Korean VLBI Network (KVN)
2015 Seminar List:
01/23/2015 01/30/2015 02/13/2015 02/27/2015 03/20/2015 04/10/2015 05/08/2015 05/15/2015 05/22/2015 05/29/2015 06/05/2015 06/12/2015 07/03/2015 07/24/2015 07/31/2015 08/07/2015 08/28/2015 09/04/2015 09/18/2015 09/25/2015 10/02/2015 10/30/2015 11/06/2015 11/27/2015
- Date
- 11/06/2015
- Speaker
- Dr. Motoki Kino (Radio Research Group)
- Venue
- KASI
- Title
- Fossil shell emission in NGC 1275
- Abstract
-
We study physical properties of a fossil shell associated with fading radio lobes in NGC~1275 (also known as 3C84). In our recent work of Ito et al., we have modeled the dynamical and spectral evolution of fossil shells which are identical to the forward shocks propagating in the external medium and found that the shell emission overwhelms that of the radio lobes soon after stopping the jet energy injection because fresh electrons are continuously supplied into the shell via the forward shock while the radio lobes rapidly fade out without jet energy injection.
By applying the model to NGC~1275, we find that, (i) shocked the thick torus can be detectable by VLBI several ten years after, and (ii) shocked ambient matter can be compatible to the sensitivity of the Cherenkov Telescope Array (CTA).
Korean VLBI Network (KVN)