250 citations · 1.3k across the 26 of their papers we have counts for
21 papers · 1 filter
The Parsec-Scale Jets of the TeV Blazars H 1426+428, 1ES 1959+650, and PKS 2155-304: 2001-2004
B. Glenn Piner, Niraj Pant, Philip G. Edwards
We present Very Long Baseline Array (VLBA) observations of the TeV blazars H 1426+428, 1ES 1959+650, and PKS 2155-304 obtained during the years 2001 through 2004. We observed H 142…
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…
The Parsec-Scale Structure and Jet Motions of the TeV Blazars 1ES 1959+650, PKS 2155-304, and 1ES 2344+514
B. Glenn Piner, Philip G. Edwards
As part of our study of the VLBI properties of TeV blazar jets, we present here a series of high-resolution 15 GHz Very Long Baseline Array (VLBA) images of the parsec-scale jets o…
Parsec Scale Properties of Markarian 501
M. Giroletti, G. Giovannini, L. Feretti +7
We present the results of a high angular resolution study of the BL Lac object Markarian 501 in the radio band. We consider data taken at 14 different epochs, ranging between 1.6 G…
The Sub-Luminal Parsec-scale Jet of Mkn 501
P. G. Edwards, B. G. Piner
We have combined Very Long Baseline Interferometry (VLBI) data from several programs in order to resolve differences in reported parsec-scale jet speeds for the TeV gamma-ray sourc…
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…
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…
The SNR W28 at TeV Energies
G. P. Rowell, T. Naito, S. A. Dazeley +24
The southern supernova remnant (SNR)W28 was observed in 1994 and 1995 by the CANGAROO 3.8m telescope in a search formulti-TeV gamma ray emission, using the Cerenkov imaging techniq…
Initial Performance of CANGAROO-II 7m telescope
Hidetoshi Kubo, S. A. Dazeley, P. G. Edwards +28
CANGAROO group constructed an imaging air Cherenkov telescope (CANGAROO-II) in March 1999 atWoomera, South Australia to observe celestial gamma-rays in hundreds GeV region. It has…
VSOP and Ground-based VLBI Imaging of the TeV Blazar Markarian 421 at Multiple Epochs
B. G. Piner, S. C. Unwin, A. E. Wehrle +3
We present thirty VLBI images of the TeV blazar Markarian 421 (1101+384) at fifteen epochs spanning the time range from 1994 to 1997, and at six different frequencies from 2.3 to 4…
TeV gamma-ray observations of three X-ray selected BL Lacs
M. D. Roberts, P. McGee, S. A. Dazeley +25
Despite extensive surveys of extragalactic TeV gamma-ray candidates only 3 sources have so far been detected. All three are northern hemisphere objects and all three are low-redshi…
TeV observations of Centaurus A
G. P. Rowell, S. A. Dazeley, P. G. Edwards +24
We have searched for TeV gamma-rays from Centaurus A and surrounding region out to +/- 1.0 deg using the CANGAROO 3.8m telescope. No evidence for TeV gamma-ray emission was observe…
TeV gamma-ray observations of southern BL Lacs with the CANGAROO 3.8m Imaging Telescope
M. D. Roberts, S. A. Dazeley, P. G. Edwards +32
Observational and theoretical results indicate that low-redshift BL Lacertae objects are the most likely extragalactic sources to be detectable at TeV energies. In this paper we pr…
Discovery of TeV Gamma Rays from SN1006: Further Evidence for the SNR Origin of Cosmic Rays
T. Tanimori, Y. Hayami, S. Kamei +36
This paper reports the first discovery of TeV gamma-ray emission from a supernova remnant made with the CANGAROO 3.8 m Telescope. TeV gamma rays were detected at the sky position a…
Detection of Gamma Rays of Up to 50 TeV From the Crab Nebula
T. Tanimori, K. Sakurazawa, S. A. Dazeley +28
Gamma rays with energies greater than 7 TeV from the Crab pulsar/nebula have been observed at large zenith angles, using the Imaging Atmospheric Technique from Woomera, South Austr…
Very High Energy Gamma Rays from the Vela Pulsar Direction
T. Yoshikoshi, T. Kifune, S. A. Dazeley +29
We have observed the Vela pulsar region at TeV energies using the 3.8 m imaging Cherenkov telescope near Woomera, South Australia between January 1993 and March 1995. Evidence of a…
Observation of Spectrum of TeV Gamma Rays up to 60 TeV from the Crab at the Large Zenith Angles
K. Sakurazawa, T. Tanimori, S. A. Dazeley +28
The CANGAROO experiment has observed gamma-ray above 7TeV from the Crab pulsar/nebula at large zenith angle in Woomera, South Australia. We report the CANGAROO data taken in 1992,…
TeV Gamma Ray Emission from Southern Sky Objects and CANGAROO Project
T. Kifune, S. A. Dazeley, P. G. Edwards +29
We report recent results of the CANGAROO Collaboration on very high energy gamma ray emission from pulsars, their nebulae, SNR and AGN in the southern sky. Observations are made in…
Multi-wavelength Observations of 3C 273 in 1993-1995
C. von Montigny
We present the results of the multi-wavelength campaigns on 3C 273 in 1993-1995. During the observations in late 1993 this quasar showed an increase of its flux for energies greate…
Very High Energy Gamma Rays from PSR1706-44
T. Kifune, CANGAROO Collaboration
We have obtained evidence of gamma-ray emission above 1 TeV from PSR1706-44, using a ground-based telescope of the atmospheric Čerenkov imaging type located near Woomera, South Aus…