New decameter radiopolarimeter URAN-2
Vernadsky National Library of Ukraine
Переглянути архів Інформація| Поле | Співвідношення | |
| Title |
New decameter radiopolarimeter URAN-2
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| Creator |
Brazhenko, A.I.
Bulatsen, V.G. Vashchishin, R.V. Frantsuzenko, A.V. Konovalenko, A.A. Falkovich, I.S. Abranin, E.P. Ulyanov, O.M. Zakharenko, V.V. Lecacheux, A. Rucker, H. |
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| Subject |
MS1: Decameter Radioastronomy
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| Description |
The description of the new decameter radiopolarimeter is submitted. It is created based on the phased array URAN-2, which is the greatest decameter array in the world after UTR-2, having the effective area about 30 000 m2, consisting of 512 broadband dipoles and working at frequencies from 10 up to 30 MHz. Polarimeter works at the central frequency of 24.75 MHz in a band of 10 kHz and 0.3 kHz. It provides reception of circular polarization waves by the horizontal crossed dipoles from any direction. Its sensitivity is ≈100 Jy. With the URAN-2 radiopolarimeter polarizing characteristics of a sporadic radio emission of the Sun (bursts of II and III types), and Jupiter (L- and S-bursts) are investigated. The obtained data will consist well with the results derived in adjacent frequency ranges. At research of the radio emission of Cyg A and Cas A the essential fluctuations of a degree of circular polarization (Stokes V parameter) of these sources radiations are found. This is caused, presumably, by ionosphere inhomogeneity. It is unique radiopolarimeter really working on so low frequencies. The URAN-2 radiopolarimeter organically supplements unique Ukrainian system of URAN decameter radio telescopes.
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| Date |
2015-04-03T14:59:16Z
2015-04-03T14:59:16Z 2005 |
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| Type |
Article
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| Identifier |
New decameter radiopolarimeter URAN-2 / A.I. Brazhenko, V.G. Bulatsen, R.V. Vashchishin, A.V. Frantsuzenko, A.A. Konovalenko, I.S. Falkovich, E.P. Abranin, O.M. Ulyanov, V.V. Zakharenko, A. Lecacheux, H. Rucker // Кинематика и физика небесных тел. — 2005. — Т. 21, № 5-додаток. — С. 43-46. — Бібліогр.: 3 назв. — англ.
0233-7665 http://dspace.nbuv.gov.ua/handle/123456789/79600 |
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| Language |
en
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| Relation |
Кинематика и физика небесных тел
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| Publisher |
Головна астрономічна обсерваторія НАН України
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