A sample of galaxy pairs identified from the LAMOST spectral survey and the Sloan Digital Sky Survey
A sample of galaxy pairs identified from the LAMOST spectral survey and the Sloan Digital Sky Survey
复制标题
从 LAMOST 光谱巡天和斯隆数字巡天识别出的星系对样本
DOI：
10.1088/1674-4527/16/3/043
复制
发表时间：
2016
影响因子：
1.8
通讯作者：
Yuan F
中科院分区：
文献类型：
--
作者：
Shen Shi-Yin;Argudo-Fern;ez Maria;Chen Li;Chen Xiao-Yan;Feng Shuai;Hou Jin-Liang;Hou Yong-Hui;Jiang Peng;Jing Yi-Peng;Kong Xu;Luo A-Li;Luo Zhi-Jian;Shao Zheng-Yi;Wang Ting-Gui;Wang Wen-Ting;Wang Yue-Fei;Wu Hong;Wu Xue-Bing;Yang Hai-Feng;Yang Ming;Yuan F
A small fraction (< 10%) of the SDSS main galaxy (MG) sample has not been targeted with spectroscopy due to the effect of fiber collisions. These galaxies have been compiled into the input catalog of the LAMOST ExtraGAlactic Surveys and named the complementary galaxy sample. In this paper, we introduce this project and status of the spectroscopies associated with the complementary galaxies in the first two years of the LAMOST spectral survey (till Sep. of 2014). Moreover, we present a sample of 1102 galaxy pairs identified from the LAMOST complementary galaxies and SDSS MGs, which are defined as two members that have a projected distance smaller than 100 h−170kpc and a recessional velocity difference smaller than 500 km s−1. Compared with galaxy pairs that are only selected from SDSS, the LAMOST-SDSS pairs have the advantages of not being biased toward large separations and therefore act as a useful supplement in statistical studies of galaxy interaction and galaxy merging.
