2006ApJ...638..397E

Query : 2006ApJ...638..397E

2006ApJ...638..397E - Astrophys. J., 638, 397-408 (2006/February-2)

A search for Sub-TeV gamma rays from the Vela pulsar region with CANGAROO-III.

ENOMOTO R., TSUCHIYA K., ADACHI Y., KABUKI S., EDWARDS P.G., ASAHARA A., BICKNELL G.V., CLAY R.W., DOI Y., GUNJI S., HARA S., HARA T., HATTORI T., HAYASHI S., HIGASHI Y., INOUE R., ITOH C., KAJINO F., KATAGIRI H., KAWACHI A., KAWASAKI S., KIFUNE T., KIUCHI R., KONNO K., KSENOFONTOV L.T., KUBO H., KUSHIDA J., MATSUBARA Y., MIZUMOTO Y., MORI M., MURAISHI H., MURAKI Y., NAITO T., NAKAMORI T., NISHIDA D., NISHIJIMA K., OHISHI M., PATTERSON J.R., PROTHEROE R.J., SAKAMOTO Y., SATO M., SUZUKI S., SUZUKI T., SWABY D.L., TANIMORI T., TANIMURA H., THORNTON G.J., WATANABE S., YAMAOKA T., YAMAZAKI M., YANAGITA S., YOSHIDA T., YOSHIKOSHI T., YUASA M. and YUKAWA Y.

Abstract (from CDS):

We made stereoscopic observations of the Vela pulsar region with two of the 10 m diameter CANGAROO-III imaging atmospheric Cerenkov telescopes in 2004 January and February in a search for sub-TeV gamma rays from the pulsar and surrounding regions. We describe the observations, provide a detailed account of the calibration methods, and introduce the improved and bias-free analysis techniques employed for CANGAROO-III data. No evidence of gamma-ray emission is found from either the pulsar position or the previously reported position offset by 0°.13, and the resulting upper limits are a factor of 5 less than the previously reported flux from observations with the CANGAROO-I 3.8 m telescope. Following the recent report by the H.E.S.S. group of TeV gamma-ray emission from the pulsar wind nebula, which is ∼0°.5 south of the pulsar position, we examined this region and found supporting evidence for emission extended over ∼0°.6.

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Journal keyword(s): Gamma Rays: Observations - Methods: Data Analysis - pulsars: individual (Vela)

Simbad objects: 4

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Number of rows : 4
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 M 1 SNR 05 34 31.8 +22 01 03           ~ 6516 1
2 V* CM Tau Psr 05 34 31.9474694616 +22 00 52.153698024           ~ 5476 0
3 NAME Vela SNR 08 34.0 -45 50           ~ 1331 2
4 NAME Vela Pulsar Psr 08 35 20.65525 -45 10 35.1545     15.10     ~ 2446 1

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