IMPROVING THE FLUX CALIBRATION IN REVERBERATION MAPPING BY SPECTRAL FITTING: APPLICATION TO THE SEYFERT GALAXY MCG-6-30-15

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	IMPROVING THE FLUX CALIBRATION IN REVERBERATION MAPPING BY SPECTRAL FITTING: APPLICATION TO THE SEYFERT GALAXY MCG-6-30-15
	Hu, C 1; Wang, JM1,2 ; Ho, LC 3,4; Bai JM(白金明)5 ; Li, YR 1; Du, P 1; Lu, KX1,6
刊名	ASTROPHYSICAL JOURNAL
	2016-12-01
卷号	832 期号:2
关键词	galaxies: active galaxies: individual (MCG-6-30-15) galaxies: nuclei galaxies: Seyfert methods: data analysis
ISSN号	0004-637X
通讯作者	Hu, C (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	第五完成单位
英文摘要	We propose a method for\ the flux calibration of reverberation mapping spectra, based on accurate measurement of [O III] lambda 5007 emission by spectral fitting. Our method can achieve better accuracy than the traditional method of Groningen & Wanders, allowing reverberation mapping measurements for objects with variability amplitudes as low as similar to 5%. As a demonstration, we reanalyze the data of the Seyfert 1 galaxy MCG-6-30-15, taken from the 2008 campaign of the Lick active galactic nucleus monitoring project, which previously failed to obtain a time lag for this weakly variable object, owing to a relatively large flux calibration uncertainty. We detect a statistically significant rest-frame time lag of 6.38(-2.69)(+3.07) days between the H beta and V-band light curves. Combining this lag with FWHM(H beta) = 1933 +/- 81 km s(-1) and a virial coefficient of f = 0.7, we derive a virial black hole mass of 3.26(-1.40)(+1.59) x 10(6) M circle dot, which agrees well with previous estimates by other methods.
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 ; SUPERMASSIVE BLACK-HOLES ; BROAD-LINE REGION ; FE II REVERBERATION ; X-RAY ; ULTRAVIOLET EXTINCTION ; OPTICAL CONTINUUM ; SPACE-TELESCOPE ; HIGH ACCRETION ; PSEUDO-BULGES
收录类别	SCI
原文出处	http://iopscience.iop.org/article/10.3847/0004-637X/832/2/197/meta
语种	英语
WOS记录号	WOS:000390490100057
内容类型	期刊论文
源URL	[http://ir.ynao.ac.cn/handle/114a53/9856]
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 of China, Chinese Academy of Sciences, 20A Datun Road, Beijing 100020, China 3.Kavli Institute for Astronomy and Astrophysics, Peking University, Beijing 100871, China 4.Department of Astronomy, School of Physics, Peking University, Beijing 100871, China 5.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650011, China 6.Department of Astronomy, Beijing Normal University, Beijing 100875, China
推荐引用方式 GB/T 7714	Hu, C,Wang, JM,Ho, LC,et al. IMPROVING THE FLUX CALIBRATION IN REVERBERATION MAPPING BY SPECTRAL FITTING: APPLICATION TO THE SEYFERT GALAXY MCG-6-30-15[J]. ASTROPHYSICAL JOURNAL,2016,832(2).
APA	Hu, C.,Wang, JM.,Ho, LC.,Bai JM.,Li, YR.,...&Lu, KX.(2016).IMPROVING THE FLUX CALIBRATION IN REVERBERATION MAPPING BY SPECTRAL FITTING: APPLICATION TO THE SEYFERT GALAXY MCG-6-30-15.ASTROPHYSICAL JOURNAL,832(2).
MLA	Hu, C,et al."IMPROVING THE FLUX CALIBRATION IN REVERBERATION MAPPING BY SPECTRAL FITTING: APPLICATION TO THE SEYFERT GALAXY MCG-6-30-15".ASTROPHYSICAL JOURNAL 832.2(2016).