinematics of the outer parts of three intermediate-luminosity elliptical galaxies were studied with the Planetary Nebula Spectrograph. The galaxies' velocity-dispersion profiles were found to decline with the radius, and dynamical modeling of the data indicates the presence of little if any dark matter in these galaxies' halos. This unexpected result conflicts with findings in other galaxy types and poses a challenge to current galaxy formation theories.

CollectionsANU Research Publications
Date published: 2003
Type: Journal article
URI: http://hdl.handle.net/1885/87079
Source: Science
DOI: 10.1126/science.1087441

Download

File Description SizeFormat Image
01_Romanowsky_A_Dearth_of_Dark_Matter_in_2003.pdf292.55 kBAdobe PDF    Request a copy


Items in Open Research are protected by copyright, with all rights reserved, unless otherwise indicated.

Updated:  20 July 2017/ Responsible Officer:  University Librarian/ Page Contact:  Library Systems & Web Coordinator