11 citations · 11 across the 9 of their papers we have counts for
9 papers · 1 filter
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 s…
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…
Microquasars to AGNs: An uniform Jet variability
Ajay Sharma, Raj Prince, Debanjan Bose
The long-term variability study over a range of black hole (BH) mass systems from the microquasars of stellar-mass black holes to the Active Galactic Nuclei (AGNs) of supermassive…
Detection of a Transient Quasi-periodic Oscillation in -Rays from Blazar PKS 2255-282
Ajay Sharma, Anuvab Banerjee, Avik Kumar Das +2
We conducted a comprehensive variability analysis of the blazar PKS 2255-282 using Fermi-LAT observations spanning over four years, from MJD 57783.5 to 59358.5. Our analysis reveal…
Detection of gamma-ray quasi-periodic oscillations in non-blazar AGN PKS 0521-36
Ajay Sharma, Raj Prince, Debanjan Bose
Quasi-periodic oscillations (QPOs) have been detected in many Fermi-detected bright blazars. In this letter, we report multiple QPOs detected in a non-blazar AGN PKS 0521-36 search…
Probing the disc-jet coupling in S4 0954+65, PKS 0903-57, & 4C +01.02 with -rays
Ajay Sharma, Sushanth Reddy Kamaram, Raj Prince +2
We present a comprehensive variability study on three blazars, S4 0954+65, PKS 0903-57, and 4C +01.02 covering a mass range of log(M/M) = 8--9, by using 15 years-lo…