Mass-luminosity ratio in edge-on spirals

Details Mass-luminosity ratio in edge-on spirals Mass-luminosity ratio in edge-on spirals

Apr 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985a%26a...145..135m&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 145, no. 1, April 1985, p. 135-138.

Astronomy and Astrophysics

Astrophysics

2

Astronomical Photometry, Halos, Mass To Light Ratios, Spiral Galaxies, Hubble Constant, Populations, Ubv Spectra

Scientific paper

The author presents a study of the five galaxies with the lowest mass to light ratios in the sample of galaxies of Rubin et al. with optically measured rotation curves. UBV multiaperture photometry was performed on these Sb-Sc galaxies, in order to find their local M/L behavior. M/LB was found to be less than unity in the center of only one galaxy, NGC 4605. Another galaxy, NGC 1421, shows a decrease of local M/L between 0.2 to 0.5 of de Vaucouleurs' radius. This is, probably, not the result of non-constant internal absorption in edge-on spirals. It is suggested that the low mass-to-light ratios might be a result of wrong distances to the two galaxies mentioned above.

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