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International low-frequency very-long-baseline interferometry network project milestones

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The low-frequency very-long-baseline interferometry network (LFVN) project was started in 1996, having the purpose to arrange the international very-long-baseline interferometry (VLBI) cooperation with participation of former Soviet Union radio telescopes. Currently there are three directions of LFVN development: a Mk 2 subsystem at 92 cm wavelength for solar research, an international S2 ad hoc array at 18 cm for active Galactic nuclei and OH-maser survey, and VLBI radar at 6 cm for investigation of Solar System bodies. 14 VLBI experiments were carried out using various combinations of radio telescopes in Canada, China, England, India, Italy, Japan, Latvia, Poland, Russia, South Africa, Ukraine and USA. The five sessions were processed by the Jet Propulsion Laboratory (California Institute of Technology) Block II and Dominion Radio Astrophysics Laboratory Penticton correlators. The Russian Mk 2 correlator in Nizhny Novgorod is under development. The paper describes the main project milestones, results obtained so far and further plans.

Keywords: Correlator; Equipment; Quasar image; Radar echo; Radio telescope; Very-long-baseline interferometry observation

Document Type: Research Article


Affiliations: 1: Radiophysical Research Institute B. Pecherskaya 25 North Novgorod Russia 603950 2: Jet Propulsion Laboratory 4800 Oak Grove Drive Pasadena California USA 91109 3: Eidgenössiche Technische Hochschule Zentrum Institute of Astronomy SEC F7 Zurich Switzerland CH-8092 4: Consiglio Nazionale delle Ricerche Istituto di Radioastronomia Via P. Gobetti 101 Bologna Italy 40129 5: Institute of Radio Astronomy Chervonopraporna 4 Kharkiv Ukraine 310002 6: National Centre for Radioastrophysics Postbag 3 Ganeshkind Pune India 411007 7: Shanghai Astronomical Observatory Nandan Road 80 Shanghai PR China 200030 8: Dominion Radio Astrophysics Observatory PO Box 248 Penticton British Columbia Canada V2A 6K3 9: Urumqi Astronomical Observatory S. Beijing Road 40 Urumqi PR China 830011 10: NCU Centre for Astronomy Gagarina 11 Torun Poland 87-100 11: Hartebeesthoek Radio Astronomy Observatory PO Box 443 Krugersdorp South Africa 1740 12: University of Latvia Astronomical Institute Raina Boulevard 19 Riga Latvia 1586 13: Communications Research Laboratory Hirai 893-1 Kashima Ibaraki Japan 314-0012 14: MPEI Special Research Bureau Krasnokazarmennaya 14 Moscow Russia 111250 15: National Astronomical Observatories A20 Datun Road Beijing PR China 100012 16: Ventspils International Radio Astronomy Center Akademijas Laukums 1 Riga Latvia 1050

Publication date: August 1, 2003

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