Zobrazeno 1 - 10
of 39
pro vyhledávání: '"A. L. Sukharev"'
Publikováno v:
Radio Physics and Radio Astronomy, Vol 25, Iss 4, Pp 268-275 (2020)
Purpose: Based on the long-term study data in all radio spectrum ranges, the nature of deviations of spectral flux density of the Cas A supernova remnant from the tendency of its secular decrease is considered. The aim of this work is determining the
Externí odkaz:
https://doaj.org/article/696a89fbd2974705bd0090e0560d6576
Autor:
L. I. Sobitnyak, M. I. Ryabov, M. I. Orlyuk, A. L. Sukharev, A. O. Romenets, Yu. P. Sumaruk, A. A. Pilipenko
Publikováno v:
Radio Physics and Radio Astronomy, Vol 25, Iss 4, Pp 324-330 (2020)
Purpose: Compilation of a digital catalog of magnetic storms in the Odesa magnetic anomaly zone in order to find the reasons for possible changes in the radiation fluxes of cosmic radio sources, according to observations at the URAN-4 radio telescope
Externí odkaz:
https://doaj.org/article/6e82b69e8f774eb9825e8d9e9eeef5d9
Publikováno v:
Radio Physics and Radio Astronomy, Vol 24, Iss 4, Pp 254-271 (2019)
Purpose: Interrelation and difference in the appearance of quasiperiodic activity of BL-Lac objects OJ 287 and BL Lac is investigated according to optical and radio observations. The aim of the work is to determine and compare the basic quasi-periods
Externí odkaz:
https://doaj.org/article/8c5bac44249e4b43bd0f7e9a9f019c9d
Publikováno v:
Radio Physics and Radio Astronomy, Vol 24, Iss 1, Pp 68-79 (2019)
Purpose: The main oscillation periods of the geomagnetic field perturbation level in the Odesa magnetic anomaly area are studied by the data observed at the “Odesa” geomagnetic observatory within the 24th solar activity cycle. The work is purpose
Externí odkaz:
https://doaj.org/article/c6d6dbeb6f9448408d2ffd89556206ea
Publikováno v:
Odessa Astronomical Publications, Vol 31, Iss 0, Pp 163-166 (2018)
On magnetic observatory "Odessa" since 1948 measurements of a magnetic field of Earth . At the same time measurements of three elements of a magnetic field are registered: horizontal component (H), vertical component (Z) and inducement (D). On the ba
Externí odkaz:
https://doaj.org/article/feb5d31663e04395918deb9b4d0b047a
Publikováno v:
Radio Physics and Radio Astronomy, Vol 23, Iss 2, Pp 116-127 (2018)
Purpose: Since November 2017 till April 2018, the variation of geomagnetic field component was monitored at the Astronomical Observatory of the I. I. Mechnikov Odesa National University with the aim of investigating the mid-latitude geomagnetic pulsa
Externí odkaz:
https://doaj.org/article/4b3095f1131b404ba63d93b838055650
Publikováno v:
Radio Physics and Radio Astronomy, Vol 22, Iss 4, Pp 294-303 (2017)
Purpose: Investigation of the effects of the influence of solar and geomagnetic activity on the state of the Earth’s upper atmosphere by the method of “transmission through” it with the radiation of cosmic radio sources. Design/Methodology/a
Externí odkaz:
https://doaj.org/article/23ade96b9a524a918659c0187caf83eb
Publikováno v:
Radio Physics and Radio Astronomy, Vol 22, Iss 4, Pp 256-269 (2017)
Purpose: From April 2017, a monitoring program of observations has been started at the RT-16 telescope of Ventspils Radio Astronomy Center (frequencies 5, 6.1, 6.7, 8.4 GHz) to study the intraday and interdiurnal variability of extragalactic radio so
Externí odkaz:
https://doaj.org/article/402f67d40f5746ab9b238a8b25d83898
Publikováno v:
Odessa Astronomical Publications, Vol 29, Iss 0, Pp 207-210 (2016)
The time-frequency and multiple regression analysis of the orbital parameter characterizing the drag of satellites on circular and elliptical orbits with different perigees and orbital inclinations in the atmosphere of the Earth was being conducted i
Externí odkaz:
https://doaj.org/article/018e102c46b044baa13e2bc18ad7e054
Publikováno v:
Radio Physics and Radio Astronomy, Vol 21, Iss 3, Pp 161-188 (2016)
Purpose: Study of the variability of flux density of extragalactic radio sources (3C 273, 3C 120, 3C 345, 3C 446, 3C 454.3, OJ 287, OT 081, BL Lac, DA 55, CTA 102) according to a long-term (1965–2011) monitoring at 14.5, 8, 4.8 GHz made with a 26-m
Externí odkaz:
https://doaj.org/article/112dcfd2baaa415f89c2e411e5ca33ad