CORRELATION BETWEEN ENVIRONMENT AND GAS METALLICITY FOR STAR-FORMING GALAXIES IN THE MAIN GALAXY SAMPLE OF SDSS DR7

被引：4
|
作者：
Deng, Xin-Fa [1 ]
机构：
[1] Nanchang Univ, Sch Sci, Nanchang 330031, Jiangxi, Peoples R China
来源：
ASTRONOMICAL JOURNAL | 2011年 / 141卷 / 05期
基金：
中国国家自然科学基金; 美国国家科学基金会; 美国国家航空航天局;
关键词：
galaxies: fundamental parameters; galaxies: statistics; DIGITAL SKY SURVEY; MORPHOLOGY-DENSITY RELATION; SPECTROSCOPIC TARGET SELECTION; BAND OPTICAL-PROPERTIES; VOLUME-LIMITED SAMPLE; REDSHIFT SURVEY; DATA RELEASE; DEPENDENCE; LUMINOSITY; CLUSTERS;
D O I：
10.1088/0004-6256/141/5/162
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Using two volume-limited samples of the Main Galaxy sample of the Sloan Digital Sky Survey Data Release 7 with luminosities of -20.5 <= M-r <= -18.5 and -22.5 <= M-r <= -20.5, respectively, I explore the correlation between environment and gas metallicity for star-forming galaxies. Overall, results indicate that galaxies in the lowest density regime preferentially have lower gas metallicity than galaxies in the densest regimes, and that the correlation between environment and gas metallicity is fundamental.
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页数：4
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