Astrometry of 25 Southern Hemisphere Radio Sources from a VLBI Short-Baseline Survey
| dc.contributor.author | Fey, Alan L. | |
| dc.contributor.author | Ojha, Roopesh | |
| dc.contributor.author | Reynolds, John E. | |
| dc.contributor.author | Ellingsen, Simon P. | |
| dc.contributor.author | McCulloch, Peter M. | |
| dc.contributor.author | Jauncey, David L. | |
| dc.contributor.author | Johnston, Kenneth J. | |
| dc.date.accessioned | 2020-03-30T13:19:15Z | |
| dc.date.available | 2020-03-30T13:19:15Z | |
| dc.date.issued | 2004-11 | |
| dc.description.abstract | Milliarcsecond-accurate radio positions for 25 southern hemisphere extragalactic sources are reported. These positions are derived from Mark III Very Long Baseline Interferometry observations made between 2003 September and 2004 May on the intra-Australia baseline connecting Hobart, Tasmania and Parkes, New South Wales. The results presented here represent an ongoing program intended to increase the number of phase-reference sources with accurate positions in the southern hemisphere for use in astrophysical observations. The positions for all but 1 of the 25 sources are south of δ = -45° and have average formal uncertainties of 3 mas in α cos δ and 2 mas in δ. As the reported positions are in the frame of the International Celestial Reference Frame (ICRF), the results reported here can also be used to increase the sky density of southern hemisphere ICRF sources, although with reduced accuracy. | en_US |
| dc.description.sponsorship | We would like to thank the staffs of the participating observatories for the time and effort required to make these observations. Additionally, we would like to thank the staff of the Washington Correlator for their hard work and dedication. This research has made use of the NASA/ IPAC Extragalactic Database, which is operated by the Jet Propulsion Laboratory, California Institute of Technology, under contract with the National Aeronautics and Space Administration. | en_US |
| dc.description.uri | https://iopscience.iop.org/article/10.1086/424941 | en_US |
| dc.format.extent | 6 pages | en_US |
| dc.genre | journal articles | en_US |
| dc.identifier | doi:10.13016/m2b0fj-p1nt | |
| dc.identifier.citation | Alan L. Fey, Roopesh Ojha, John E. Reynolds, Simon P. Ellingsen, Peter M. McCulloch, David L. Jauncey, and Kenneth J. Johnston, Volume #128, 2004, Astrometry of 25 Southern Hemisphere Radio Sources from a VLBI Short-Baseline Survey,https://iopscience.iop.org/article/10.1086/424941 | en_US |
| dc.identifier.uri | http://hdl.handle.net/11603/17758 | |
| dc.identifier.uri | http://simbad.u-strasbg.fr/simbad/sim-ref?querymethod=bib&simbo=on&submit=submit+bibcode&bibcode=2004AJ....128.2593F | |
| dc.identifier.uri | https://ned.ipac.caltech.edu/cgi-bin/objsearch?search_type=Search&refcode=2004AJ....128.2593F | |
| dc.language.iso | en_US | en_US |
| dc.publisher | IOP | en_US |
| dc.relation.isAvailableAt | The University of Maryland, Baltimore County (UMBC) | |
| dc.relation.ispartof | UMBC Physics Department Collection | |
| dc.relation.ispartof | UMBC Center for Space Sciences and Technology (CSST) / Center for Research and Exploration in Space Sciences & Technology II (CRSST II) | |
| dc.rights | This item is likely protected under Title 17 of the U.S. Copyright Law. Unless on a Creative Commons license, for uses protected by Copyright Law, contact the copyright holder or the author. | |
| dc.rights | Public Domain Mark 1.0 | * |
| dc.rights | This work was written as part of one of the author's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law | |
| dc.rights.uri | http://creativecommons.org/publicdomain/mark/1.0/ | * |
| dc.title | Astrometry of 25 Southern Hemisphere Radio Sources from a VLBI Short-Baseline Survey | en_US |
| dc.type | Text | en_US |