Probing broadband spectral energy distribution and variability of Mrk 501 in the low flux state
Abstract
We conducted a multi-wavelength analysis of the blazar Mrk501, utilizing observations from AstroSat (SXT, LAXPC), Swift-UVOT, and Fermi-LAT during the period August 15, 2016 to March 27, 2022. The resulting multi-wavelength light curve revealed relatively low activity of the source across the electromagnetic spectrum. Notably, logparabola and broken power-law models provided a better fit to the joint X-ray spectra from AstroSat-SXT/LAXPC instruments compared to the power-law model. During the low activity state, the source showed the characteristic "harder when brighter" trend at the X-ray energies. To gain insights into underlying physical processes responsible for the broadband emission, we performed a detailed broadband spectral analysis using the convolved one-zone leptonic model with different forms of particle distributions such as logparabola (LP), broken power-law (BPL), power-law model with maximum energy (
- Publication:
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Journal of High Energy Astrophysics
- Pub Date:
- November 2024
- DOI:
- arXiv:
- arXiv:2411.00592
- Bibcode:
- 2024JHEAp..44..393T
- Keywords:
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- Galaxies: active;
- Galaxies: BL Lacertae objects: Mrk501;
- Jets;
- Radiation mechanisms: non-thermal - gamma-rays;
- Galaxies: jets;
- Active;
- Astrophysics - High Energy Astrophysical Phenomena
- E-Print:
- Accepted for publication in Journal of High Energy Astrophysics (JHEAP)