@inproceedings{b92231945350418fb4a107cd32d6d5a5,
title = "Improvement and extension of the International Celestial Reference Frame in the Southern Hemisphere",
abstract = "The U.S. Naval Observatory (USNO) and the Australia Telescope National Facility (ATNF) are collaborating in a continuing VLBI research program in Southern Hemisphere ICRF source imaging and astrometry using USNO, ATNF and ATNF-accessible facilities. These observations are aimed specifically toward improvement of the International Celestial Reference Frame (ICRF) in the Southern Hemisphere. We present the contributions of this program to the densification of the ICRF in the Southern Hemisphere and the imaging of all southern hemisphere ICRF sources for calculation of a {"}structure index{"}. The impact of both these contributions to the improvement of the ICRF in the Southern Hemisphere will be discussed.",
keywords = "Astrometry, Catalogs, Interferometry, International celestial reference frame (ICRF), Quasars, Reference systems",
author = "R. Ojha and Fey, \{A. L.\} and P. Charlot and Johnston, \{K. J.\} and Jauncey, \{D. L.\} and Reynolds, \{J. E.\} and Tzioumis, \{A. K.\} and Lovell, \{J. E.J.\} and Quick, \{J. F.H.\} and Nicolson, \{G. D.\} and Ellingsen, \{S. P.\} and McCulloch, \{P. M.\} and Y. Koyama",
year = "2007",
doi = "10.1007/978-3-540-49350-1\_89",
language = "English",
isbn = "9783540493495",
series = "International Association of Geodesy Symposia",
pages = "616--623",
booktitle = "Dynamic Planet",
note = "IAG Symposium on Dynamic Planet: Monitoring and Understanding a Dynamic Planet with Geodetic and Oceanographic Tools ; Conference date: 22-08-2005 Through 26-08-2005",
}