State-of-the-art of low frequency radio astronomy, relevant antenna systems and international cooperation in Ukraine

A. Konovalenko, P. Zarka, V. Zakharenko, O. Ulyanov, M. Sidorchuk, S. Stepkin, P. Tokarsky, A. Stanislavsky, N. Kalinichenko, V. Koliadin, V. Melnik, V. Dorovskyy, V. Shepelev, A. Koval, I. Bubnov, S. Yerin, I. Vasylieva, A. Gridin, V. Kulishenko, A. Reznik, A. Reznichenko, G. Kvasov, A. Khristenko, G. Litvinenko, H. Rucker, M. Panchenko, G. Fischer, L. Denis, A. Coffre, J. Grießmeier, M. Tagger, J. Girard, D. Charrier, V. Ryabov, G. Mann, A. Brazhenko, V. Koshovyy
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引用次数: 2

Abstract

The low frequency radio astronomy (decameter-meter range, frequencies of 10-300 MHz) currently demonstrates rapid progress all over the world. New generations of large antennas - LOFAR, LWA, MWA and others - have been created in many countries. At the same time Ukrainian radio astronomical systems UTR-2 and URAN still remain the largest and most informative ones at the lowest frequency range available for the ground-based radio astronomy (below 33 MHz), especially after their radical modernization during the most recent years. A great number of top priority results have been obtained on the basis of these radio telescopes. The results prove a high significance of the low frequency radio astronomy for astrophysics. Substantial part of these results have been obtained in the course of many year cooperation between Ukraine on one side and France, Austria, Germany and other countries on the other. Creation of new low frequency instruments GURT (Ukraine) and LSS/NenuFAR (France) for the wide frequency range of 10-80 MHz opens up new possibilities for research and fruitful cooperation.
低频射电天文学的最新技术、有关的天线系统和乌克兰的国际合作
低频射电天文学(十米范围,频率10-300兆赫)目前在世界各地取得了迅速进展。新一代的大型天线——LOFAR、LWA、MWA等——已经在许多国家问世。与此同时,乌克兰射电天文系统UTR-2和URAN在地面射电天文学可用的最低频率范围内(低于33兆赫)仍然是最大和信息最多的系统,特别是在最近几年彻底现代化之后。在这些射电望远镜的基础上获得了大量的最高优先级的结果。结果证明了低频射电天文学对天体物理学的重要意义。这些成果的很大一部分是在乌克兰为一方与法国、奥地利、德国和其他国家多年合作的过程中取得的。创建新的低频仪器GURT(乌克兰)和LSS/NenuFAR(法国),用于10-80 MHz的宽频率范围,为研究和富有成效的合作开辟了新的可能性。
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