Spitzer Observations of Centaurus A: Infrared Synchrotron Emission from the Northern Lobe

Details Spitzer Observations of Centaurus A: Infrared Synchrotron Emission from the Northern Lobe Spitzer Observations of Centaurus A: Infrared Synchrotron Emission from the Northern Lobe

2006-01-19

arxiv.org/abs/astro-ph/0601413v2

Astrophys.J.646:L41-L44,2006

Astronomy and Astrophysics

Astrophysics

4 pages, accepted by ApJL

Scientific paper

10.1086/506472

We present measurements obtained with the Spitzer Space Telescope in five bands from 3.6-24 microns of the northern inner radio lobe of Centaurus A, the nearest powerful radio galaxy. We show that this emission is synchrotron in origin. Comparison with ultraviolet observations from GALEX shows that diffuse ultraviolet emission exists in a smaller region than the infrared but also coincides with the radio jet. We discuss the possibility, that synchrotron emission is responsible for the ultraviolet emission and conclude that further data are required to confirm this.

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