Spitzer observations of Centaurus A:: Infrared synchrotron emission from the northern lobe

被引：10

作者：

Brookes, M. H.

Lawrence, C. R.

Keene, J.

Stern, D.

Gorijan, V.

Werner, M.

Charmandaris, V.

机构：

[1] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA

[2] Univ Crete, Dept Phys, GR-71003 Iraklion, Greece

[3] Cornell Univ, Dept Astron, Ithaca, NY 14853 USA

来源：

ASTROPHYSICAL JOURNAL | 2006年 / 646卷 / 01期

关键词：

galaxies : active; galaxies : individual (Centaurus A); radiation mechanisms : nonthermal; radio continuum : galaxies;

D O I：

10.1086/506472

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present measurements obtained with the Spitzer Space Telescope in five bands from 3.6 to 24 mm 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 we conclude that further data are required to confirm this.

引用

页码：L41 / L44

页数：4

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