Zobrazeno 1 - 10
of 24
pro vyhledávání: '"S A, Snegirev"'
Publikováno v:
Advances in Geosciences, Vol 3, Pp 41-46 (2005)
We present, how the Radiophysical Research Institute (NIRFI) has conducted work on the popularization of its scientific achievements in the areas of astronomy, solar physics, the Sun-Earth connection and associated geophysics.
Externí odkaz:
https://doaj.org/article/bac31f9937114ebf8349de6f4dd588af
Publikováno v:
Annales Geophysicae, Vol 20, Pp 1687-1691 (2002)
UHF electromagnetic emission (with a frequency near 600 MHz) from the F-region of the ionosphere pumped by an HF powerful radio wave is revealed. Possible mechanisms of the emission excitation, such as plasma mode con-version, scattering or Ear
Externí odkaz:
https://doaj.org/article/6e8ebb0e4635443b903518aa5e2e7ef7
Publikováno v:
Geomagnetism and Aeronomy. 56:249-255
We compare long-period pulsations of the horizontal component of the geomagnetic field at intervals that precede extreme solar flares. To this end, we use the wavelet–skeleton technique to process the geomagnetic field disturbances recorded at magn
Autor:
N. A. Dugin, I. Shmeld, A. A. Antipenko, A. Lesins, Vladislavs Bezrukovs, J. Trokss, S. D. Snegirev, Yu. V. Tikhomirov, V. Gavrilenko, M. Nechaeva, A. Dementjev
Publikováno v:
Open Astronomy, Vol 22, Iss 1, Pp 25-33 (2013)
Scopus-Elsevier
Scopus-Elsevier
Since 2012, the Radiophysical Research Institute and the Lobachevsky State University at Nizhny Novgorod, Russia and the Ventspils International Radio Astronomy Centre at Irbene, Latvia are making radio interferometric experiments on study of ionosph
Publikováno v:
Radiophysics and Quantum Electronics. 51:579-596
Two basic “geometric” effects manifest themselves as slow variations in the properties of the microwave radiation of the active region passing through the solar disk, namely 1) sign inversions of the circular polarization and 2) characteristic pe
Autor:
N. A. Dugin, S. D. Snegirev, Yu. V. Tikhomirov, A. A. Antipenko, A. F. Dement’ev, M. Nechaeva
Publikováno v:
Radiophysics and Quantum Electronics. 50:527-541
We consider the state-of-the-art of research in the field of very long baseline interferometry (VLBI) at the Radiophysical Research Institute (Nizhny Novgorod, Russia). In the past decade, the team of the VLBI Laboratory at this institute used the ex
Autor:
R. V. Khutornoy, A. S. Nabatov, A. A. Antipenko, Normunds Jekabsons, M. Klapers, Yu. V. Tikhomirov, V. F. Kulishenko, D. Putillo, A. A. Konovalenko, D. Bezrukov, V. V. Voytyuk, A. Reznichenko, V. V. Bezrukov, V. Nesteruk, M. Nechaeva, S. D. Snegirev, A. F. Dement’ev, K. Skirmante, N. A. Dugin, E. Salerno, I. Shmeld, A. K. Chagunin
Publikováno v:
Radiophysics and Quantum Electronics
An experiment on VLBI radar of the 2012 DA14 asteroid was carried out on February 15–16, 2011 at the time of its closest approach to the Earth. The research teams of Kharkov (Institute of Radio Astronomy of the National Academy of Sciences of Ukrai
Autor:
A. Kus, A. E. Volvach, M. Nechaeva, V. A. Samodurov, K. M. Borkowski, Alexander B. Pushkarev, Vladimir Agapov, A Deviatkin, G. Tuccari, A. Tsyukh, A. A. Konovalenko, Jin Zhang, E. P. Molotov, V. Saurin, Z. Sika, A. Sochilina, X. Huang, Xiaoyu Hong, Victor Arkadievich Stepaniants, A. F. Dementiev, S. D. Snegirev, Xiang Liu, I. S. Falkovich, S. Buttaccio, L. N. Litvinenko, Yu. N. Gorshenkov, I. Guseva, B. N. Lipatov, P. Sukhov, Igor Molotov, A. A. Antipenko, V. Abrosimov
Publikováno v:
Advances in Space Research. 34:884-891
The ability of the Evpatoria RT-70 radar complex to perform research on space debris was investigated in four trial experiments during 2001-2003. The echo-signals of 25 objects at geostationary, highly elliptical and medium-altitude orbits were recor
Autor:
V. Reznikova, X. Huang, Mamoru Sekido, Xiang Liu, B. A. Poperechenko, S. D. Snegirev, A. V. Kovalenko, J. F. H. Quick, Jin Zhang, A. Fink, I. Falkovich, G. Ozolins, A. A. Konovalenko, M. Sankararaman, George D. Nicolson, C. Stanghellini, A. Gridin, Sean M. Dougherty, S. Ananthakrishnan, L. Shiguang, V. I. Altunin, A. Kus, F. Mantovani, Yusei Koyama, Igor Molotov, B. N. Lipatov, A. A. Antipenko, K. M. Borkowski, Yu. N. Gorshenkov, X. Zhang, Alexander Dementiev, W. Na, I. Shmeld, Xiaoyu Hong, M. Nechaeva, D. Del Rizzo, D. Bezrukov, V. A. Samodurov, A. Benz, G. Tuccari, V. Balasubramanian, V. Saurin
Publikováno v:
Astronomical & Astrophysical Transactions. 22:743-752
The low-frequency very-long-baseline interferometry network (LFVN) project was started in 1996, having the purpose to arrange the international very-long-baseline interferometry (VLBI) cooperation with participation of former Soviet Union radio teles
Autor:
S. D. Snegirev, Olga Sheiner, B. N. Lipatov, Vladimir Fridman, T. S. Podstrigach, V. F. Mel’nikov, Yu. V. Tikhomirov
Publikováno v:
Radiophysics and Quantum Electronics. 45:75-90
This paper presents the results of studies of solar phenomena performed at the Radiophysical Research Institute (NIRFI) in the last years and based on the data of measuring the solar microwave radiation. We obtained new results concerning fragmentati