Speaker
Description
"Radio galaxies are good objects for studying jet periphery emission. NGC 1275(3C 84) is the brightest radio galaxy in the gamma-ray band. Recently, the gamma-ray flux of NGC 1275 has increased gradually. The gamma-ray emission originated from the jet, however it is still under debate whether the optical/UV and X-ray emission is coming from the jet or accretion disk/corona.
In the present work, using the optical/UV and X-ray data from Swift UVOT and XRT we have performed PSF photometry in optical/UV to estimate the contribution of AGN and host galaxy in the total observed emission. From the long-term observations, the optical/UV and X-ray fluxes gradually increase as gamma-ray emission and reddening which mean that those components could be contributed to the jet emission. Additionally, the observed steep peak in the optical/UV SED may suggest an accretion disk origin of the emission. Similar observed correlation of optical and UV flux with the X-ray flux indicates that the X-rays can be attributed to the accretion disk and or corona."
