The modern radio astronomy network in Ukraine: UTR-2, URAN and GURT

A. Konovalenko 1 L. Sodin V. Zakharenko 1 P. Zarka 2 O. Ulyanov 1 M. Sidorchuk 1 S. Stepkin 1 P. Tokarsky 1 V. Melnik 1 N. Kalinichenko 1 A. Stanislavsky 1 V. Koliadin 1 V. Shepelev 1 V. Dorovskyy 1 V. Ryabov 3 A. Koval 1 I. Bubnov 1 S. Yerin 1 A. Gridin 1 V. Kulishenko 1 A. Reznichenko 1 V. Bortsov V. Lisachenko A. Reznik 1 G. Kvasov 1 D. Mukha G. Litvinenko 1 A. Khristenko 1 V. Shevchenko A. Shevchenko 4 A. Belov 5 E. Rudavin I. Vasylieva 1 A. Miroshnichenko N. Vasilenko 6 M. Olyak K. Mylostna A. Skoryk A. Shevtsova M. Plakhov I. Kravtsov Y. Volvach O. Lytvinenko N. Shevchuk I. Zhouk V. Bovkun A. Antonov 7 D. Vavriv 1 V. Vinogradov 1 R. Kozhin A. Kravtsov E. Bulakh A. Kuzin 8 A. Vasilyev A. Brazhenko 9 R. Vashchishin O. Pylaev V. Koshovyy 9 A. Lozinsky O. Ivantyshin H. O. Rucker 10 M. Panchenko 10 G. Fischer 11 A. Lecacheux 2 L. Denis 12 A. Coffre 13 Jean-Mathias Grieβmeier 14 Michel Tagger 14 J. Girard Didier Charrier 15 C. Briand G. Mann 16
1 IRA - Institute of Radio Astronomy of NASU [Kharkiv]
2 LESIA - Laboratoire d'études spatiales et d'instrumentation en astrophysique
3 Future University-Hakodate
4 MPI-CBG - Max Planck Institute of Molecular Cell Biology and Genetics
5 Lobachevsky State University
6 LBPA - Laboratoire de Biologie et de Pharmacologie Appliquée
7 CRLAO - Centre de Recherches Linguistiques sur l'Asie Orientale
8 Physical and Computing Mechanics Department
TSU - Physical and Computing Mechanics Department
9 MAO - Main Astronomical Observatory of NAS of Ukraine
10 IWF - Space Research Institute of Austrian Academy of Sciences
11 IMP - Ingénierie des Matériaux Polymères
12 LHC - Laboratoire Hubert Curien [Saint Etienne]
13 USN - Unité Scientifique de la Station de Nançay
14 LPC2E - Laboratoire de Physique et Chimie de l'Environnement et de l'Espace
15 SUBATECH - Laboratoire SUBATECH Nantes
16 University of Leeds
Abstract : The current status of the large decameter radio telescope UTR-2 (Ukrainian T-shaped Radio telescope) together with its VLBI system called URAN is described in detail. By modernization of these instruments through implementation of novel versatile analog and digital devices as well as new observation techniques, the observational capabilities of UTR-2 have been substantially enhanced. The total effective area of UTR-2 and URAN arrays reaches 200 000 m2, with 24 MHz observational bandwidth (within the 8–32 MHz frequency range), spectral and temporal resolutions down to 4 kHz and 0.5 msec in dynamic spectrum mode or virtually unlimited in waveform mode. Depending on the spectral and temporal resolutions and confusion effects, the sensitivity of UTR-2 varies from a few Jy to a few mJy, and the angular resolution ranges from ~ 30 arcminutes (with a single antenna array) to a few arcseconds (in VLBI mode). In the framework of national and international research projects conducted in recent years, many new results on Solar system objects, the Galaxy and Metagalaxy have been obtained. In order to extend the observation frequency range to 8–80 MHz and enlarge the dimensions of the UTR-2 array, a new instrument – GURT (Giant Ukrainian Radio Telescope) – is now under construction. The radio telescope systems described herein can be used in synergy with other existing low-frequency arrays such as LOFAR, LWA, NenuFAR, as well as provide ground-based support for space-based instruments.
Keywords : Space research Radio astronomy Radio telescope Antenna arrays
Document type :
Journal articles
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https://hal-insu.archives-ouvertes.fr/insu-01436112
Contributor : Nathalie Rouchon <>
Submitted on : Monday, January 16, 2017 - 11:08:46 AM
Last modification on : Friday, November 22, 2019 - 2:47:53 PM

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A. Konovalenko, L. Sodin, V. Zakharenko, P. Zarka, O. Ulyanov, et al.. The modern radio astronomy network in Ukraine: UTR-2, URAN and GURT. Experimental Astronomy, springer Link, 2016, 42 (1), pp.11 - 48. ⟨10.1007/s10686-016-9498-x⟩. ⟨insu-01436112⟩

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