activity
20182025
most citedEstablishing the Spectral Turnover of Blazar PKS 2155-304 as an Outcome of Radiative Losses

14 citations · 26 across the 5 of their papers we have counts for

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5 papers · 1 filter

astro-ph.HE2025★ 1 cited

A fast powerful X-ray transient from possible tidal disruption of a white dwarf

Dongyue Li, Wenda Zhang, Jun Yang +97

Stars captured by black holes (BHs) can be torn apart by strong tidal forces, producing electromagnetic flares. To date, more than 100 tidal disruption events (TDEs) have been obse…

astro-ph.HE2025

Multi-wavelength analysis of FSRQ B2 1348+30B: Constraints on the jet power

Sajad Ahanger, Sunder Sahayanathan, Sitha K. Jagan +2

We present 14.5-year multi-wavelength analysis of flat-spectrum radio quasar B2 1348+30B using Swift-UVOT, Swift-XRT, and Fermi-LAT observations. In the gamma-ray band, the 3 day b…

astro-ph.HE2022★ 7 cited

Do radiative losses determine the characteristic emission of the blazar Mkn 421?

C. Baheeja, S. Sahayanathan, Frank M. Rieger +2

The radiative loss interpretation for the broken power-law spectra of blazars is often questioned since the difference between the indices does not support this inference. Using th…

astro-ph.HE2021★ 4 cited

Convex X-ray Spectra of PKS 2155-304 and Constraints on the Minimum Electron Energy

Sitha K. Jagan, S. Sahayanathan, Frank M. Rieger +1

The convex (concave upward) high-energy X-ray spectra of the blazar PKS\,2155-304, observed by \emph{XMM-Newton}, is interpreted as the signature of sub-dominant inverse Compton em…

astro-ph.HE2018★ 14 cited

Establishing the Spectral Turnover of Blazar PKS 2155-304 as an Outcome of Radiative Losses

Sitha K. Jagan, S. Sahayanathan, R. Misra +2

The broad band optical/UV and X-ray spectra of blazars have been often modeled as synchrotron component arising from a broken power-law distribution of electrons. A broken power-la…