Discovery of Non-thermal X-rays from the Shells of 30 Dor C with Chandra

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Title:		Discovery of Non-thermal X-rays from the Shells of 30 Dor C with Chandra
Authors:		Bamba, A.; Ueno, M.; Koyama, K.; Itoh, M.
Affiliation:		AA(Kyoto University), AB(Kyoto University), AC(Kyoto University), AD(Kobe University)
Publication:		The Proceedings of the IAU 8th Asian-Pacific Regional Meeting, Volume II, held at National Center of Sciences, Hitotsubashi Memorial Hall, Tokyo, July 2 - 5, 2002, Edited by S. Ikeuchi, J. Hearnshaw, and T. Hanawa, the Astronomical Society of Japan, 2002, p. 129-130
Publication Date:		00/2002
Origin:		AUTHOR
Bibliographic Code:		2002aprm.conf..129B

Abstract

We discovered non-thermal X-ray shells from 30 Dor C in the Large Magellanic Cloud (LMC) with Chandra. The radius of the shell is ˜3', ˜ 40 pc at the LMC distance of 50 kpc. From the shell-like morphology, 30 Dor C is probably an SNR. The spectra of the north and west shells show no line-like structure and are well fitted with a power-law model of photon index = 2.3--2.5, suggesting a non-thermal origin. Therefore, this is the first detection of non-thermal X-ray shells, or an SN 1006-like SNR from an extragalactic system. The X-ray shell is the largest among known SN 1006-like SNRs with the luminosity of ˜ 7× 10³⁵ ergs s^-1.

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