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Title:
The X-ray emission mechanism and jet kinematics at the hot spots of radio galaxy 3C 445
Authors:
Georganopoulos, Markos
Publication:
Chandra Proposal ID #08700664
Publication Date:
09/2006
Origin:
CXC
Keywords:
Chandra Proposal ID #08700664
Bibliographic Code:
2006cxo..prop.2214G

Abstract

The X-ray emission mechanism and kinematics of the hot spots of radio galaxies remain unknown. We propose Chandra observations of 3C 445, a radio galaxy with near-IR hot spot detections. We will address the hot spot X-ray emission issue with a very clean test: If the X-ray image of the southern hot spot exhibits the fine structure of the near-IR image, this will argue for a synchrotron mechanism, while a broad X-ray image, similar to the radio image will indicate an inverse Compton origin. We will also use our observations, together with existing data, to infer the hot spot velocity profile by modeling the multiwavelength spectra of both the approaching and receding hot spots. Note that we are the only group with tools for modeling the emission from decelerating relativistic flows.
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