A new method for determining mass-to-light ratios of nearly face-on spiral galaxies

Details A new method for determining mass-to-light ratios of nearly face-on spiral galaxies A new method for determining mass-to-light ratios of nearly face-on spiral galaxies

Feb 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006a%26a...446l...5h&link_type=abstract

Astronomy and Astrophysics, Volume 446, Issue 2, February I 2006, pp.L5-L8

Astronomy and Astrophysics

Astrophysics

4

Scientific paper

Context: . Aims: .This letter gives a new method for determining mass-to-light ratios of nearly face-on spiral galaxies. Methods: .The method is based on the effective thickness of the galactic disk, the distribution of the vertical velocity dispersion, and the surface brightness of a spiral galaxy. Results: .As examples, the results of the determination of NGC 1566 and NGC 5247 in B-band are presented, and their mass-to-light ratios are 4.86 ˜ 8.99 {M_&sun; L_&sun; -1} and 5.02˜ 6.90 {M_&sun; L_&sun; -1} respective. Conclusions: .

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