5 papers
Observation of Wobbling and Precessing Jet Signatures in Gamma-Ray Emission from Blazar PKS 1424-41
Ajay Sharma, Debanjan Bose
We report a clear observational evidence for jet precession and nutation manifested in the gamma-ray emissions of the blazar PKS 142441. An analysis of 16 yr of \emph{Ferm…
Broadband Spectral Modeling of Blazars: Constraining the Lorentz Factor and Gamma-Ray Emission Site
Ajay Sharma, Aishwarya Sarath, Sakshi Chaudhary +1
We present a comprehensive temporal and spectral analysis of a few blazars using multi-wavelength observations. Rapid flux variations are quantified via the doubling/halving timesc…
Exploring Year-timescale Gamma-ray Quasi-Periodic Oscillations in Blazars: Evidence for Supermassive Binary Black Holes Scenario
Ajay Sharma, Sakshi Chaudhary, Aishwarya Sarath +1
A comprehensive analysis of quasi-periodic oscillations (QPOs) in the gamma-ray emissions of blazars. Utilizing 15 years of Fermi-LAT observations of seven blazars in our sample, w…
Searching for quasi periodic oscillations in optical and -ray emissions black hole mass estimation of blazar ON 246
Ajay Sharma, Raj Prince, Debanjan Bose
We report the detection of a potential quasi-periodic signal with a period of years in the blazar ON 246, based on Fermi-LAT (-rays) and ASAS-SN (optical) observations…
Study of Multi-Wavelength Variability, Emission Mechanism and Quasi-Periodic Oscillation for Transition Blazar S5 1803+784
Javaid Tantry, Ajay Sharma, Zahir Shah +2
This work present the results of a multi-epoch observational study of the blazar S5\,1803+784, carried out from 2019 to 2023. The analysis is based on simultaneous data obtained fr…