Open AccessBalance of Dark and Luminous Mass in Rotating Galaxies
Author(s) -
Stacy McGaugh
Publication year - 2005
Publication title -
physical review letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.688
H-Index - 673
eISSN - 1079-7114
pISSN - 0031-9007
DOI - 10.1103/physrevlett.95.171302
Subject(s) - physics , astrophysics , balance (ability) , galaxy , astronomy , medicine , physical medicine and rehabilitation
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. Thisposes a fine-tuning problem for \LCDM galaxy formation models, and may point tonew physics for dark matter particles or even a modification of gravity.Comment: 4 pages RevTeX. Phys. Rev. Letters, in pres
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