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IMPROVING THE FLUX CALIBRATION IN REVERBERATION MAPPING BY SPECTRAL FITTING: APPLICATION TO THE SEYFERT GALAXY MCG-6-30-15
Hu, C1; Wang, JM1,2; Ho, LC3,4; Bai JM(白金明)5; Li, YR1; Du, P1; Lu, KX1,6
发表期刊ASTROPHYSICAL JOURNAL
2016-12-01
卷号832期号:2
DOI10.3847/0004-637X/832/2/197
产权排序第5完成单位
收录类别SCI
关键词Galaxies: Active Galaxies: Individual (Mcg-6-30-15) Galaxies: Nuclei Galaxies: Seyfert Methods: Data Analysis
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.

资助项目Ministry of Science and Technology of China [2016YFA0400700] ; Strategic Priority Research Program-The Emergence of Cosmological Structures of the Chinese Academy of Sciences [XDB09000000] ; CAS Key Research Program[KJZDEW-M06] ; NSFC[NSFC-11173023] ; NSFC[NSFC-11133006] ; NSFC[NSFC-11233003] ; NSFC[NSFC-11473002] ; NSFC[NSFC-11503026] ; NSFC[NSFC-11573026] ; NSFC-CAS joint key grant [U1431228] ; China-Israel project [NSFC-11361140347]
项目资助者Ministry of Science and Technology of China [2016YFA0400700] ; Strategic Priority Research Program-The Emergence of Cosmological Structures of the Chinese Academy of Sciences [XDB09000000] ; CAS Key Research Program[KJZDEW-M06] ; NSFC[NSFC-11173023, NSFC-11133006, NSFC-11233003, NSFC-11473002, NSFC-11503026, NSFC-11573026] ; NSFC-CAS joint key grant [U1431228] ; China-Israel project [NSFC-11361140347]
语种英语
学科领域天文学 ; 星系与宇宙学
学科门类理学 ; 理学::天文学
文章类型Article
出版者IOP PUBLISHING LTD
出版地TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
ISSN0004-637X
URL查看原文
WOS记录号WOS:000390490100057
WOS研究方向Astronomy & Astrophysics
WOS类目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
引用统计
被引频次:9[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/9856
专题南方基地
通讯作者Hu, C
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
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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).
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