Abstract
An algorithm that finds isolated compact groups of galaxies in redshift catalogs is presented. It works by sorting the neighbors of each galaxy by projected distance, and forming groups according to chosen parameters of compactness and isolation. This work presents the results for an application of the algorithm to the 2dF Catalog. It has been found that a suitable choice of parameters can yield similar number of groups than those found by the Friends of Friends algorithm. It is important to stress, however, that there are also important differences, whose discussion could be useful to gain insight on the nature of galaxy groups, and to complement the results of other studies.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
1. Eke V.R. (these proceedings)
2. Huchra J.P., Davis M., Latham D., and Tonry J., ApJS 52, 89 (1983).
3. Huchra J.P., Geller M.J., ApJ 257, 423 (1982)
4. Zandivarez A., Merchán M. E., Padilla N. D., MNRAS 304, 247 (2003).
5. Eke V. R. et al., MNRAS, 348, 866 (2004).
6. Hickson P., ApJ, 255, 382 (1982).
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2007 Springer
About this paper
Cite this paper
Saucedo-Morales, J., Loera-González, P. (2007). Isolated Compact Groups of Galaxies in the 2dF Galaxy Redshift Survey. In: Saviane, I., Ivanov, V.D., Borissova, J. (eds) Groups of Galaxies in the Nearby Universe. ESO ASTROPHYSICS SYMPOSIA. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-71173-5_11
Download citation
DOI: https://doi.org/10.1007/978-3-540-71173-5_11
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-71172-8
Online ISBN: 978-3-540-71173-5
eBook Packages: Physics and AstronomyPhysics and Astronomy (R0)