DOUBLE-PEAKED NARROW EMISSION-LINE GALAXIES FROM THE SLOAN DIGITAL SKY SURVEY. I. SAMPLE AND BASIC PROPERTIES

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	DOUBLE-PEAKED NARROW EMISSION-LINE GALAXIES FROM THE SLOAN DIGITAL SKY SURVEY. I. SAMPLE AND BASIC PROPERTIES
	Ge, JQ 1; Hu, C 1; Wang, JM1,2 ; Bai JM(白金明)3 ; Zhang, S 1
刊名	ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES
	2012-08
卷号	201 期号:2
关键词	black hole physics galaxies: evolution
ISSN号	0067-0049
通讯作者	Ge, JQ (reprint author), Chinese Acad Sci, Inst High Energy Phys, Key Lab Particle Astrophys, 19B Yuquan Rd, Beijing 100049, Peoples R China.
产权排序	第三完成单位
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.
学科主题	Astronomy & Astrophysics
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Astronomy & Astrophysics
研究领域[WOS]	Astronomy & Astrophysics
关键词[WOS]	ACTIVE GALACTIC NUCLEI ; RESOLVED OPTICAL SPECTROSCOPY ; STELLAR VELOCITY DISPERSIONS ; SEYFERT-GALAXIES ; GASEOUS KINEMATICS ; REGION KINEMATICS ; REDSHIFT SURVEY ; STAR-FORMATION ; HOST GALAXIES ; MASS OUTFLOWS
收录类别	SCI
原文出处	http://iopscience.iop.org/article/10.1088/0067-0049/201/2/31/meta
语种	英语
WOS记录号	WOS:000309555900024
内容类型	期刊论文
源URL	[http://ir.ynao.ac.cn/handle/114a53/5419]
专题	云南天文台_丽江天文观测站（南方基地）
作者单位	1.Key Laboratory for Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, 19B Yuquan Road, Beijing 100049, China 2.National Astronomical Observatories, Chinese Academy of Sciences, 20 Datun Road, Beijing 100020, China 3.Yunnan Observatory, Chinese Academy of Sciences, Kunming 650011, China
推荐引用方式 GB/T 7714	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).
APA	Ge, JQ,Hu, C,Wang, JM,Bai JM,&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).
MLA	Ge, JQ,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).