IHEP OpenIR
CORRELATIONS AMONG THE JET, ACCRETION DISK, AND BROAD-LINE REGION OF FLAT SPECTRUM RADIO QUASARS
Zhang, J; Xue, ZW; He JJ(贺健健); Zhang SN(张双南); He, JJ; Liang, EW; Zhang, SN
2015
Source PublicationASTROPHYSICAL JOURNAL
ISSN0004-637X
EISSN1538-4357
Volume807Issue:1Pages:51
SubtypeArticle
AbstractOn the basis of the spectral energy distribution fits and emission line fluxes of 18 GeV flat spectrum radio quasars (FSRQs), we calculate their jet power (P-jet), disk luminosity (L-disk), and broad-line region luminosity (L-BLR). No correlation between P-jet with either L-disk or L-BLR is found, but L-BLR is strongly correlated with L-disk. On average, the broad-line region (BLR) covering factors of GeV-FSRQs in our sample are smaller than those of large samples of quasars. P-jet of some GeV-FSRQs are higher than their L-disk, but all of them are lower than the accretion power of black holes (BHs), which is estimated by (M) over dotc(2) = L-disk/0.1, indicating that the total accretion power of BHs is sufficient to drive the jets in these sources; however,. lack of correlation between L-disk and P-jet of the GeV-FSRQs may suggest that their jets are launched by the Blandford-Znajek process via extracting the rotational energy of BHs. Using the L-BLR-L-disk relation of the GeV-FSRQs, we estimate L-disk of a BL Lac sample with their L-BLR. A comparison of L-BLR and the Eddington ratio (L-disk/L-Edd) among BL Lacs, very radio-loud NLS1 galaxies, and FSRQs is also presented. It is found that along with the BL Lac-NLS1-FSRQ sequence L-BLR and L-disk/L-Edd increase, which may correspond to the change of the accretion disk structure and the transformation of the dominant mechanism for jet launching. This is also consistent with the division of blazar parent populations, i.e., low/high-excitation radio galaxies.
Keywordaccretion, accretion disks BL Lacertae objects: general galaxies: jets galaxies: Seyfert quasars: general
Subject AreaAstronomy & Astrophysics
DOI10.1088/0004-637X/807/1/51
Indexed BySCI ; INSPIREHEP ; ADS
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000358945200051
ADS Bibcode2015ApJ...807...51Z
ADS URLhttps://ui.adsabs.harvard.edu/abs/2015ApJ...807...51Z
ADS CITATIONShttps://ui.adsabs.harvard.edu/abs/2015ApJ...807...51Z/citations
inspireid1343476
inspireURLhttps://inspirehep.net/literature/1343476
Citation statistics
Cited Times:34 [INSPIRE]
Cited Times:43 [ADS]
Document Type期刊论文
Identifierhttp://ir.ihep.ac.cn/handle/311005/228573
Collection中国科学院高能物理研究所
Recommended Citation
GB/T 7714
Zhang, J,Xue, ZW,He JJ,et al. CORRELATIONS AMONG THE JET, ACCRETION DISK, AND BROAD-LINE REGION OF FLAT SPECTRUM RADIO QUASARS[J]. ASTROPHYSICAL JOURNAL,2015,807(1):51.
APA Zhang, J.,Xue, ZW.,贺健健.,张双南.,He, JJ.,...&Zhang, SN.(2015).CORRELATIONS AMONG THE JET, ACCRETION DISK, AND BROAD-LINE REGION OF FLAT SPECTRUM RADIO QUASARS.ASTROPHYSICAL JOURNAL,807(1),51.
MLA Zhang, J,et al."CORRELATIONS AMONG THE JET, ACCRETION DISK, AND BROAD-LINE REGION OF FLAT SPECTRUM RADIO QUASARS".ASTROPHYSICAL JOURNAL 807.1(2015):51.
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