Using the Markov Chain Monte Carlo method to study the physical properties GeV-TeV BL Lac objects

Abstract

We fit the spectral energy distributions (SEDs) of 46 GeV - TeV BL Lac objects in the frame of leptonic one-zone synchrotron self-Compton (SSC) model and investigate the physical properties of these objects. We use the Markov Chain Monte Carlo (MCMC) method to obtain the basic parameters, such as magnetic field (B), the break energy of the relativistic electron distribution (${\gamma }_{\mathrm{b}}^{\prime }$) and the electron energy spectral index. Based on the modeling results, we support the following scenarios on GeV-TeV BL Lac objects: (1) Some sources have large Doppler factors, implying other radiation mechanism should be considered. (2) Comparing with FSRQs, GeV-TeV BL Lac objects have weaker magnetic field and larger Doppler factor, which cause the ineffective cooling and shift the SEDs to higher bands. Their jet powers are around $4.0\times 10^{45}{\mathrm{erg}\cdot \mathrm{s}}^{-1}$, comparing with radiation power, $5.0\times 10^{42}{\mathrm{erg}\cdot \mathrm{s}}^{-1}$, indicating that only a small fraction of jet power is transformed into the emission power. (3) For some BL Lacs with large Doppler factors, their jet components could have two substructures, e.g., the fast core and the slow sheath. For most GeV-TeV BL Lacs, Kelvin-Helmholtz instabilities are suppressed by their higher magnetic fields, leading few micro-variability or intro-day variability in the optical bands. (4) Combined with a sample of FSRQs, an anti-correlation between the peak luminosity $L_{\mathrm{pk}}$ and the peak frequency ${\nu }_{\mathrm{pk}}$ is obtained, favoring the blazar sequence scenario. In addition, an anti-correlation between the jet power $P_{\mathrm{jet}}$ and the break Lorentz factor ${\gamma }_{\mathrm{b}}$ also supports the blazar sequence.

arXiv commentAccepted by PASJ

References in corpus (75)

