Document Type
Article
Publication Date
1-1-2003
Publication Title
Science
Volume
301
Issue Number
5640
First Page
1696
Last Page
1698
DOI
10.1126/science.1087441
Disciplines
Astrophysics and Astronomy
Abstract
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.
Recommended Citation
Aaron J. Romanowsky, N. G. Douglas, M. Arnaboldi, K. Kuijken, M. R. Merrifield, N. R. Napolitano, and M. Capaccioli. "A dearth of dark matter in ordinary elliptical galaxies" Science (2003): 1696-1698. https://doi.org/10.1126/science.1087441
Comments
This is the author’s version of the work. It is posted here by permission of the AAAS for personal use, not for redistribution. The definitive version was published in Science on 301, 2003, DOI: 10.1126/science.1087441.