NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
VLBI Observations of Southern EGRET IdentificationsWe present high-resolution very long baseline interferometry images of three southern radio sources that the Energetic Gamma-Ray Experiment Telescope (EGRET), on board the Compton Gamma Ray Observatory, has identified as greater than 100 MeV gamma-ray sources. These are the first results in a continuing program of VLBI observations of southern EGRET identifications. For two of these sources, PKS 0208-512 (at 4.851 GHz) and PKS 0537-441 (at 4.851 and 8.418 GHz), the images represent first-epoch observations. For the remaining lower redshift object, PKS 0521-365, we present images from three epochs at 4.851 GHz and an image from one further epoch at 8.418 GHz, spanning approximately 1 yr. We discuss the need for further extensive VLBI observations of EGRET-identified radio sources.
Document ID
20000004222
Acquisition Source
Headquarters
Document Type
Reprint (Version printed in journal)
Authors
Tingay, S. J.
(Mount Stromlo and Siding Spring Observatory Canberra, Australia)
Edwards, P. G.
(Tokyo Univ. Sagamihara, Japan)
Costa, M. E.
(Tasmania Univ. Hobart, Australia)
Lovell, J. E. J.
(Tasmania Univ. Hobart, Australia)
McCulloch, P. M.
(Tasmania Univ. Hobart, Australia)
Jauncey, D. L.
(Australia Telescope National Facility Epping, Australia)
Reynolds, J. E.
(Australia Telescope National Facility Epping, Australia)
Tzioumis, A. K.
(Australia Telescope National Facility Epping, Australia)
Migenes, V.
(Australia Telescope National Facility Epping, Australia)
Gough, R.
(Australia Telescope National Facility Epping, Australia)
Date Acquired
August 19, 2013
Publication Date
June 10, 1996
Publication Information
Publication: Astrophysical Journal
Publisher: American Astronomical Society
Volume: 464
Subject Category
Astronomy
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available