2016ApJ...822L..13K


C.D.S. - SIMBAD4 rel 1.7 - 2019.12.08CET15:09:34

2016ApJ...822L..13K - Astrophys. J., 822, L13-L13 (2016/May-1)

Evidence for two lognormal states in multi-wavelength flux variation of FSRQ PKS 1510-089.

KUSHWAHA P., CHANDRA S., MISRA R., SAHAYANATHAN S., SINGH K.P. and BALIYAN K.S.

Abstract (from CDS):

We present a systematic characterization of multi-wavelength emission from blazar PKS 1510-089 using well-sampled data at near-infrared (NIR), optical, X-ray, and γ-ray energies. The resulting flux distributions, except at X-rays, show two distinct lognormal profiles corresponding to a high and a low flux level. The dispersions exhibit energy-dependent behavior except in the LAT γ-ray and optical B-band. During the low level flux states, it is higher toward the peak of the spectral energy distribution, with γ-ray being intrinsically more variable followed by IR and then optical, consistent with mainly being a result of varying bulk Lorentz factor. On the other hand, the dispersions during the high state are similar in all bands except the optical B-band, where thermal emission still dominates. The centers of distributions are a factor of ∼4 apart, consistent with anticipation from studies of extragalactic γ-ray background with the high state showing a relatively harder mean spectral index compared to the low state.

Abstract Copyright: © 2016. The American Astronomical Society. All rights reserved.

Journal keyword(s): acceleration of particles - galaxies: active - galaxies: jets - gamma rays: galaxies - quasars: individual: PKS 1510-089 - radiation mechanisms: non-thermal

Simbad objects: 3

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Number of rows : 3

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 NAME M87 Jet Rad 12 30 49.423 +12 23 28.04           ~ 166 1
2 QSO J1512-0906 QSO 15 12 50.53292491 -09 05 59.8295878   16.74 16.54     ~ 1123 1
3 QSO B2155-304 BLL 21 58 52.0651817803 -30 13 32.120657891   13.36 13.09 12.62   ~ 1520 1

    Equat.    Gal    SGal    Ecl

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2019.12.08-15:09:34

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