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SDSS spectroscopy for blazars in the Fermi LAT bright AGN sample
Chen ZhaoYu1; Gu MinFeng1; Fan ZhongHui3; Cao XinWu1
2009
Source PublicationRESEARCH IN ASTRONOMY AND ASTROPHYSICS
ISSN1674-4527
Volume9Issue:11Pages:1192
AbstractWe have collected all available spectra and photometric data from the SDSS catalog for bright AGNs complied from the first three months of the Fermi large area telescope all-sky survey. Based on the 106 high-confidence and 11 low-confidence associated bright AGN list, the photometry data are collected from SDSS DR7 for 28 sources (12 BL Lacs and 16 FSRQs), two of which are low-confidence associated bright AGNs. Among these 28 SDSS photometric sources, SDSS spectra are available for 20 sources (6 BL Lacs and 14 FSRQs). The black hole masses M(BH) and the broad line region (BLR) luminosity were obtained for 14 FSRQs by measuring the line-widths and strengths of broad emission lines from the SDSS spectra. The broad emission line measurements of five FSRQs are presented for the first time in this work. The optical continuum emission of these 14 FSRQs is found to be likely dominated by the non-thermal jet emission by comparing the relationship between the broad Mg II line and continuum luminosity to that of radio-quiet AGNs. The black hole mass of the 14 FSRQs ranges from 10(8.2) M(circle dot) to 10(9.9) M(circle dot), with most of the sources larger than 10(9) M(circle dot). The Eddington ratio L(bol)/L(Edd) ranges from 10(-1.5) to similar to 1. This implies that an optically thin, geometrically thick accretion disk may exist in these FSRQs.
KeywordACTIVE GALACTIC NUCLEI BL-LACERTAE OBJECTS BLACK-HOLE MASS EMISSION-LINE PROPERTIES DIGITAL SKY SURVEY RAY LOUD BLAZARS OBSERVATIONAL APPEARANCE STAR-FORMATION RADIO QUASARS SOURCE LIST galaxies: active galaxies: nuclei gamma rays: observations quasars: emission lines BL Lacertae objects: general
Language英语
Funding Project[National Natural Science Foundation of China] ; [973 Program] ; [CAS] ; [Yunnan Provincial Science Foundation of China] ; [Alfred P. Sloan Foundation]
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/62882
Collection中国科学院国家天文台
Affiliation1.中国科学院国家天文台
2.中国科学院
3.云南大学
First Author AffilicationNational Astronomical Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Chen ZhaoYu,Gu MinFeng,Fan ZhongHui,et al. SDSS spectroscopy for blazars in the Fermi LAT bright AGN sample[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2009,9(11):1192.
APA Chen ZhaoYu,Gu MinFeng,Fan ZhongHui,&Cao XinWu.(2009).SDSS spectroscopy for blazars in the Fermi LAT bright AGN sample.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,9(11),1192.
MLA Chen ZhaoYu,et al."SDSS spectroscopy for blazars in the Fermi LAT bright AGN sample".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 9.11(2009):1192.
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