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CANGAROO-III Search for Gamma Rays from Kepler's Supernova Remnant
R. Enomoto, Y. Higashi, T. Yoshida +1
Kepler's supernova, discovered in October 1604, produced a remnant that has been well studied observationally in the radio, infrared, optical, and X-ray bands, and theoretically. S…
Observation of Very High Energy Gamma Rays from HESS J1804-216 with CANGAROO-III Telescopes
Y. Higashi, H. Kubo, T. Yoshida +4
We observed the unidentified TeV gamma-ray source HESS J1804-216 with the CANGAROO-III atmospheric Cerenkov telescopes from May to July in 2006. We detected very high energy gamma…
CANGAROO-III Observations of the 2006 Outburst of PKS2155-304
III collaboration, Y. Sakamoto, K. Nishijima +3
We have used the CANGAROO-III imaging atmospheric Cherenkov telescopes to observe the high-frequency-peaked BL Lacertae (HBL) object PKS 2155-304 between 2006 July 28 (MJD 53944) a…
CANGAROO-III Search for Gamma Rays from SN 1987A and the Surrounding Field
R. Enomoto
Optical images of SN 1987A show a triple ring structure. The inner (dust) ring has recently increased in brightness and in the number of hot spots suggesting that the supernova sho…
PoGOLite - A High Sensitivity Balloon-Borne Soft Gamma-ray Polarimeter
Tuneyoshi Kamae, Viktor Andersson, Makoto Arimoto +36
We describe a new balloon-borne instrument (PoGOLite) capable of detecting 10% polarisation from 200mCrab point-like sources between 25 and 80keV in one 6 hour flight. Polarisation…
CANGAROO-III Search for Gamma Rays from Centaurus A and the Centauri Region
S. Kabuki, R. Enomoto, CANGAROO-III collaboration
We have observed the giant radio galaxy Centaurus A and the globular cluster Centauri in the TeV energy region using the CANGAROO-III stereoscopic system. The system has been i…
Erratum: Detection of diffuse TeV gamma-ray emission from the nearby starburst galaxy NGC 253
C. Itoh, R. Enomoto, S. Yanagita +1
The CANGAROO-II telescope observed sub-TeV gamma-ray emission from the nearby starburst galaxy NGC 253. The emission region was extended with a radial size of 0.3-0.6 degree. On th…
CANGAROO-III Observations of the supernova remnant RX J0852.04622
R. Enomoto, S. Watanabe, T. Tanimori et al
Sub-TeV gamma-ray emission from the North-West rim of the supernova remnant RX J0852.04622 was detected with the CANGAROO-II telescope and recently confirmed by the H.E.S.S. gro…
A Search for sub-TeV Gamma-rays from the Vela Pulsar Region with CANGAROO-III
R. Enomoto, K. Tsuchiya, Y. Adachi +2
We made stereoscopic observations of the Vela Pulsar region with two of the 10 m diameter CANGAROO-III imaging atmospheric Cherenkov telescopes in January and February, 2004, in a…
Detection of Gamma-rays around 1TeV from RX J0852.0-4622 by CANGAROO-II
H. Katagiri, R. Enomoto, L. T. Ksenofontov +1
We have detected gamma-ray emission at the 6sigma level at energies greater than 500GeV from the supernova remnant RX J0852.0-4622 (G266.2-1.2) using the CANGAROO-II Imaging Atmosp…
Detection of Sub-TeV Gamma-Rays from the Galactic Center Direction by CANGAROO-II
K. Tsuchiya, R. Enomoto, L. T. Ksenofontov +3
We have detected sub-TeV gamma-ray emission from the direction of the Galactic Center (GC) using the CANGAROO-II Imaging Atmospheric Cherenkov Telescope (IACT). We detected a stati…
Evidence of TeV gamma-ray emission from the nearby starburst galaxy NGC 253
C. Itoh, R. Enomoto, S. Yanagita +4
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 fr…
