J/ApJ/835/L38 Fermi blazars with Doppler factors (Fan+, 2017)
Intrinsic correlations for flaring blazars detected by Fermi.
Fan J.H., Yang J.H., Xiao H.B., Lin C., Constantin D., Luo G.Y., Pei Z.Y.,
Hao J.M., Mao Y.W.
<Astrophys. J., 835, L38-L38 (2017)>
=2017ApJ...835L..38F 2017ApJ...835L..38F (SIMBAD/NED BibCode)
ADC_Keywords: Active gal. nuclei ; Gamma rays ; Radio sources ; X-ray sources ;
Galaxies, optical ; BL Lac objects ; QSOs
Keywords: BL Lacertae objects: general; galaxies: active; galaxies: jets
quasars: general
Abstract:
Blazars are an extreme subclass of active galactic nuclei. Their rapid
variability, luminous brightness, superluminal motion, and high and
variable polarization are probably due to a beaming effect. However,
this beaming factor (or Doppler factor) is very difficult to measure.
Currently, a good way to estimate it is to use the timescale of their
radio flares. In this Letter, we use multiwavelength data and Doppler
factors reported in the literature for a sample of 86 flaring blazars
detected by Fermi to compute their intrinsic multiwavelength data and
intrinsic spectral energy distributions and investigate the
correlations among observed and intrinsic data. Quite interestingly,
intrinsic data show a positive correlation between luminosity and peak
frequency, in contrast with the behavior of observed data, and a
tighter correlation between γ-ray luminosity and the
lower-energy ones. For flaring blazars detected by Fermi, we conclude
that (1) observed emissions are strongly beamed; (2) the
anti-correlation between luminosity and peak frequency from the
observed data is an apparent result, the correlation between intrinsic
data being positive; and (3) intrinsic γ-ray luminosity is
strongly correlated with other intrinsic luminosities.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 96 86 Sample of Fermi blazars with Doppler factors
fig1.dat 168 86 Correlations between luminosity and peak
frequency plus correlations for intrinsic
values at different wavelengths (figures 1 and 2)
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See also:
VII/274 : The Roma BZCAT - 5th edition (Massaro+, 2015)
J/ApJS/123/79 : Third EGRET catalog (3EG) (Hartman+, 1999)
J/A+A/436/799 : X- & gamma-ray fluxes of γ-ray-loud blazars (Fan+, 2005)
J/A+A/445/441 : SED of BL Lacertae objects (Nieppola+, 2006)
J/A+A/488/867 : Synchrotron peak frequency of 135 AGN (Nieppola+, 2008)
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/ApJS/199/31 : Fermi LAT second source catalog (2FGL) (Nolan+, 2012)
J/A+A/541/A160 : Planck + X/γ observations of blazars (Giommi+, 2012)
J/ApJ/761/125 : X and γ spectral indexes of Fermi blazars (Fan+, 2012)
J/ApJS/208/25 : Swift X-ray observations of 1FGL sources (Takeuchi+, 2013)
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/ApJS/218/23 : Fermi LAT third source catalog (3FGL) (Acero+, 2015)
J/ApJ/810/14 : Third catalog of LAT-detected AGNs (3LAC) (Ackermann+, 2015)
J/ApJS/224/26 : Spectral energy distributions of Roma BZCAT blazars
(Mao+, 2016)
J/ApJS/226/20 : X-ray, opt. + radio SEDs of Fermi blazars (Fan+, 2016)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 4 A4 --- --- [3FGL]
6- 17 A12 --- 3FGL 3rd Fermi catalog name (JHHMM.m+DDMM)
19- 32 A14 --- Name Counterpart name
34- 38 F5.3 --- z [0.05/2.4] Redshift
40- 43 A4 --- class SED classification
45- 49 F5.2 [Hz] lognu [12.1/15.2] Log synchrotron peak frequency
51- 55 F5.2 [10-7W] logLp [36.3/40.1] Log peak luminosity (erg/s)
57- 61 F5.2 [10-7W] logLbol [36.9/40.6] Log bolometric luminosity (erg/s)
63- 67 F5.2 [10-7W] logLR [34.1/37.8] Log radio luminosity (erg/s)
69- 73 F5.2 [10-7W] logLO [36.5/40.5] Log optical luminosity (erg/s)
75- 79 F5.2 [10-7W] logLX [35.3/40]? Log X-ray luminosity (erg/s)
81- 85 F5.2 [10-7W] logLG [35.8/41.1] Log Gamma-ray luminosity (erg/s)
87- 91 F5.2 --- delta [1.1/35.2] Doppler factor
93- 96 A4 --- ref Reference code (1)
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Note (1): Reference as follows:
F09 = Fan et al. (2009PASJ...61..639F 2009PASJ...61..639F);
H09 = Hovatta et al. (2009A&A...494..527H 2009A&A...494..527H);
LV99 = Lahteenimaki & Valtaoja (1999ApJ...521..493L 1999ApJ...521..493L);
S10 = Savolainen et al. (2010A&A...512A..24S 2010A&A...512A..24S).
