X-ray and gamma-ray variability of Mrk 421
arXiv:1608.00289 · doi:10.1093/mnras/stu1060
Abstract
We present an ordinary case in the momentum diffusion equation for the electron spectrum evolution and investigate the energy spectra and time dependent properties of flare in Mrk 421 in the frame of a time-dependent one-zone synchrotron self-Compton model. In this model, electrons are accelerated to extra-relativistic energy through the strong magnetic turbulence and evolve with time, and non-thermal photons are produced by both synchrotron and inverse Comtpon scattering off synchrotron photons. Moreover, non-thermal photons during a pre-flare are produced by the relativistic electrons in the steady state and those during a flare are produced by the electrons whose injection rate is changed during some time interval. We apply the model to the energy spectra and time-dependent properties of flares in Mrk 421 by reproducing the pre-burst spectrum of the source and varying the injection rate in the Bohm diffusion (q=1) and the hard sphere approximation (q=2) case, respectively. Our results show that Bohm diffusion case leads to hard photon spectra, and hard sphere case approximation seems to reproduce the energy spectra and the time dependent properties of flare still better.
arXiv comment10 pages, 7 figures, published in MNRAS (2014MNRAS.442.3166Z)
References in corpus (48)
- An Exceptional VHE Gamma-Ray Flare of PKS 2155-304
- Variable VHE gamma-ray emission from Markarian 501
- Fast TeV variability in blazars: jets in a jet
- MAGIC discovery of VHE Emission from the FSRQ PKS 1222+21
- Fermi-LAT Observations of Markarian 421: the Missing Piece of its Spectral Energy Distribution
- Implications of Cosmological Gamma-Ray Absorption II. Modification of gamma-ray spectra
- Modeling the Emission Processes in Blazars
- Synchrotron Self-Compton Analysis of TeV X-ray Selected BL Lacertae Objects
- Stochastic Acceleration and the Evolution of Spectral Distributions in SSC Sources: A Self Consistent Modeling of Blazars' Flares
- Implications of very rapid TeV variability in blazars
- Probing quantum gravity using photons from a flare of the active galactic nucleus Markarian 501 observed by the MAGIC telescope
- Klein-Nishina Effects in the Spectra of Non-Thermal Sources Immersed in External Radiation Fields
- A Multi-wavelength View of the TeV Blazar Markarian 421: Correlated Variability, Flaring, and Spectral Evolution
- Relativistic beaming and gamma-ray brightness of blazars
- Reconnection-driven plasmoids in blazars: fast flares on a slow envelope
- Decelerating Flows in TeV Blazars: A Resolution to the BL Lac -- FR I Unification Problem
- On the Momentum Diffusion of Radiating Ultrarelativistic Electrons in a Turbulent Magnetic Field
- A Study of High Energy Emission from the TeV blazar Mrk 501 during Multiwavelength Observations in 1996
- On the origin of the gamma-ray emission from the flaring blazar PKS 1222+216
- Simultaneous Constraints on the Spectrum of the Extragalactic Background Light and the Intrinsic Tev Spectra of Mrk 421, Mrk 501, and H1426+428
- Stochastic particle acceleration and synchrotron self--Compton radiation in TeV blazars
- Rapid TeV variability in Blazars as result of Jet-Star Interaction
- Radiative Properties of Reconnection-Powered Minijets in Blazars
- Signatures of synchrotron emission and of electron acceleration in the X-ray spectra of Mrk 421
- Variability in Blazars: Clues from PKS 2155-304
- Four Years Monitoring of Blazar PKS 2155-304 with BeppoSAX: Probing the Dynamics of the Jet
- Rapid TeV Gamma-Ray Flaring of BL Lacertae
- The Hard VHE Gamma-ray Emission in High-Redshift TeV Blazars: Comptonization of Cosmic Microwave Background Radiation in an Extended Jet?
- VERITAS Observations of a Very High Energy Gamma-ray Flare from the Blazar 3C 66A
- Multiwavelength observations of a TeV-Flare from W Comae
- Stochastic Acceleration in Relativistic Parallel Shocks
- Observing Mkn 421 with XMM--Newton: the EPIC--PN point of view
- Time-Dependent Models for Blazar Emissions with the Second-Order Fermi Acceleration
- Time dependent simulations of multiwavelength variability of the blazar Mrk 421 with a Monte Carlo multi-zone code
- Fermi-LAT observations of the exceptional gamma-ray outbursts of 3C 273 in September 2009
- Multiwavelength study of TeV Blazar Mrk421 during giant flare
- A current driven instability in parallel, relativistic shocks
- TeV variability in blazars: how fast can it be?
- Resolving Doppler-factor crisis in AGNs: non-steady magnetized outflows
- On the Origin of Rapid Flares in TeV Blazars
- MAGIC TeV Gamma-Ray Observations of Markarian 421 during Multiwavelength Campaigns in 2006
- Particle-acceleration timescales in TeV blazar flares
- Rapid TeV Flaring in Markarian 501
- On the rapid TeV flaring activity of Markarian 501
- "Leading blob" model in a stochastic acceleration scenario: the case of the 2009 flare of Mkn~501
- TeV blazar variability: the firehose instability?
- Modelling the -ray variability of 3C 273
- Observations of AGNs using PACT
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- Evaluating the optical classification of Fermi BCUs using machine learning
- On the origin of the hard X-Ray excess of high-synchrotron-peaked BL Lac object Mrk 421
- Connecting steady emission and Very High Energy flaring states in blazars: the case of Mrk 421
- On the origin of the soft photons of the high synchrotron peaked blazar : PKS 1424+240
- Inverse Compton X-ray Emissions from TeV blazar Mrk421 during a Historical Low-Flux State Observed with NuSTAR
- Modelling the multi-wavelength emission of flat spectrum radio quasar 3C 279
- Verification of the diffusive shock acceleration in Mrk 501
- A time dependent approach to model X-ray and --ray light curves of Mrk 421 observed during the flare in February 2010
- Constraints on the location of the gamma-ray emission region for the gamma-ray-loud radio source GB 1310+487
- A time-dependent particle acceleration and emission model: Understanding the particle spectral evolution and blazar flares
- On the origin of GeV spectral break for Fermi blazars: 3C 454.3
- Unfolding the X-ray Spectral Curvature of Mkn 421 for Further Clues
- Optical polarization properties of February 2010 outburst of the blazar Mrk 421
- Correlations between X-ray spectral parameters of Mkn 421 using long-term Swift-XRT data