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EDWARDS, PHILIP G.,PHILLIPS, CHRIS The Korean Astronomical Society 2015 天文學論叢 Vol.30 No.2
The Long Baseline Array is an array of radio telescopes using the technique of Very Long Baseline Interferometry to achieve milli-arcsecond-scale angular resolution. The core telescopes are located in Australia, with telescopes in New Zealand and South Africa also participating regularly. In this paper the capabilities of the Long Baseline Array are described, and examples of the science undertaken with the array are given.
THE AUSTRALIA TELESCOPE NATIONAL FACILITY
EDWARDS, PHILIP G. The Korean Astronomical Society 2015 天文學論叢 Vol.30 No.2
The Australia Telescope National Facility (ATNF) consists of the Parkes and Mopra radio telescopes, and the Australia Telescope Compact Array, with the first elements of the wide-field Australian Square Kilometer Array Pathfinder (ASKAP), currently being commissioned. The capabilities of these facilities are described.
Intraday Variability Feature and Milliarcsecond-Scale Structure in PKS 1622-297
Kiyoaki Wajima,Hayley E. Bignall,Hideyuki Kobayashi,Hisashi Hirabayashi,Kenta Fujisawa,Masato Tsuboi,Philip G. Edwards,Yasuhiro Murata 한국물리학회 2006 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.49 No.4
PKS 1622.297 is the most luminous gamma-ray emitting active galactic nucleus (AGN) ever detected and shows a gamma-ray intraday variability (IDV). We made a high-resolution space very long baseline interferometry (VLBI) observation of the source almost three years after the gammaray IDV. The source shows a compact core-jet structure, and all jet components have an apparent superluminal motion up to 12 h.1c. As an alternative probe of the sub-parsec scale structure, we also present the results from multi-epoch Australia Telescope Compact Array (ATCA) total flux monitoring, which indicate the presence of IDV. We examine the inner structure of the gamma-ray emitting AGN in light of these observations.