SIMBAD references

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

goto Full paper

goto View the reference in ADS

To bookmark this query, right click on this link: simbad:2016ApJ...822L..13K and select 'bookmark this link' or equivalent in the popup menu


2019.11.15-07:22:03

© Université de Strasbourg/CNRS

    • Contact