Estimating the Jet Power from Broadband SED modeling of Mkn 501 for different particle distributions

Abstract

We consider the broadband spectral energy distribution of the high energy peaked (HBL) blazar Mkn 501 using $\text{Swift}$-XRT/UVOT, NuSTAR and $\text{Fermi}$-LAT observations taken between 2013 and 2022. The spectra were fitted with a one-zone leptonic model using synchrotron and synchrotron self-Compton emission from different particle energy distributions such as a broken power-law, log-parabola, as well as distributions expected when the diffusion or the acceleration time scale are energy dependent. The jet power estimated for a broken power-law distribution was $\sim 10^{47}(10^{44})$ erg s${}^{-1}$ for a minimum electron energy ${\gamma }_{\text{min}}\sim 10(10^3)$. However, for electron energy distributions with intrinsic curvature (such as the log-parabola form), the jet power is significantly lower at a few times $10^{42}$ erg s${}^{-1}$ which is a few percent of the Eddington luminosity of a $10^7$ M${}_{\odot }$ black hole, suggesting that the jet may be powered by accretion processes. We discuss the implications of these results.

Accepted for publication in MNRAS

References in corpus (8)

• The power of blazar jets
• The power of relativistic jets is larger than the luminosity of their accretion disks
• Hadronic models of blazars require a change of the accretion paradigm
• General Physical Properties of CGRaBS Blazars
• On the spectral curvature of VHE blazar 1ES\,1011+496: Effect of spatial particle diffusion
• A two-zone photohadronic scenario for EHBL-like behavior of Mrk 501
• Understanding the X-ray spectral curvature of Mkn 421 using broadband AstroSat observations
• Correlations between X-ray spectral parameters of Mkn 421 using long-term Swift-XRT data