Locations of Satellite Galaxies in the Two-Degree Field Galaxy Redshift Survey
Joint Authors
Ágústsson, Ingólfur
Brainerd, Tereasa G.
Source
ISRN Astronomy and Astrophysics
Issue
Vol. 2011, Issue 2011 (31 Dec. 2011), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2011-10-24
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
We compute the locations of satellite galaxies in the Two-Degree Field Galaxy Redshift Survey using two sets of selection criteria and three sources of photometric data.
Using the SuperCOSMOS rF photometry, we find that the satellites are located preferentially near the major axes of their hosts, and the anisotropy is detected at a highly significant level (confidence levels of 99.6% to 99.9%).
The locations of satellites that have high velocities relative to their hosts are statistically indistinguishable from the locations of satellites that have low velocities relative to their hosts.
Additionally, satellites with passive star formation are distributed anisotropically about their hosts (99% confidence level), while the locations of star-forming satellites are consistent with an isotropic distribution.
These two distributions are, however, statistically indistinguishable.
Therefore it is not correct to interpret this as evidence that the locations of the star-forming satellites are intrinsically different from those of the passive satellites.
American Psychological Association (APA)
Ágústsson, Ingólfur& Brainerd, Tereasa G.. 2011. Locations of Satellite Galaxies in the Two-Degree Field Galaxy Redshift Survey. ISRN Astronomy and Astrophysics،Vol. 2011, no. 2011, pp.1-11.
https://search.emarefa.net/detail/BIM-511481
Modern Language Association (MLA)
Ágústsson, Ingólfur& Brainerd, Tereasa G.. Locations of Satellite Galaxies in the Two-Degree Field Galaxy Redshift Survey. ISRN Astronomy and Astrophysics No. 2011 (2011), pp.1-11.
https://search.emarefa.net/detail/BIM-511481
American Medical Association (AMA)
Ágústsson, Ingólfur& Brainerd, Tereasa G.. Locations of Satellite Galaxies in the Two-Degree Field Galaxy Redshift Survey. ISRN Astronomy and Astrophysics. 2011. Vol. 2011, no. 2011, pp.1-11.
https://search.emarefa.net/detail/BIM-511481
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-511481