A Sample of E+A Galaxy Candidates in LAMOST Data Released 2
Abstract
A sample of 70 E+A galaxies are selected from 37, 206 galaxies in the second data release (DR2) of Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) according to the criteria for E+A galaxies defined by Goto, and each of these objects is further visually identified. In this sample, most objects are low redshift E+A galaxies with z < 0.25, and locate in the high latitude sky area with magnitude among 14 to 18 mag in g, r and i bands. A stellar population analysis for the whole sample indicates that the E+A galaxies are characterized by both young and old stellar populations (SPs), and the metal-rich SPs have relatively higher contributions than the metal-poor ones. Additionally, a morphological classification for these objects is performed based on the images taken from the Sloan Digital Sky Survey (SDSS).
Cite
@article{arxiv.1506.00796,
title = {A Sample of E+A Galaxy Candidates in LAMOST Data Released 2},
author = {Haifeng Yang and Ali Luo and Xiaoyan Chen and Wen Hou and Jiannan Zhang and Wei Du and Jifu Zhang and Jianghui Cai and Yanxin Guo and Shuo Zhang and Yongheng Zhao and Hong Wu and Tinggui Wang and Shiyin Shen and Ming Yang and Yong Zhang and Yonghui Hou},
journal= {arXiv preprint arXiv:1506.00796},
year = {2015}
}
Comments
12pages, 6figures