Detection of diffuse TeV gamma-ray emission from the nearby starburst galaxy NGC 253
C. Itoh, R. Enomoto, S. Yanagita +2
We report the TeV gamma-ray observations of the nearby normal spiral galaxy NGC 253. At a distance of 2.5 Mpc, NGC 253 is one of the nearest starburst galaxies. This relative…
Development of an atmospheric Cherenkov imaging camera for the CANGAROO-III experiment
S. Kabuki, K. Tsuchiya, K. Okumura +10
A Cherenkov imaging camera for the CANGAROO-III experiment has been developed for observations of gamma-ray induced air-showers at energies from 10 to 10 eV. The came…
Observation of gamma-rays greater than 10 TeV from Markarian 421
K. Okumura, A. Asahara, G. V. Bicknell +42
We have observed Markarian 421 in January and March 2001 with the CANGAROO-II imaging Cherenkov telescope during an extraordinarily high state at TeV energies. From 14 hours observ…
The acceleration of cosmic-ray protons in the supernova remnant RX J1713.7-3946
II Collaboration, R. Enomoto
Protons with energies up to 10^15 eV are the main component[1] of cosmic rays, but evidence for the specific locations where they could have been accelerated to these energies has…
Study of the TeV gamma-ray spectrum of SN 1006 around the NE Rim
T. Tanimori, T. Naito, T. Yoshida +1
The differential spectrum of TeV gamma rays between 1.5 TeV and 20 TeV from the north-east rim of SN1006 was obtained from the data observed in 1996 and 1997 using the 3.8m CANGARO…
Design Study of CANGAROO-III, Stereoscopic Imaging Atmospheric Cherenkov Telescopes for sub-TeV Gamma-ray
R. Enomoto, S. Hara, CANGAROO collaboration
CANGAROO-III is an Imaging Atmospheric Cherenkov Telescope (IACT) array of four 10 m telescopes for very high energy (sub-TeV) gamma-ray astronomy. A design study of the CANGAROO-I…
Search for gamma-rays above 10 TeV from Markarian 421 in a high state with the CANGAROO-II telescope
K. Okumura, R. Enomoto, A. Asahara +42
A preliminary result from Markarian 421 observations in the energy region above 10 TeV with the CANGAROO-II 10 m telescope is presented. In January 2001, the HEGRA group reported t…
Detection of Pulsed X-ray Emission from The Fastest Millisecond Pulsar PSR B1937+21 with ASCA
M. Takahashi
We have detected pulsed X-ray emission from the fastest millisecond pulsar known, PSR B1937+21 (P=1.558 msec), with ASCA. The pulsar is detected as a point source above …
ASCA Detection of Pulsed X-ray Emission from PSR J0631+1036
Ken'ichi Torii, Y. Saito, F. Nagase +9
ASCA's long look at the 288 millisecond radio pulsar, PSR J0631+1036, reveals coherent X-ray pulsation from this source for the first time. The source was first detected in the ser…
Status of the CANGAROO-III Project
Masaki Mori
The CANGAROO-III project, a system of four 10 m telecopes dedicated for gamma-ray astrophysics, has started in 1999 and is expected to complete in 2004 in Woomera, South Australia.…
Observations of the supernova remnant W28 at TeV energies
G. P. Rowell, T. Naito, S. A. Dazeley +24
The atmospheric Cerenkov imaging technique has been used to search for point-like and diffuse TeV gamma-ray emission from the southern supernova remnant, W28, and surrounding regio…
Very High-Energy Gamma-Ray Observations of PSR B1509-58 with the CANGAROO 3.8m Telescope
T. Sako, Y. Matsubara, Y. Muraki +31
The gamma-ray pulsar PSR B1509-58 and its surrounding nebulae have been observed with the CANGAROO 3.8m imaging atmospheric Cherenkov telescope. The observations were performed fro…