The Fundamental Plane of Spiral Galaxies: Search from Observational Data

Details The Fundamental Plane of Spiral Galaxies: Search from Observational Data The Fundamental Plane of Spiral Galaxies: Search from Observational Data

2001-07-31

arxiv.org/abs/astro-ph/0107586v2

Astronomy and Astrophysics

Astrophysics

7 pages, 5 figures. New version with all type error corrected, with minior changes in text. Appear on PASJ Vol 53(5), 2001 Oct

Scientific paper

The fundamental plane of spiral galaxies was searched from observational data, which can be approximately represented in observational parameters by $ L \propto V^2 R $, where $L$, $R$, and $V$ are the luminosity, the linear size of galactic disk, and the rotation velocity. This plane exists at all optical bands in our samples of more than 500 spiral galaxies in total. It is more fundamental than the relationship between any two of the parameters, and can reduce the residual of the Tully--Fisher $L$--$V$ relations by about 50\%. Noticed that the power index of $V$ is doubled from that of $R$, which implies that the total mass and the mass distribution of galaxies plays an important role in forming the fundamental plane. Involving the third parameter of galactic size has a strong physical implication on galaxy formation and the dark--mass distribution.

Affiliated with

Also associated with

No associations

Rating

The Fundamental Plane of Spiral Galaxies: Search from Observational Data does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with The Fundamental Plane of Spiral Galaxies: Search from Observational Data, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Fundamental Plane of Spiral Galaxies: Search from Observational Data will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-359573