scholarly journals Galaxy Groups in the Third Data Release of the Sloan Digital Sky Survey

2005 ◽  
Vol 630 (2) ◽  
pp. 759-763 ◽  
Author(s):  
Manuel E. Merchan ◽  
Ariel Zandivarez
Keyword(s):  
Sloan Digital Sky Survey ◽  
Galaxy Groups ◽  
The Third ◽  
Sky Survey ◽  
Data Release

scholarly journals The Ursa Major Cluster Redefined as a ‘Supergroup’

2016 ◽  
Vol 33 ◽  
Author(s):  
K. Wolfinger ◽  
V. A. Kilborn ◽  
E. V. Ryan-Weber ◽  
B. S. Koribalski
Keyword(s):  
Real Data ◽  
Virgo Cluster ◽  
Sloan Digital Sky Survey ◽  
Galaxy Groups ◽  
The Third ◽  
Evolutionary State ◽  
Sky Survey ◽  
Major Cluster ◽  
The Galaxy ◽  
Major Region

AbstractWe identify gravitationally bound structures in the Ursa Major region using positions, velocities and photometry from the Sloan Digital Sky Survey (SDSS DR7) and the Third Reference Catalogue of Bright Galaxies (RC3). A friends-of-friends algorithm is extensively tested on mock galaxy lightcones and then implemented on the real data to determine galaxy groups whose members are likely to be physically and dynamically associated with one another. We find several galaxy groups within the region that are likely bound to one another and in the process of merging. We classify 6 galaxy groups as the Ursa Major ‘supergroup’, which are likely to merge and form a poor cluster with a mass of ~ 8 × 1013 M⊙. Furthermore, the Ursa Major supergroup as a whole is likely bound to the Virgo cluster, which will eventually form an even larger system in the context of hierarchical structure formation. We investigate the evolutionary state of the galaxy groups in the Ursa Major region and conclude that these groups are in an early evolutionary state and the properties of their member galaxies are similar to those in the field.

scholarly journals THE SLOAN DIGITAL SKY SURVEY QUASAR LENS SEARCH. III. CONSTRAINTS ON DARK ENERGY FROM THE THIRD DATA RELEASE QUASAR LENS CATALOG

2008 ◽  
Vol 135 (2) ◽  
pp. 512-519 ◽  
Author(s):  
Masamune Oguri ◽  
Naohisa Inada ◽  
Michael A. Strauss ◽  
Christopher S. Kochanek ◽  
Gordon T. Richards ◽  
...  
Keyword(s):  
Dark Energy ◽  
Sloan Digital Sky Survey ◽  
The Third ◽  
Sky Survey ◽  
Data Release

scholarly journals THE SLOAN DIGITAL SKY SURVEY QUASAR LENS SEARCH. II. STATISTICAL LENS SAMPLE FROM THE THIRD DATA RELEASE

2008 ◽  
Vol 135 (2) ◽  
pp. 496-511 ◽  
Author(s):  
Naohisa Inada ◽  
Masamune Oguri ◽  
Robert H. Becker ◽  
Min-Su Shin ◽  
Gordon T. Richards ◽  
...  
Keyword(s):  
Sloan Digital Sky Survey ◽  
The Third ◽  
Sky Survey ◽  
Data Release

scholarly journals The Third Data Release of the Sloan Digital Sky Survey

2005 ◽  
Vol 129 (3) ◽  
pp. 1755-1759 ◽  
Author(s):  
Kevork Abazajian ◽  
Jennifer K. Adelman-McCarthy ◽  
Marcel A. Agüeros ◽  
Sahar S. Allam ◽  
Kurt S. J. Anderson ◽  
...  
Keyword(s):  
Sloan Digital Sky Survey ◽  
The Third ◽  
Sky Survey ◽  
Data Release

scholarly journals Transformations from WISE to 2MASS, SDSS and BVI Photometric Systems: II. Transformation Equations for Red-Clump Stars

2012 ◽  
Vol 29 (2) ◽  
pp. 121-131 ◽  
Author(s):  
S. Bilir ◽  
S. Karaali ◽  
N. D. Dağtekin ◽  
Ö. Önal ◽  
S. Ak ◽  
...  
Keyword(s):  
Field Survey ◽  
Sloan Digital Sky Survey ◽  
Wide Field ◽  
Experiment Data ◽  
The Third ◽  
Final Sample ◽  
Sky Survey ◽  
Data Release ◽  
Red Clump ◽  
Absolute Magnitudes

AbstractWe present colour transformations for the conversion of Wide-Field Survey Explorer W1, W2, and W3 magnitudes to the Johnson–Cousins BVIc, Sloan Digital Sky Survey gri, and Two Micron All Sky Survey JHKs photometric systems, for red clump (RC) stars. RC stars were selected from the Third Radial Velocity Experiment Data Release. The apparent magnitudes were collected by matching the coordinates of this sample with different photometric catalogues. The final sample (355 RC stars) was used to obtain metallicitydependent and free-of-metallicity transformations. These transformations combined with known absolute magnitudes at shorter wavelengths can be used in space density determinations for the Galactic (thin and thick) discs at distances larger than the ones evaluated with JHKs photometry alone, hence providing a powerful tool in the analysis of Galactic structure.

scholarly journals A Spectroscopic Study of the Ancient Milky Way: F‐ and G‐Type Stars in the Third Data Release of the Sloan Digital Sky Survey

2006 ◽  
Vol 636 (2) ◽  
pp. 804-820 ◽  
Author(s):  
Carlos Allende Prieto ◽  
Timothy C. Beers ◽  
Ronald Wilhelm ◽  
Heidi Jo Newberg ◽  
Constance M. Rockosi ◽  
...  
Keyword(s):  
Spectroscopic Study ◽  
Milky Way ◽  
Sloan Digital Sky Survey ◽  
The Third ◽  
Sky Survey ◽  
Data Release

scholarly journals A New Catalog of Isolated Galaxies

2009 ◽  
Vol 5 (S267) ◽  
pp. 464-464
Author(s):  
J. A. Vázquez-Mata ◽  
H. M. Hernández-Toledo ◽  
Changbom Park ◽  
Yun-Young Choi
Keyword(s):  
Galaxy Formation ◽  
Environmental Effects ◽  
Comparative Studies ◽  
Sloan Digital Sky Survey ◽  
Selection Algorithm ◽  
Isolated Galaxies ◽  
Galaxy Formation And Evolution ◽  
Sky Survey ◽  
Data Release ◽  
Formation And Evolution

We present a new catalog of isolated galaxies (coined as UNAM–KIAS) obtained through an automated systematic search. The 1520 isolated galaxies were found in ~ 1.4 steradians of the sky in the Sloan Digital Sky Survey Data Release 5 (SDSS DR5) photometry. The selection algorithm was implemented from a variation of the criteria developed by Karachentseva (1973), with full redshift information. This new catalog is aimed to carry out comparative studies of environmental effects and constraining the currently competing scenarios of galaxy formation and evolution.

scholarly journals Cross-correlation of the 2XMMi catalogue with Data Release 7 of the Sloan Digital Sky Survey

2011 ◽  
Vol 527 ◽  
pp. A126 ◽  
Author(s):  
F.-X. Pineau ◽  
C. Motch ◽  
F. Carrera ◽  
R. Della Ceca ◽  
S. Derrière ◽  
...  
Keyword(s):  
Cross Correlation ◽  
Sloan Digital Sky Survey ◽  
Sky Survey ◽  
Data Release
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