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Byte-by-byte Description of file: fig1.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 4 A4 --- --- [3FGL]
6- 17 A12 --- 3FGL 3rd Fermi catalog name (JHHMM.m+DDMM)
19- 23 F5.2 [Hz] lognu [12.1/15.2] Log Synchrotron peak frequency
25- 29 F5.2 [Hz] lognu(i) [10.5/15] Log Intrinsic synchrotron peak
frequency
31- 34 F4.2 --- logdelta [0.04/1.6] Log Doppler factor
36- 40 F5.2 --- aR [-0.4/0.6] Radio spectral index
42- 46 F5.2 --- aO [-0.7/2.5] Optical spectral index
48- 50 A3 --- ref1 Reference of optical spectral index (1)
52- 55 F4.2 --- aX [0.1/2.1]? X-ray spectral index
57- 60 A4 --- ref2 Reference of X-ray spectral index (1)
62- 66 F5.2 [10-7W] logLG [35.8/41.1] Log Gamma-ray luminosity
68- 72 F5.2 [10-7W] logLX [35.3/40]? Log X-ray luminosity
74- 78 F5.2 [10-7W] logLO [36.5/40.5] Log Optical luminosity
80- 84 F5.2 [10-7W] logLR [34.1/37.8] Log Radio luminosity
86- 90 F5.2 [10-7W] logLp [36.3/40.1] Log Peak luminosity
92- 96 F5.2 [10-7W] logLbol [36.9/40.6] Log Bolometric luminosity
98-102 F5.2 [10-7W] logLG(i3) [32/37.7] Log Intrinsic gamma-ray luminosity;
p=2+a
104-108 F5.2 [10-7W] logLX(i3) [31.2/37.1]? Log Intrinsic X-ray luminosity;
p=2+a
110-114 F5.2 [10-7W] logLO(i3) [31.5/38.3] Log Intrinsic optical luminosity;
p=2+a
116-120 F5.2 [10-7W] logLR(i3) [31.9/35.8] Log Intrinsic radio luminosity;
p=2+a
122-126 F5.2 [10-7W] logLp(i3) [33.6/38.5] Log Intrinsic peak luminosity;
p=2+a
128-132 F5.2 [10-7W] logLbol(i3) [34.1/38.8] Log Intrinsic bolometric
luminosity; p=2+a
134-138 F5.2 [10-7W] logLG(i4) [30.5/37.4] Log Intrinsic gamma-ray
luminosity; p=3+a
140-144 F5.2 [10-7W] logLX(i4) [30.1/36.6]? Log Intrinsic X-ray luminosity;
p=3+a
146-150 F5.2 [10-7W] logLO(i4) [30.1/38.2] Log Intrinsic optical luminosity;
p=3+a
152-156 F5.2 [10-7W] logLR(i4) [30.5/35.4] Log Intrinsic radio luminosity;
p=3+a
158-162 F5.2 [10-7W] logLp(i4) [32.4/38.1] Log Intrinsic peak luminosity;
p=3+a
164-168 F5.2 [10-7W] logLbol(i4) [32.9/38.4] Log Intrinsic bolometric
luminosity; p=3+a
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Note (1): Reference as follows:
AV = averaged value;
B97A = Brinkmann et al. (1997, J/A+A/319/413);
E14 = Evans et al. (2014, IX/43);
F96 = Fan et al. (1996PYunO...1...22L 1996PYunO...1...22L);
FR14= Fan et al. (2014, J/other/RAA/14.1135);
G02 = Giommi et al. (2002babs.conf...63G);
R00 = Reich et al. (2000, J/A+A/363/141);
TW = this work.
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History:
From electronic version of the journal
(End) Prepared by [AAS], Emmanuelle Perret [CDS] 04-Sep-2017