DOUBLE-PEAKED NARROW EMISSION-LINE GALAXIES FROM THE SLOAN DIGITAL SKY SURVEY. I. SAMPLE AND BASIC PROPERTIES
Ge JQ(葛俊强); Hu C(胡晨); Wang JM(王建民); 张澍;Ge, JQ; Hu, C; Wang, JM; Bai, JM; Zhang, S
刊名ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES
2012
卷号201期号:2页码:31
关键词black hole physics galaxies: evolution
学科分类Astronomy & Astrophysics
DOI10.1088/0067-0049/201/2/31
英文摘要Recently, much attention has been paid to double-peaked narrow emission-line (NEL) galaxies, some of which are suggested to be related to merging galaxies. We make a systematic search to build the largest sample of these sources from Data Release 7 of the Sloan Digital Sky Survey (SDSS). With reasonable criteria for fluxes, FWHMs of the emission lines, and separations of the peaks, we select 3030 double-peaked NEL galaxies. In light of the existence of broad Balmer lines and the locations of the two components of double-peaked NELs distinguished by the Kauffmann et al. criteria in the Baldwin-Phillips-Terlevich diagram, we find that there are 81 Type I active galactic nuclei (AGNs), 837 double Type II AGNs (2-Type II), 708 galaxies with double star-forming components (2-SF), 400 with mixed star-forming and Type II AGN components (Type II + SF), and 1004 unknown-type objects. As a by-product, a sample of galaxies (12,582) with asymmetric or top-flat profiles of emission lines is established. After visually inspecting the SDSS images of the two samples, we find 54 galaxies with dual cores. The present samples can be used to study the dynamics of merging galaxies, the triggering mechanism of black hole activity, the hierarchical growth of galaxies, and the dynamics of narrow line regions driven by outflows and a rotating disk.
收录类别SCI
WOS记录号WOS:000309555900024
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被引频次:30[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/224391
专题中国科学院高能物理研究所_粒子天体物理中心_期刊论文
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Ge JQ,Hu C,Wang JM,et al. DOUBLE-PEAKED NARROW EMISSION-LINE GALAXIES FROM THE SLOAN DIGITAL SKY SURVEY. I. SAMPLE AND BASIC PROPERTIES[J]. ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES,2012,201(2):31.
APA 葛俊强.,胡晨.,王建民.,张澍;Ge, JQ.,Hu, C.,...&Zhang, S.(2012).DOUBLE-PEAKED NARROW EMISSION-LINE GALAXIES FROM THE SLOAN DIGITAL SKY SURVEY. I. SAMPLE AND BASIC PROPERTIES.ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES,201(2),31.
MLA 葛俊强,et al."DOUBLE-PEAKED NARROW EMISSION-LINE GALAXIES FROM THE SLOAN DIGITAL SKY SURVEY. I. SAMPLE AND BASIC PROPERTIES".ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES 201.2(2012):31.
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