J/A+A/436/799 X- and gamma-ray fluxes of γ-ray-loud blazars (Fan+, 2005)
The basic parameters of γ-ray-loud blazars.
Fan J.H.
<Astron. Astrophys., 436, 799-804 (2005)>
=2005A&A...436..799F 2005A&A...436..799F
ADC_Keywords: QSOs ; BL Lac objects ; Gamma rays ; X-ray sources
Keywords: galaxies: quasars: general - galaxies: BL Lacertae objects: general -
galaxies: jets - galaxies: nuclei
Abstract:
We determined the basic parameters, such as the central black hole
mass (M), the boosting factor (or Doppler factor) (δ) the
propagation angle (Φ) and the distance along the axis to the site
of γ-ray production (d) for 23 γ-ray-loud blazars using
their available variability timescales.
Description:
From the available X-ray and γ-ray data, we can estimate the
central black hole mass, MT (see Table 1) and three other parameters
(Φ, δ, d, these values are not listed in Table 1).
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 81 24 Black hole mass for 23 γ-ray-loud blazars
refs.dat 75 21 References
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Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 8 A8 --- QSO Name, based on B1950 position
9 A1 --- n_QSO [*] Note on QSO (1)
10- 14 F5.3 --- z Redshift
16 A1 --- Type [QB] Q: flat spectral radio quasar,
B: BL Lac object
18- 23 F6.3 uJy f1keV 1keV X-ray flux density
25- 28 A4 --- r_f1keV Reference for 1kev flux
30- 33 F4.2 --- alphaX X-ray spectral index
35- 38 A4 ---- r_alphaX Reference for alphaX
40- 44 F5.2 10-6/cm2/s F(>100MeV) Observed gamma-ray flux, in
10-6photon/cm2/s
46- 49 F4.2 --- Gamma gamma spectral index
51- 56 F6.2 h DeltaTD Doubling time scale (2)
58- 61 A4 --- r_DeltaTD Reference for DeltaTD
63- 69 F7.4 10+41W Liso Observed isotropic luminosity
71- 75 F5.2 10+7solMass M1 Central black hole mass for λ=1
77- 81 F5.2 10+7solMass M0.1 Central black hole mass for λ=0.1
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Note (1): 1652+399 modified into 1652+398
Note (2): Since we are interested in the variability timescale, we
present here only the γ-ray-loud blazars with detected short
time scale variability. Since the variability timescale corresponds
to the different amplitude of variation for different sources and/or
different observational periods, we use the doubling timescale
ΔTD=(Fmin/ΔF)/ΔT, as the variability time scale,
where ΔF=Fmax-Fmin is the variation of the flux over the time
ΔT.
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Byte-by-byte Description of file: refs.dat
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Bytes Format Units Label Explanations
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1- 4 A4 --- Ref Reference code
6- 24 A19 --- BibCode BibCode
26- 43 A18 --- Aut Auhtor's name
47- 76 A30 --- Com Comments
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Nomenclature Notes:
From electronic version of the journal
(End) Patricia Vannier [CDS] 27-Jun-2005