Dark and visible matter in spiral galaxies

Details Dark and visible matter in spiral galaxies Dark and visible matter in spiral galaxies

Sep 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988mnras.234..131p&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 234, Sept. 1, 1988, p. 131-154.

Astronomy and Astrophysics

Astronomy

117

Dark Matter, Mass To Light Ratios, Rotating Matter, Spiral Galaxies, Astronomical Photometry, Brightness Distribution, Star Formation, Stellar Evolution

Scientific paper

After discussing the photometric properties and rotation curves of galaxies and arguing for the existence of dark matter in virtually spherical haloes from the profiles of the central-velocity fields the authors investigate the systematics of dark matter from the systematics of rotation curves. They then discuss the derived disc properties and provide a theoretical justification for the Tully-Fisher correlation. In particular, the authors consider how systematic variations of the dark-mass fraction along the luminosity sequence affect the Tully-Fisher correlation. They also compare the derived disc mass-to-light ratios with those predicted by stellar-evolution models. The results are discussed in the context of different dark versus visible mass decomposition methods.

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