J/ApJ/925/120 Luminosities & peak frequencies of 4FGL blazars (Yang+, 2022)
Beaming effect in Fermi blazars.
Yang W.X., Wang H.G., Liu Y., Yang J.H., Xiao H.B., Ye X.H., Pei Z.Y.,
Zhang L.X., Fan J.H.
<Astrophys. J., 925, 120 (2022)>
=2022ApJ...925..120Y 2022ApJ...925..120Y
ADC_Keywords: BL Lac objects; QSOs; Active gal. nuclei; Gamma rays; Redshifts;
Optical; X-ray sources; Radio sources
Keywords: Active galactic nuclei ; Blazars
Abstract:
Blazars show extreme observational properties that are due to the
beaming effect with the jet being close to the line of sight. It was
found that the observed luminosity is anticorrelated with the
synchrotron peak frequency but the debeamed luminosity and the
frequency is positively correlated. In this work, we revisit this
correlation for a large sample of 255 blazars from the fourth Fermi
catalog with available Doppler factors. Our analysis comes to the
following conclusions. (1) The observed radio, X-ray, γ-ray, and
synchrotron peak luminosity are all anticorrelated with the peak
frequency, but the debeamed luminosity is positively correlated with
the debeamed peak frequency. The anticorrelation is due to a selection
effect or a beaming effect. (2) The Compton dominance parameter is
correlated with both the bolometric luminosity and Doppler factor,
implying that the more highly Compton-dominated sources are more
luminous. (3) The bolometric luminosity can be represented by the
γ-ray luminosity for Fermi blazars.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 126 255 Fermi blazars with Doppler factors
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See also:
J/ApJS/123/79 : Third EGRET catalog (3EG) (Hartman+, 1999)
J/A+A/375/739 : Hard X-ray properties of blazars (Donato+, 2001)
J/ApJ/609/539 : Kinematics of parsec-scale radio jets (Kellermann+, 2004)
J/A+A/434/385 : X-ray/radio data of high energy peaked BL Lacs (Giommi+, 2005)
J/AJ/130/1389 : Linear polarization of AGN jets at 15GHz (Lister+, 2005)
J/A+A/488/867 : Synchrotron peak frequency of 135 AGN (Nieppola+, 2008)
J/ApJ/706/1253 : MOJAVE VII. Blazar jet acceleration (Homan+, 2009)
J/AJ/138/1874 : MOJAVE. VI. Kinematic analysis of blazar jets (Lister+, 2009)
J/ApJ/716/30 : SED of Fermi bright blazars (Abdo+, 2010)
J/ApJ/761/125 : X and γ spectral indexes of Fermi blazars (Fan+, 2012)
J/A+A/541/A160 : Planck + X/γ observations of blazars (Giommi+, 2012)
J/ApJ/758/84 : Relativistic jets in RRFID database. II. 10yr (Piner+, 2012)
J/other/RAA/13.259 : γ-ray Doppler factor for Fermi blazars (Fan+, 2013)
J/other/RAA/14.1135 : Doppler factor for a Fermi blazar sample (Fan+, 2014)
J/other/Nat/515.376 : Power of relativistic jets in blazars (Ghisellini+, 2014)
J/ApJS/218/23 : Fermi LAT third source catalog (3FGL) (Acero+, 2015)
J/ApJ/810/L9 : 1.5Jy MOJAVE AGN sample and 3FGL data (Lister+, 2015)
J/ApJS/226/20 : X-ray, opt. & radio SEDs of Fermi blazars (Fan+, 2016)
J/AJ/152/12 : MOJAVE. XIII. New 15GHz obs. on 1994-2013 (Lister+, 2016)
J/ApJS/224/26 : SEDs of Roma BZCAT blazars (Mao+, 2016)
J/ApJ/835/L38 : Fermi blazars with Doppler factors (Fan+, 2017)
J/ApJS/235/39 : Jet properties of γ-ray-loud 3FGL AGNs (Chen, 2018)
J/ApJ/866/137 : Bright blazars variability brightness temp. (Liodakis+, 2018)
J/ApJ/874/43 : MOJAVE. XVII. pc-scale jet kinematics of AGNs (Lister+, 2019)
J/ApJ/887/135 : V-band, 5100Å and broad emission LCs of Mrk 79 (Lu+, 2019)
J/ApJS/247/33 : The Fermi LAT fourth source catalog (4FGL) (Abdollahi+, 2020)
J/ApJ/892/105 : 4th catalog of Fermi LAT-detected AGNs (4LAC) (Ajello+, 2020)
J/ApJS/253/10 : 12yrs of R-band photometry of the quasar 3C 454.3 (Fan+, 2021)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 4 A4 --- --- [4FGL]
6- 17 A12 --- 4FGL 4FGL designation (JHHMM.m+DDMM)
19- 30 A12 --- OName Other designation
32- 50 A19 --- Ctpt Counterpart name
52- 59 F8.6 --- z [0.018/3.033]? redshift
61- 65 A5 --- Class 4FGL Class (1)
67- 71 F5.2 [Hz] lognu [12.23/16.74] log, synchrotron peak frequency
73- 78 F6.3 [10-7W] logLp [43.39/46.95] log, synchrotron peak luminosity
80- 85 F6.3 [10-7W] logLs [43.7/47.31] log, integral synchrotron luminosity
87- 92 F6.3 [10-7W] logLR [39/44.61] log, radio luminosity (1.4GHz)
94- 99 F6.3 [10-7W] logLO [43/47.4]? log, optical luminosity (R-band)
101-106 F6.3 [10-7W] logLX [41.75/46.5]? log, X-ray luminosity
108-113 F6.3 [10-7W] logLg [44.38/49.1] log, gamma-ray luminosity (2)
115-120 F6.3 [10-7W] Lbol [44.56/49.1] log, bolometric luminosity
122-126 F5.2 --- dR [0.2/88.5] Doppler factor from
Liodakis+ (2018, J/ApJ/866/137)
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Note (1): 4FGL class as follows:
FSRQ = flat spectrum radio quasar (181 occurrences)
BLLAC = BL Lacertae object (74 occurrences)
Note (2): calculated from the photons and the photon spectral index from
Abdollahi+ (2020, J/ApJS/247/33)
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History:
From electronic version of the journal
(End) Prepared by [AAS], Emmanuelle Perret [CDS] 06-Sep-2023