A study of active galactic nuclei in low surface brightness galaxies with Sloan Digital Sky Survey spectroscopy

	A study of active galactic nuclei in low surface brightness galaxies with Sloan Digital Sky Survey spectroscopy
	Mei, L 1,2; Yuan WM(袁为民)3 ; Dong, XB4
刊名	RESEARCH IN ASTRONOMY AND ASTROPHYSICS
	2009-03
卷号	9 期号:3 页码:269-292
关键词	galaxies: active galaxies: fundamental parameters galaxies: nuclei
ISSN号	1674-4527
通讯作者	Mei, L (reprint author), Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China.
产权排序	第三完成单位
英文摘要	Active galactic nuclei (AGNs) in low surface brightness galaxies (LSBGs) have received little attention in previous studies. We present a detailed spectral analysis of 194 LSBGs from the Impey et al. (1996) APM LSBG sample which has been observed spectroscopically by the Sloan Digital Sky Survey Data Release 5 (SDSS DR5). Our elaborate spectral analysis enables us to carry out, for the first time, reliable spectral classification of nuclear processes in LSBGs based on the standard emission line diagnostic diagrams in a rigorous way. Star-forming galaxies are common, as found in about 52% of LSBGs. We find that, contrary to some previous claims, the fraction of galaxies that contain AGNs is significantly lower than that found in nearby normal galaxies of high surface brightness. This is qualitatively in line with the finding of Impey et al. This result holds true even within each morphological type from Sa to Sc. LSBGs that have larger central stellar velocity dispersions or larger physical sizes tend to have a higher chance of harboring an AGN. For three AGNs with broad emission lines, the black hole masses estimated from the emission lines are broadly consistent with the well known M-sigma(*). relation established for normal galaxies and AGNs.
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]	STAR-FORMATION THRESHOLDS ; DWARF SEYFERT NUCLEI ; EARLY DATA RELEASE ; BLACK-HOLE MASS ; HOST GALAXIES ; LOCAL UNIVERSE ; VELOCITY DISPERSION ; DISK GALAXIES ; NARROW-LINE ; LOW-DENSITY
收录类别	SCI
原文出处	http://iopscience.iop.org/1674-4527/9/3/002/
语种	英语
WOS记录号	WOS:000264845200002
内容类型	期刊论文
源URL	[http://ir.ynao.ac.cn/handle/114a53/4986]
专题	云南天文台_高能天体物理研究组
作者单位	1.National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China 2.Graduate School of the Chinese Academy of Sciences, Beijing 100049, China 3.Yunnan Observatory, National Astronomical Observatories, Chinese Academy of Sciences, Kunming 650011, China 4.Center for Astrophysics, University of Science and Technology of China, Hefei 230026, China
推荐引用方式 GB/T 7714	Mei, L,Yuan WM,Dong, XB. A study of active galactic nuclei in low surface brightness galaxies with Sloan Digital Sky Survey spectroscopy[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2009,9(3):269-292.
APA	Mei, L,Yuan WM,&Dong, XB.(2009).A study of active galactic nuclei in low surface brightness galaxies with Sloan Digital Sky Survey spectroscopy.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,9(3),269-292.
MLA	Mei, L,et al."A study of active galactic nuclei in low surface brightness galaxies with Sloan Digital Sky Survey spectroscopy".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 9.3(2009):269-292.