The physical properties of \textit{Fermi} TeV BL Lac objects jets

Abstract

We investigate the physical properties of \textit{Fermi} TeV BL Lac objects jets by modeling the quasi-simultaneous spectral energy distribution of 29 \textit{Fermi} TeV BL Lacs in the frame of a one-zone leptonic synchrotron self-Compton model. Our main results are the following: (i) There is a negative correlation between $B$ and $\delta$ in our sample, which suggests that $B$ and $\delta$ are dependent on each other mainly in Thomson regime. (ii) There are negative correlations between ${\nu }_{\text{sy}}$ and $r$, the ${\nu }_{\text{IC}}$ and $r$, which is a signature of the energy-dependence statistical acceleration or the stochastic acceleration. There is a significant correlation between $r$ and $s$, which suggests that the curvature of the electron energy distribution is attributed to the energy-dependence statistical acceleration mechanism. (iii) By assuming one proton per relativistic electron, we estimate the jet power and radiative power. A size relation $P_{\text{e}}\sim P_{\text{p}}>P_{\text{r}}\gtrsim P_{\text{B}}$ is found in our sample. The $P_{\text{e}}>P_{\text{B}}$ suggests that the jets are particle dominated, and the $P_{\text{e}}\sim P_{\text{p}}$ means that the mean energy of relativistic electrons approaches $m_{\text{p}}/m_{\text{e}}$. There are not significant correlations between $P_{\text{jet}}$ and black hole mass in high or low state with a sub-sample of 18 sources, which suggests that the jet power weakly depends on the black hole mass. (iv) There is a correlation between the changes in the flux density at 1 TeV and the changes in the ${\gamma }_{\text{peak}}$, which suggests the change/evolution of electron energy distribution may be mainly responsible for the flux variation.

15 pages, 14 figures, 4 tables. Accepted for publication in the Monthly Notices of the Royal Astronomical Society

References in corpus (18)

• The power of blazar jets
• Bright AGN Source List from the First Three Months of the Fermi Large Area Telescope All-Sky Survey
• Modeling the Emission Processes in Blazars
• The blazar sequence: a new perspective
• Gamma-Ray Studies of Blazars: Synchro-Compton Analysis of Flat Spectrum Radio Quasars
• Simultaneous observations of PKS 2155-304 with H.E.S.S., Fermi, RXTE and ATOM: spectral energy distributions and variability in a low state
• Discovery of very high energy gamma-ray emission from the low-frequency peaked BL Lacertae object BL Lacertae
• Discovery of Very High Energy gamma-rays from 1ES 1011+496 at z=0.212
• Signatures of synchrotron emission and of electron acceleration in the X-ray spectra of Mrk 421
• Simultaneous multiwavelength observations of the blazar 1ES1959+650 at a low TeV flux
• Discovery of VHE gamma-rays from the blazar 1ES 1215+303 with the MAGIC Telescopes and simultaneous multi-wavelength observations
• Discovery of VHE gamma-rays from the high-frequency-peaked BL Lac object RGB J0152+017
• Optical spectroscopic observations of blazars and gamma-ray blazar candidates in the Sloan Digital Sky Survey Data Release Nine
• Rapid TeV Flaring in Markarian 501
• The new sample of giant radio sources III. Statistical trends and correlations
• First broadband characterization and redshift determination of the VHE blazar MAGIC J2001+439
• A Hard X-Ray View of Two Distant VHE Blazars: 1ES 1101-232 and 1ES 1553+113
• Search for TeV $\gamma$--ray emission from blazar 1ES1218+304 with TACTIC telescope during March-April 2013

Cited by in corpus (7)

• The physical properties of $Fermi$-4LAC flat spectrum radio quasars
• On the origin of the hard X-Ray excess of high-synchrotron-peaked BL Lac object Mrk 421
• Hadronuclear interactions in the jet of low TeV luminosity AGN: Implications for the low-state very-high-energy gamma-ray emission
• The Hard X-ray emission of the blazar PKS 2155--304
• Extremely High energy peaked BL Lac nature of the TeV blazar Mrk 501
• On the Origin and Evolution of Curvature of the Spectral Energy Distribution of Fermi Bright Blazars
• Using the Markov Chain Monte Carlo method to study the physical properties GeV-TeV BL Lac objects