2014MNRAS.439.2933Y


C.D.S. - SIMBAD4 rel 1.7 - 2019.10.23CEST16:13:12

2014MNRAS.439.2933Y - Mon. Not. R. Astron. Soc., 439, 2933-2942 (2014/April-2)

The physical properties of Fermi BL Lac objects jets.

YAN D., ZENG H. and ZHANG L.

Abstract (from CDS):

We investigate the physical properties of BL Lac objects (BL Lacs) jets by modelling the quasi-simultaneous spectral energy distributions (SEDs) of 22 Fermi BL Lacs in the frame of a simple one-zone synchrotron self-Compton (SSC) model. We obtained the best-fitting model parameters and their uncertainties for each BL Lac through the χ2-minimization procedure and discussed their implications on the physical processes. The modelling results show that the one-zone SSC model can successfully fit the SEDs of high-synchrotron-peaked BL Lacs (HBLs) and intermediate-synchrotron-peaked BL Lacs (IBLs), but fails to explain the SEDs of low-synchrotron-peaked BL Lacs. The statistical analysis results for model parameters are summarized as follows. (1) No correlation is found between magnetic field (B) and the broken energy of relativistic electrons distribution (γ^′_b) for HBLs and IBLs, but there are inverse correlations between γ^′_b and the radius of emitting blob (R^′_b) as well as the electrons number K^′_e for HBLs and IBLs. It is therefore concluded that the variation of γ^′_b is mainly caused by that of R^′_b rather than B for HBLs and IBLs. (2) The Poynting flux in jets cannot account for the observed radiations since the power in Poynting flux is smaller than the radiative power, and the cold protons could be the primary energy carrier in the jets.

Abstract Copyright: © 2014 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society (2014)

Journal keyword(s): radiation mechanisms: non-thermal - galaxies: active - galaxies: jets

Simbad objects: 22

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Number of rows : 22

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2019
#notes
1 2FGL J0033.5-1921 BLL 00 33 34.3798818431 -19 21 33.135188391   16.8 16.3 16.6   ~ 83 0
2 QSO B0048-09 BLL 00 50 41.31738756 -09 29 05.2102688 16.74 16.39 16.22 16.14   ~ 412 2
3 QSO B0317+18 BLL 03 19 51.8081953152 +18 45 34.570122144     18.12     ~ 183 0
4 QSO B0414+009 BLL 04 16 52.4945787354 +01 05 23.896410061   16.86 16.38 16   ~ 236 0
5 QSO B0426-380 BLL 04 28 40.4242766573 -37 56 19.583011524   18.96 19.0 17.21   ~ 237 1
6 6dFGS gJ044924.7-435009 BLL 04 49 24.700 -43 50 08.93 14.95 17.52 15.24 16.27   ~ 120 1
7 QSO B0537-441 BLL 05 38 50.36155219 -44 05 08.9389165   15.77 16.48 16   ~ 764 2
8 8C 0716+714 BLL 07 21 53.4484901266 +71 20 36.362058601   15.5 14.17 14.27   ~ 1100 1
9 QSO J0854+2006 BLL 08 54 48.8749311881 +20 06 30.642936668   15.91 15.43 15.56   ~ 1943 1
10 7C 101250.10+485321.00 QSO 10 15 57.6164469317 +48 37 59.660849082   19.86 19.51     ~ 63 1
11 4C 01.28 BLL 10 58 29.60520747 +01 33 58.8237691   18.74 18.28 16.68   ~ 618 2
12 7C 1055+5644 BLL 10 58 37.7276722520 +56 28 11.207685679   16.80 16.31 14.58   ~ 165 2
13 Mrk 421 BLL 11 04 27.3139210166 +38 12 31.798324828   13.50 12.90 8.31   ~ 2330 1
14 6C 121520+302351 BLL 12 17 52.0819140772 +30 07 00.636792927   16.07 15.62 13.47   ~ 392 1
15 7C 1219+2830 BLL 12 21 31.6902446545 +28 13 58.500383827   16.81 16.11 14.24   ~ 763 1
16 LB 2449 BLL 12 48 18.7850212579 +58 20 28.716290009   16.10 15.78 15.19   ~ 144 1
17 4C 39.49 BLL 16 53 52.21668494 +39 45 36.6089458 14.09 14.15 13.29 8.26   ~ 1876 2
18 QSO B1717+178 BLL 17 19 13.0484094263 +17 45 06.437888139   20.10 19.1 17.28   ~ 182 1
19 4C 09.57 BLL 17 51 32.81857318 +09 39 00.7284829   17.46 16.78 15.57   ~ 784 1
20 QSO B2155-304 BLL 21 58 52.0651817803 -30 13 32.120657891   13.36 13.09 12.62   ~ 1520 1
21 NAME BL Lac BLL 22 02 43.2913773726 +42 16 39.978417860   15.66 14.72     ~ 1975 1
22 2MASX J22500577+3824371 BLL 22 50 05.7480525271 +38 24 37.195160708     16.00 14.8   ~ 94 1

    Equat.    Gal    SGal    Ecl

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2019.10.23-16:13:12

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