费米耀变体伽马射线光度和中心黑洞质量的研究
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摘要
通过分析所收集耀变体样本的红移、多普勒因子、内秉伽马光度、黑洞质量、内秉吸积率的分布得到:与蝎虎天体相比,平谱射电类星体有更大的平均红移、多普勒因子、内秉伽马射线光度、黑洞质量、内秉吸积率.利用线性回归和Pearson偏相关分析的方法,得到内秉伽马射线光度和黑洞质量以及内秉吸积率之间都有很好的相关性,这表明伽马射线的产生和黑洞质量及吸积都有关系,同时也表明喷流的产生和黑洞自旋及吸积有关系.
Through analyzing the distributions of redshift,Doppler factor,intrinsic gamma-ray luminosity,black hole mass and accretion rate of the collected Fermi Blazar samples,it was found that compared with BL Lacertae objects(BL Lac),flat spectrum radio quasars(FSRQ) have much larger mean redshift, Doppler factor,intrinsic gamma-ray luminosity,black hole mass and accretion rate.Using linear regression analysis and Pearson partial analysis,a strong correlations between intrinsic gamma-ray luminosity and black hole mass,between intrinsic gamma-ray luminosity and intrinsic accretion rate were found too,which suggested that the produce of gamma-ray had close relationship with black hole mass and accretion.At the same time,these results supported that jets were powered by energy extraction from both accretion and black hole spin.
Through analyzing the distributions of redshift,Doppler factor,intrinsic gamma-ray luminosity,black hole mass and accretion rate of the collected Fermi Blazar samples,it was found that compared with BL Lacertae objects(BL Lac),flat spectrum radio quasars(FSRQ) have much larger mean redshift, Doppler factor,intrinsic gamma-ray luminosity,black hole mass and accretion rate.Using linear regression analysis and Pearson partial analysis,a strong correlations between intrinsic gamma-ray luminosity and black hole mass,between intrinsic gamma-ray luminosity and intrinsic accretion rate were found too,which suggested that the produce of gamma-ray had close relationship with black hole mass and accretion.At the same time,these results supported that jets were powered by energy extraction from both accretion and black hole spin.
引文
[1] 刘文广,李冬冬,熊定荣,等.费米耀变体源多波段辐射流量的相关性分析[J].云南师范大学学报:自然科学版,2012,32(5):1-6.
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[14] SBARRATO T,GHISELLINI G,MARASCHI L,et al.The relation between broad lines and γ-ray luminosities in Fermi blazars[J].MNRAS,2012,421(2):1 764-1 778.
[15] ACKERMANN M,AJELLO M,ALLAFORT A,et al.The radio/gamma-ray connection in active galactic nuclei in the era of the Fermi large area telescope[J].ApJ,2011,41(1):30.
[16] FAN J H,YANG J H,YUAN Y H,et al.The spectral index properties of Fermi Blazars[J].ApJ,2012,761(2):125.
[17] CHAI B,CAO X,GU M.What governs the bulk velocity of the jet components in active galactic nuclei?[J].ApJ,2012,759(2):114.
[2] ABDO A A,ACKERMANN M,AJELLO M,et al.Fermi large area telescope first source catalog[J].ApJS,2010,188(2):405-436.
[3] CHENG K S,ZHANG X,ZHANG L.Gamma-ray and multi-wave band emission from gamma-ray-loud Blazars[J].ApJ,2000,537(1):80-89.
[4] FAN Z H,CAO X W,GU M F.A test of external compton models for gamma-ray active galactic nuclei[J].ApJ,2006,646(1):8-27.
[5] GHISELLINI G,TAVECCHIO F,FOSCHANI L,et al.The transition between BL Lac objects and flat spectrum radio quasars[J].MNRAS,2011,414(3):2 674-2 689.
[6] XIE G Z,ZHOU S B,LIANG E W.The mass-luminosity relation,accretion rate-luminosity relation and evolutionary sequence of blazars[J].AJ,2004,127(1):53-57.
[7] LIANG E W,LIU H T.The masses of central supermassive black holes and the variability time-scales in gamma-ray loudblazars[J].MNRAS,2003,340(2):632-638.
[8] ACKERMANN M,AJELLO M,ALLAFORT A,et al.The second catalog of active galactic nuclei detected by the Fermi large area telescope[J].ApJ,2011,743(2):217-234.
[9] XIE G Z,LIANG E W,XIE Z H,et al.Supermassive black holes in BL Lacertae objects:estimated masses and their relation to nuclear luminosity[J].AJ,2002,123(5):2 352-2 357.
[10] XIE G Z,LIU F K,LIU B F,et al.Observational distinction between two types of active galactic nuclei[J].AJ,1991,101:71-77.
[11] FAN J H,XIE G Z,BACON R.The central black hole masses and Doppler factors of the gamma-ray loud Blazars[J].A&AS,1999,136(1):13-18.
[12] ACKERMANN M,AJELLO M,ALLAFORT A,et al.GeV observations of star-forming galaxies with Fermi LAT[J].ApJ,2012,755(2):164-180.
[13] VENTERS T M,PAVLIDOU V,REYES L C.The extragalactic background light absorption feature in the Blazar component of the extragalactic gamma-ray background[J].ApJ,2009,703(2):1 939-1 946.
[14] SBARRATO T,GHISELLINI G,MARASCHI L,et al.The relation between broad lines and γ-ray luminosities in Fermi blazars[J].MNRAS,2012,421(2):1 764-1 778.
[15] ACKERMANN M,AJELLO M,ALLAFORT A,et al.The radio/gamma-ray connection in active galactic nuclei in the era of the Fermi large area telescope[J].ApJ,2011,41(1):30.
[16] FAN J H,YANG J H,YUAN Y H,et al.The spectral index properties of Fermi Blazars[J].ApJ,2012,761(2):125.
[17] CHAI B,CAO X,GU M.What governs the bulk velocity of the jet components in active galactic nuclei?[J].ApJ,2012,759(2):114.