IMPROVING THE FLUX CALIBRATION IN REVERBERATION MAPPING BY SPECTRAL FITTING: APPLICATION TO THE SEYFERT GALAXY MCG-6-30-15
Hu C(胡晨); Wang JM(王建民); Li YR(李彦荣); Du P(杜璞); Lu KX(卢开兴); Hu, C; Wang, JM; Ho, LC; Bai, JM; Li, YR; Du, P; Lu, KX
刊名ASTROPHYSICAL JOURNAL
2016
卷号832期号:2
关键词galaxies: active galaxies: individual (MCG-6-30-15) galaxies: nuclei galaxies: Seyfert methods: data analysis
DOI10.3847/0004-637X/832/2/197
通讯作者胡晨
文章类型Article
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.
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
语种英语
WOS记录号WOS:000390490100057
引用统计
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/260811
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
中国科学院高能物理研究所_粒子天体物理中心
作者单位中国科学院高能物理研究所
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Hu C,Wang JM,Li YR,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 胡晨.,王建民.,李彦荣.,杜璞.,卢开兴.,...&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 胡晨,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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