The Properties of Isolated Main Galaxies in Sloan Digital Sky Survey Data Release 3 (SDSS DR3)

The Properties of Isolated Main Galaxies in Sloan Digital Sky Survey Data Release 3 (SDSS DR3)

We have constructed a Main galaxy subsample of 67777 galaxies with redshifts in the range 0.08 ≤ z ≤ 0.12 from the Sloan Digital Sky Survey Data Release 3. Using cluster analysis, two isolated Main galaxy samples were extracted from this subsample. The two isolated Main galaxy samples identified at...

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Veröffentlicht in:Publications of the Astronomical Society of Australia 2006-01, Vol.23 (2), p.76-81
Hauptverfasser: Deng, Xinfa, Ma, Xinsheng, Luo, Chenghong, Zhang, Qun, Liao, Qing-Hua, He, Ji-zhou
Format: Artikel
Sprache:eng
Schlagworte:
cluster analysis
cosmology
galaxy
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Zusammenfassung:We have constructed a Main galaxy subsample of 67777 galaxies with redshifts in the range 0.08 ≤ z ≤ 0.12 from the Sloan Digital Sky Survey Data Release 3. Using cluster analysis, two isolated Main galaxy samples were extracted from this subsample. The two isolated Main galaxy samples identified at different radii have the same properties. Additionally, we find fewer early-type galaxies in isolated Main galaxy samples than in a close double galaxy sample.
ISSN:1323-3580
1448-6083
DOI:10.1071/AS05019