• Cosmological parameters from CMB and other data: a Monte-Carlo approach
• On the Fate of Gas Accreting at a Low Rate onto a Black Hole
• A Unifying View of the Spectral Energy Distributions of Blazars
• The Spectral Energy Distribution of Fermi bright blazars
• A theoretical unifying scheme for gamma-ray bright blazars
• AGN Black Hole Masses and Bolometric Luminosities
• Leptonic and Hadronic Modeling of Fermi-Detected Blazars
• General physical properties of bright Fermi blazars
• A relativistic jetted outburst from a massive black hole fed by a tidally disrupted star
• Modeling the Extragalactic Background Light from Stars and Dust
• Formation of Hard Power-laws in the Energetic Particle Spectra Resulting from Relativistic Magnetic Reconnection
• The power of blazar jets
• The X-Ray Jet of PKS 0637-752: Inverse Compton Radiation from the Cosmic Microwave Background ?
• Synchrotron Self-Compton Analysis of TeV X-ray Selected BL Lacertae Objects
• A simplified view of blazars: clearing the fog around long-standing selection effects
• Advection-Dominated Accretion and Black Hole Event Horizons
• Spectral energy distributions of a large sample of BL Lacertae objects
• A Multi-wavelength View of the TeV Blazar Markarian 421: Correlated Variability, Flaring, and Spectral Evolution
• Multiwavelength Observations of Markarian 421 in March 2001: an Unprecedented View on the X-ray/TeV Correlated Variability
• Decelerating Flows in TeV Blazars: A Resolution to the BL Lac -- FR I Unification Problem
• An evolutionary scenario for blazar unification
• Spine-sheath layer radiative interplay in subparsec-scale jets and the TeV emission from M87
• Radio transients from stellar tidal disruption by massive black holes
• ASCA Observations of Blazars and Multiband Analysis
• Rapid variability in TeV blazars: the case of PKS 2155-304
• Radiation Mechanisms and Physical Properties of GeV-TeV BL Lac Objects
• Compton Dominance and the Blazar Sequence
• Efficient Production of High-energy Nonthermal Particles during Magnetic Reconnection in a Magnetically-dominated Ion-Electron Plasma
• Simultaneous multiwavelength observations of the second exceptional gamma-ray flare of PKS 2155-304 in July 2006
• What Types of Jets does Nature Make: A New Population of Radio Quasars
• Discovery of Very High Energy $\gamma$-Rays from Markarian~180 Triggered by an Optical Outburst
• Discovery of Very High Energy gamma-rays from the blazar S5 0716+714
• The Discovery of gamma-Ray Emission From The Blazar RGB J0710+591
• Intrinsic $\gamma$-ray luminosity, black hole mass, jet and accretion in Fermi blazars
• Constraints on minimum electron Lorentz factor and matter content of jets for a sample of bright Fermi blazars
• Compton rockets and the minimum power of relativistic jets
• Supermassive Black Hole Masses of AGNs with Elliptical Hosts
• The radio afterglow of Swift J1644+57 reveals a powerful jet with fast core and slow sheath
• Simultaneous X-ray and optical observations of S5 0716+714 after the outburst of March 2004
• The stellar contribution to the extra-galactic background light and absorption of high-energy gamma-rays
• Discovery of VHE gamma-rays from the blazar 1ES 1215+303 with the MAGIC Telescopes and simultaneous multi-wavelength observations
• Quasi-simultaneous two band optical variability of the blazars 1ES 1959+650 and 1ES 2344+514
• Synoptic studies of seventeen blazars detected in very high-energy gamma-rays
• The physical properties of Fermi BL Lac objects jets
• Emitting electrons spectra and acceleration processes in the jet of Mrk 421: from low state to giant flare state
• BL Lacertae: complex spectral variability and rapid synchrotron flare detected with BeppoSAX
• Discovery of Very High-Energy Gamma-Ray Radiation from the BL Lac 1ES 0806+524
• Simultaneous Multiwavelength observation of Mkn 501 in a low state in 2006
• Modeling the Multi-Wavelength Emission of Shell-Type Supernova Remnant RX J1713.7-3946
• The environment and distribution of emitting electrons as a function of source activity in Markarian 421
• TeV blazar gamma-ray emission produced by a cooling pile-up particle energy distribution function
• First-Epoch VLBA Imaging of Twenty New TeV Blazars
• Implications on the blazar sequence and inverse Compton models from Fermi bright blazars
• Spectral evolution in gamma-ray bursts: predictions of the internal shock model and comparison to observations
• Discovery of High-energy and Very High Energy Gamma-ray Emission from the Blazar RBS 0413
• Six Years of Fermi-LAT and Multi-wavelength Monitoring of the Broad-Line Radio Galaxy 3C 120: Jet Dissipation at Sub-parsec Scales from the Central Engine
• Multiwavelength Observations of the VHE Blazar 1ES 2344+514
• On the origin of the hard X-Ray excess of high-synchrotron-peaked BL Lac object Mrk 421
• Baryon Loading Efficiency and Particle Acceleration Efficiency of Relativistic Jets: Cases For Low Luminosity BL Lacs
• Multiwavelength observations of the AGN 1ES 0414+009 with VERITAS, Fermi-LAT, Swift-XRT, and MDM
• Discovery of VHE gamma-ray emission from the BL Lac object B3 2247+381 with the MAGIC telescopes
• Extreme Blazars Studied with Fermi-LAT and Suzaku: 1ES 0347-121 and Blazar Candidate HESS J1943+213
• Emitting electrons and source activity in Markarian 501
• Fermi Large Area Telescope Detection of Two Very-High-Energy (E>100 GeV) Gamma-ray Photons from the z = 1.1 Blazar PKS 0426-380
• Bethe-Heitler cascades as a plausible origin of hard spectra in distant TeV blazars
• The hadronic origin of hard gamma-ray spectrum from blazar 1ES 1101-232
• Stochastic Acceleration Model of Gamma-Ray Burst with Decaying Turbulence
• On the location of the gamma-ray emission region for 21 flat spectrum radio quasars with quasi-simultaneous observations
• Parameter constraints in a near-equipartition model with multi-frequency \emph{NuSTAR}, \emph{Swift} and \emph{Fermi-LAT} data from 3C 279
• The physical properties of \textit{Fermi} TeV BL Lac objects jets
• Estimating the redshift of PKS 0447-439 through its GeV-TeV emission
• A mixture evolution scenario of the AGN radio luminosity function
• Formation of very hard electron and gamma-ray spectra of flat spectrum radio quasar in fast-cooling regime
• What determines the observational differences of blazars?
• Constraining the redshifts of TeV BL Lac objects

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