Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/18072
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Type: Journal article
Title: Evidence of TeV gamma-ray emission from the nearby starburst galaxy NGC 253
Author: Itoh, C.
Enomoto, R.
Yanagita, S.
Yoshida, T.
Tanimori, T.
Okumura, K.
Asahara, A.
Bicknell, G.
Clay, R.
Edwards, P.
Gunji, S.
Hara, S.
Hara, T.
Hattori, T.
Hayashi, S.
Hayashi, S.
Kabuki, S.
Kajino, F.
Katagiri, H.
Kawachi, A.
et al.
Citation: Astronomy and Astrophysics, 2003; 402(2):443-455
Publisher: Springer-Verlag
Issue Date: 2003
ISSN: 0004-6361
1432-0746
Abstract: TeV gamma-rays were recently detected from the nearby normal spiral galaxy NGC 253 (Itoh et al., 2002). Observations to detect the Cherenkov light images initiated by gamma-rays from the direction of NGC 253 were carried out in 2000 and 2001 over a total period of $\sim$150 hours. The orientation of images in gamma-ray--like events is not consistent with emission from a point source, and the emission region corresponds to a size greater than 10 kpc in radius. Here, detailed descriptions of the analysis procedures and techniques are given.
Rights: Copyright © 2003. The European Southern Observatory. All rights reserved. Printed in U.S.A. Submitted to Cornell University’s online archive www.arXiv.org in 2003 by Ryoji Enomoto. Post-print can be sourced from www.arxiv.org.
RMID: 0020030259
DOI: 10.1051/0004-6361:20030247
Published version: http://arxiv.org/abs/astro-ph/0304295
Appears in Collections:Physics publications

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