Time-Dependent Modeling of Gamma-ray Flares in Blazar PKS1510-089

Abstract

Here we present a new approach for constraining luminous blazars, incorporating fully time-dependent and self-consistent modeling of bright gamma-ray flares of PKS1510-089 resolved with Fermi-LAT, in the framework of the internal shock scenario. The results of our modeling imply the location of the gamma-ray flaring zone outside of the broad-line region, namely around 0.3pc from the core for a free-expanding jet with the opening angle Gamma, θ_\mathrm{jet} \simeq 1 (where Gamma is the jet bulk Lorentz factor), up to \simeq 3pc for a collimated outflow with Gamma, θ_\mathrm{jet} \simeq 0.1. Moreover, under the Gamma, θ_\mathrm{jet} \simeq 1 condition, our modeling indicates the maximum efficiency of the jet production during the flares, with the total jet energy flux strongly dominated by protons and exceeding the available accretion power in the source. This is in contrast to the quiescence states of the blazar, characterized by lower jet kinetic power and an approximate energy equipartition between different plasma constituents. We demostrate how strictly simultaneous observations of flaring PKS1510-089 at optical, X-ray, and GeV photon energies on hourly timescales, augmented by extensive simulations as presented in this paper, may help to impose further precise constraints on the magnetization and opening angle of the emitting region. Our detailed modeling implies in addition that a non-uniformity of the Doppler factor across the jet, caused by the radial expansion of the outflow, may lead to a pronounced time distortion in the observed gamma-ray light curves, resulting in particular in asymmetric flux profiles with substantially extended decay phases.

11 pages, 7 figures, accepted for publication in ApJ

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Cited by in corpus (32)

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• Observation of a sudden cessation of a very-high-energy gamma-ray flare in PKS 1510-089 with H.E.S.S. and MAGIC in May 2016
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• Multicolor Optical Monitoring of the Blazar S5 0716+714 from 2017 to 2019
• Two-zone emission modeling of PKS 1510-089 during the high state of 2015
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• Inverse Compton X-ray Emissions from TeV blazar Mrk421 during a Historical Low-Flux State Observed with NuSTAR
• Probing the Jets of Blazars Using the Temporal Symmetry of Their Multi-Wavelength Outbursts
• Leptonic and Lepto-Hadronic Modeling of the Nov. 2010 flare from 3C 454.3
• The vanishing of the primary emission region in PKS 1510-089
• Multiwavelength Study of the Quiescent States of Six Brightest Flat Spectrum Radio Quasars detected by Fermi-LAT
• Search for Intra-day Optical Variability in $\gamma$-ray--loud Blazars S5 0716+714 and 3C 273
• Multi-wavelength study of flaring activity in HBL 1ES 1959+650 during 2015-16
• Ejection of Double knots from the radio core of PKS 1510--089 during the strong gamma-ray flares in 2015
• No Evidence of Intrinsic Optical/Near-Infrared Linear Polarization for V404 Cygni During its Bright Outburst in 2015: Broadband Modeling and Constraint on Jet Parameters
• Optical intra-day variability in 3C 66A: 10 years of observations
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• Gamma-Ray Flares in Long Term Light Curve of 3C 454.3
• A Method for Locating High Energy Dissipation Region in Blazar
• Formation of very hard electron and gamma-ray spectra of flat spectrum radio quasar in fast-cooling regime
• Search for intra-day optical variability in Mrk 501
• Repeated patterns of gamma-ray flares suggest structured jets of blazars as likely neutrino sources
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• Observational Implications of OJ 287's Predicted 2022 Disk Impact in the Black Hole Binary Model
• Multiwavelength study of radio galaxy Pictor A: detection of western hotspot in far-UV and possible origin of high energy emissions
• Magnetization of Relativistic Current-Carrying Jets with Radial Velocity Shear
• The peculiar new state of the blazar PKS 1510-089
• 20 years of monitoring: PKS 2155-304 and PKS 1510-089 in the eyes of Swift and Fermi. II. PKS 1510-089 and comparison