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| Main Author: | |
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| Format: | Artículo científico |
| Language: | en |
| Published: |
Sociedad Mexicana de Física A.C.
2008
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| Online Access: | https://www.redalyc.org/articulo.oa?id=57019061016 |
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Table of Contents:
- Using the MAST virtual observatory to study light profiles in elliptical galaxies F. Ávila-Castro J. Saucedo-Morales Física, Astronomía y Matemáticas fundamental plane Virtual observatory elliptical galaxies surface light profile In this paper we use high quality images from the M.A.S.T. Virtual Observatory to elliptical galaxies with redshift z < 0:02 to explore the differences between the classic de Vaucouleurs r1=4 and Sérsic r1=n surface light profiles. With the data obtained from the light profiles fits for a sample of 20 elliptical galaxies, we study the fundamental plane of elliptical galaxies. The Fundamental Plane involves several physical quantities of the galaxy such as luminosity, dispersion velocity and effective radius. While it is known that the Sérsic profile gives a better physical description of an individual galaxy, it was surprising that this data does not fit the Fundamental Plane for a sample of galaxies as well as the classical de Vaucouleurs fit does. 2008 artículo científico 0035-001X https://www.redalyc.org/articulo.oa?id=57019061016 en http://www.redalyc.org/revista.oa?id=570 Revista Mexicana de Física application/pdf Sociedad Mexicana de Física A.C. Revista Mexicana de Física (México) Num.2 Vol.54