| Issue |
A&A
Volume 446, Number 2, February I 2006
|
|
|---|---|---|
| Page(s) | L5 - L8 | |
| Section | Letters | |
| DOI | https://doi.org/10.1051/0004-6361:200500225 | |
| Published online | 13 January 2006 | |
Letter to the Editor
A new method for determining mass-to-light ratios of nearly face-on spiral galaxies
1
Department of Astronomy, Nanjing University, Nanjing 210093, PR China e-mail: taohu@nju.edu.cn
2
Joint Astrophysics Center of Chinese Academy of Science-Peking University, Beijing 100871, PR China
3
The Open Laboratory of Cosmic Ray and High Energy Astrophysics, Chinese Academy of Science
Received:
12
August
2005
Accepted:
8
December
2005
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 
and 
respective.
Conclusions.
© ESO, 2006
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.