Российский фонд
фундаментальных
исследований

Физический факультет
МГУ им. М.В.Ломоносова
 

Z

Zabolotnii V.

 

Panko E., Korshunov V., Yemelianov S., Zabolotnii V. «Linear substructures in galaxy clusters» Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 32, с. 33-36 (2019)

https://doi.org/10.18524/1810-4215.2019.32.182519

Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 32, с. 33-36 (2019) | Рубрика: 18

Zakhozhay V.A.

 

Zakhozhay V.A. «Hierarchical structure of the Universe» Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 31, с. 56-61 (2018)

https://doi.org/10.18524/1810-4215.2018.31.148048 The modern understanding of the structure of the Universe is discussed. The Solar System is viewed as an ordinary planetary system. The neighbourhood of the Sun is specified starting with the nearest stars and nearby clusters and working outward through the Local system of stars, in particular, Gould’s belt. The subgroups of the Milky Way, our stellar system, and Andromeda are examined as components of the Local Group of galaxies. Special attention is paid to their astrophysical, kinematic and dynamic properties. A larger agglomeration of galaxies, called the Local Supercluster, which contains the Local Group and its immediate neighbourhood is analysed. And finally, the Laniakea hypercluster to which the Local Supercluster and its environment belong is described along with its neighbours, namely the Perseus-Pisces hypercluster and the Local Void.

Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 31, с. 56-61 (2018) | Рубрика: 18

Zamyshlyaeva A.A.

 

Zamyshlyaeva A.A., Tsyplenkova O.N. «Optimal control of solutions to the initial-final problem for the model of linear waves in a plasma» Вестник Южно-Уральского государственного университета. Серия: Математика. Механика. Физика, 11, № 4, с. 26-31 (2019)

Исследована задача оптимального управления для уравнения соболевского типа высокого порядка с относительно полиномиально ограниченным пучком операторов. Результаты применены к исследованию оптимального управления решениями начально-конечной задачи для модели линейных волн в плазме. Первые результаты по уравнению, которое описывает линейные ионно-звуковые волны в незамагниченной плазме, и изучению некоторых свойств этих волн были получены Ю.Д. Плетнером. Начально-конечные условия, поставленные для уравнения соболевского типа четвертого порядка, являются обобщением условий в задаче Коши, которые неразрешимы при произвольных начальных значениях. Работа основывается на методе фазового пространства, разработанного Г.А. Свиридюком, и теории относительно полиномиально ограниченных пучков операторов, разработанной А.А. Замышляевой. В статье рассмотрено уравнение, которое описывает ионно-звуковые волны в плазме во внешнем магнитном поле.

Вестник Южно-Уральского государственного университета. Серия: Математика. Механика. Физика, 11, № 4, с. 26-31 (2019) | Рубрика: 06.08

Zhang Z.

 

Kaliuzhnyi M., Zhang Z., Bushuev F., Shulga O., Bezrukovs V., Reznichenko O., Melnychuk S., Malynovskyi Y. «Ongoing operation and perspectives of simple VLBI networks of geostationary satellites monitoring» Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 32, с. 148-150 (2019)

https://doi.org/10.18524/1810-4215.2019.32.181905

Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 32, с. 148-150 (2019) | Рубрика: 18

Zharikov S.V.

 

Kuratova A.K., Miroshnichenko A.S., Zharikov S.V., Manset N., Khokhlov S.A., Raj A., Kusakin A.V., Reva I.V., Kokumbaeva R.I., Usenko I.A., Knyazev A.Y. «Spectroscopic monitoring of the BE objects FSCMA and MOCAM» Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 32, с. 63-65 (2019)

https://doi.org/10.18524/1810-4215.2019.32.182100

Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 32, с. 63-65 (2019) | Рубрика: 18

Zhdanko Y.H.

 

Chernogor L.F., Garmash K.P., Zhdanko Y.H., Leus S.G., Luo Y. «Features of ionospheric effects from the partial solar eclipse over the city of Kharkiv on 10 June 2021» Радиофизика и радиоастрономия (Украина), 26, № 4, с. 326-343 (2021)

Purpose: Solar eclipses pertain to high-energy sources of disturbance in the subsystems of the Sun–interplanetary-medium–magnetosphere–ionosphere–atmosphere–Earth and the Earth–atmosphere–ionosphere–magnetosphere systems. During the solar eclipse, the coupling between the subsystems in these systems activates, and the parameters of the dynamic processes become disturbed. Investigation of these processes contributes to understanding of the structure and dynamics of the subsystems. The ionospheric response to the solar eclipse depends on the season, local time, magnitude of the solar eclipse, phase of the solar cycle, the observation site, the state of space weather, etc. Therefore, the study of the effects, which each new solar eclipse has on the ionosphere remains an urgent geophysics and radio physics problem. The purpose of this paper is to describe the radio wave characteristics and ionospheric parameters, which accompanied the partial solar eclipse of 10 June 2021 over the City of Kharkiv. Design/methodology/approach: To make observations, the means of the HF Doppler measurements at vertical and oblique incidence available at the V. N. Karazin Kharkiv National University Radiophysical Observatory were employed. The data obtained at the “Lviv” Magnetic Observatory were used for making intercomparison. Findings: The radiophysical observations have been made of the dynamic processes acting in the ionosphere during the solar eclipse of 10 June 2021 and on the reference days. The temporal variations in the Doppler frequency shift observed at vertical and oblique radio paths have been found to be, as a whole, similar. Generally speaking, the Doppler spectra over these radio propagation paths were different. Over the oblique radio paths, the number of rays was greater. The solar eclipse was accompanied by wave activity enhancement in the atmosphere and ionosphere. At least three wave trains were observed. The values of the periods (about 5–12 min) and the relative amplitudes of perturbations in the electron density (δN≈0.3–0.6%) give evidence that the wave disturbances were caused by atmospheric gravity waves. The amplitude of the 6–8-min period geomagnetic variations has been estimated to be 0.5–1 nT. Approximately the same value has been recorded in the X component of the geomagnetic field at the nearest Magnetic Observatory. The aperiodic effect of the solar eclipse has appeared to be too small (less than 0.01 Hz) to be observed confidently. The smallness of the effect was predetermined by an insignificant magnitude of the partial eclipse over the City of Kharkiv (no more than 0.11). Conclusions: The features of the solar eclipse of 10 June 2021 include an insignificant magnitude of the aperiodic effect and an enhancement in wave activity in the atmosphere and ionosphere.

Радиофизика и радиоастрономия (Украина), 26, № 4, с. 326-343 (2021) | Рубрика: 18

Zhoga A.D.

 

Tugay A.V., Pulatova N.G., Zhoga A.D. «Numerical estimator for large-scale cosmic structures» Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 31, с. 42-46 (2018)

https://doi.org/10.18524/1810-4215.2018.31.144738

Публикации Одесской астрономической обсерватории (Odessa Astronomical Publications, Украина), 31, с. 42-46 (2018) | Рубрика: 18