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

C. R. Lawrence; D. Stern; J. Keene; M. H. Brookes; M. Werner; V. Charmandaris; V. Gorijan

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

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arxiv astro-ph/0601413 v2 pith:GGRQPY3P submitted 2006-01-19 astro-ph

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

M. H. Brookes , C. R. Lawrence , J. Keene , D. Stern , V. Gorijan , M. Werner , V. Charmandaris This is my paper

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keywords emissionradiosynchrotronultravioletcentaurusinfraredlobenorthern

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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.

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

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