Luminosity-Environment Relation in the Lowz Sample of the SDSS-III

Autor: Deng Xin-Fa, Qi Xiao-Ping, Wu Ping, Jiang Peng, Qian Xiao-Xia, Song Jun, Ding Ying-Ping
Jazyk: angličtina
Rok vydání: 2016
Předmět:
Zdroj: Open Astronomy, Vol 25, Iss 2, Pp 153-164 (2016)
Druh dokumentu: article
ISSN: 2543-6376
DOI: 10.1515/astro-2017-0118
Popis: In this work, we examine the environmental dependence of the u-, g-, r-, i- and z-band luminosities in the LOWZ sample of the Sloan Digital Sky Survey Data Release 10 (SDSS DR10). To decrease the radial selection effect, we divide the LOWZ sample into subsamples with a redshift bin size of Δz = 0.01 and analyze the environmental dependence of luminosities for these subsamples in each redshift bin. It is found that all five band luminosities of the LOWZ galaxy sample in the redshift region z=0.16–0.23 show substantial correlation with the local environment, especially in the redshift bins 0.19–0.20 and 0.20–0.21. The environmental dependence of all five band luminosities in the LOWZ galaxy sample becomes weak with increasing redshift, like the one in the apparent-magnitude limited Main galaxy sample.
Databáze: Directory of Open Access Journals