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

A. Konovalenko; L. Sodin; V. Zakharenko; P. Zarka; O. Ulyanov; M. Sidorchuk; S. Stepkin; P. Tokarsky; V. Melnik; N. Kalinichenko; A. Stanislavsky; V. Koliadin; V. Shepelev; V. Dorovskyy; V. Ryabov; A. Koval; I. Bubnov; S. Yerin; A. Gridin; V. Kulishenko; A. Reznichenko; V. Bortsov; V. Lisachenko; A. Reznik; G. Kvasov; D. Mukha; G. Litvinenko; A. Khristenko; V. Shevchenko; A. Shevchenko; A. Belov; E. Rudavin; I. Vasylieva; A. Miroshnichenko; N. Vasilenko; M. Olyak; K. Mylostna; A. Skoryk; A. Shevtsova; M. Plakhov; I. Kravtsov; Y. Volvach; O. Lytvinenko; N. Shevchuk; I. Zhouk; V. Bovkun; A. Antonov; D. Vavriv; V. Vinogradov; R. Kozhin; A. Kravtsov; E. Bulakh; A. Kuzin; A. Vasilyev; A. Brazhenko; R. Vashchishin; O. Pylaev; V. Koshovyy; A. Lozinsky; O. Ivantyshin; H. O. Rucker; M. Panchenko; G. Fischer; A. Lecacheux; L. Denis; A. Coffre; Jean-Mathias Grieβmeier; Michel Tagger; J. Girard; Didier Charrier; C. Briand; G. Mann

doi:10.1007/s10686-016-9498-x

Journal articles

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 ¹ E. Rudavin I. Vasylieva ¹ A. Miroshnichenko N. Vasilenko ⁵ M. Olyak K. Mylostna A. Skoryk A. Shevtsova M. Plakhov I. Kravtsov Y. Volvach O. Lytvinenko N. Shevchuk I. Zhouk V. Bovkun A. Antonov ⁶ D. Vavriv ¹ V. Vinogradov ¹ R. Kozhin A. Kravtsov E. Bulakh A. Kuzin ⁷ A. Vasilyev A. Brazhenko ⁸ R. Vashchishin O. Pylaev V. Koshovyy ⁸ A. Lozinsky O. Ivantyshin H. O. Rucker ⁹ M. Panchenko ⁹ G. Fischer ¹⁰ A. Lecacheux ² L. Denis ¹¹ A. Coffre ¹² Jean-Mathias Grieβmeier ¹³ Michel Tagger ¹³ J. Girard Didier Charrier ¹⁴ C. Briand ² G. Mann ¹⁵

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 LBPA - Laboratoire de Biologie et de Pharmacologie Appliquée

6 CRLAO - Centre de Recherches Linguistiques sur l'Asie Orientale

7 Physical and Computing Mechanics Department

TSU - Physical and Computing Mechanics Department

8 MAO - Main Astronomical Observatory of NAS of Ukraine

9 IWF - Space Research Institute of Austrian Academy of Sciences

10 IMP - Ingénierie des Matériaux Polymères

11 LHC - Laboratoire Hubert Curien [Saint Etienne]

12 USN - Unité Scientifique de la Station de Nançay

13 LPC2E - Laboratoire de Physique et Chimie de l'Environnement et de l'Espace

14 SUBATECH - Laboratoire SUBATECH Nantes

15 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 : Antenna arrays Radio telescope Radio astronomy Space research

Document type :

Journal articles

Domain :

Sciences of the Universe [physics]

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

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