2008ApJ...677..297N

Query : 2008ApJ...677..297N

2008ApJ...677..297N - Astrophys. J., 677, 297-305 (2008/April-2)

Observation of an extended very high energy gamma-ray emission from MSH 15-52 with CANGAROO-III.

NAKAMORI T., KUBO H., YOSHIDA T., TANIMORI T., ENOMOTO R., BICKNELL G.V., CLAY R.W., EDWARDS P.G., GUNJI S., HARA S., HARA T., HATTORI T., HAYASHI S., HIGASHI Y., HIRAI Y., INOUE K., KABUKI S., KAJINO F., KATAGIRI H., KAWACHI A., KIFUNE T., KIUCHI R., KUSHIDA J., MATSUBARA Y., MIZUKAMI T., MIZUMOTO Y., MIZUNIWA R., MORI M., MURAISHI H., MURAKI Y., NAITO T., NAKANO S., NISHIDA D., NISHIJIMA K., OHISHI M., SAKAMOTO Y., SEKI A., STAMATESCU V., SUZUKI T., SWABY D.L., THORNTON G., TOKANAI F., TSUCHIYA K., WATANABE S., YAMADA Y., YAMAZAKI E., YANAGITA S., YOSHIKOSHI T. and YUKAWA Y.

Abstract (from CDS):

We have observed the supernova remnant MSH 15-52 (G320.4-1.2), which contains the gamma-ray pulsar PSR B1509-58, using the CANGAROO-III imaging atmospheric Cerenkov telescope array from 2006 April to June. We detected gamma rays above 810 GeV at the 7 σ level during a total effective exposure of 48.4 hr. We obtained a differential gamma-ray flux at 2.35 TeV of (7.9±1.5stat±1.7sys)x10–13/cm2/s/TeV, with a photon index of 2.21±0.39stat±0.40sys, which is compatible with that of the H.E.S.S. observation in 2004. The morphology shows extended emission compared to our point spread function. We consider the plausible origin of the high-energy emission based on a multiwavelength spectral analysis and energetics arguments.

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Journal keyword(s): Gamma Rays: Observations - ISM: individual (MSH 15-52) - ISM: individual (G320.4-1.2) - Stars: Pulsars: Individual: Alphanumeric: PSR B1509-58 - ISM: Supernova Remnants

Simbad objects: 11

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Number of rows : 11
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 X Psr 08 33 08.880 -45 11 24.36           ~ 302 1
4 NAME Vela Pulsar Psr 08 35 20.65525 -45 10 35.1545     15.10     ~ 2446 1
5 NAME NGC 4449 SNR SNR 12 28 10.8 +44 06 41           ~ 40 0
6 3A 1510-590 Psr 15 13 17.000 -59 04 54.00           ~ 434 3
7 SNR G320.4-01.0 SNR 15 13 35 -59 00.2           ~ 87 0
8 PSR B1509-58 Psr 15 13 47.6 -59 07 54     13.06     ~ 879 1
9 IRAS 15099-5856 IR 15 13 54.5 -59 07 39           ~ 9 0
10 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 16269 0
11 SNR G021.5-00.9 SNR 18 33 33.612 -10 34 07.69           ~ 490 1

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