Balance of Dark and Luminous Mass in Rotating Galaxies

Authors

Stacy S. McGaugh, Case Western Reserve UniversityFollow

Document Type

Article

Publication Date

10-20-2005

Abstract

A fine balance between dark and baryonic mass is observed in spiral galaxies. As the contribution of the baryons to the total rotation velocity increases, the contribution of the dark matter decreases by a compensating amount. This poses a fine-tuning problem for ÎCDM galaxy formation models, and may point to new physics for dark matter particles or even a modification of gravity.

Publication Title

Physical Review Letters

Grant

505956

Rights

© American Physical Society. Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.

Recommended Citation

McGaugh, Stacy S. Balance of Dark and Luminous Mass in Rotating Galaxies. Phys. Rev. Lett., volume95, issue17, 2005, doi: 10.1103/PhysRevLett.95.171302