27th Young Scientists' Conference on Astronomy and Space Physics

Session

Solar physics and heliosphere; Atmospheric studies and space geophysics

29 Apr 2021, 18:00

https://us02web.zoom.us/j/2709113918?pwd=ZnIyUml2VEN6YnkvSi90eTlwUzNLUT09

Conveners

Solar physics and heliosphere; Atmospheric studies and space geophysics

• Roman Akhmetshyn (Taras Shevchenko National University of Kyiv, Kyiv, Ukraine)

32. Magnetic switchbacks and associated with them plasma waves in the young solar wind: Parker Solar Probe observations at 35.7 solar radii

Dr Oleksiy Agapitov (SSL UC Berkeley, Berkeley, United States)

29/04/2021, 18:00

Parker Solar Probe (Fox et al., 2016) is the first spacecraft to go close enough to the Sun to sample the in-situ characteristics of the young solar wind during its formation aiming to trace the flow of energy that heats and accelerates the solar corona and solar wind; to determine the structure and dynamics of the plasma and magnetic fields at the sources of the solar wind; and to explore...

40. Penetration of electric field from the near-ground ULF source to the ionosphere under different configurations of the geomagnetic field

Mr Sergei Petrishchevskii (Taras Shevchenko National University of Kyiv, Kyiv, Ukraine)

29/04/2021, 18:50

The problem of the penetration of electric fields from atmospheric near-Earth ULF electric current sources to the ionosphere is investigated both within the dynamic simulations of the Maxwell equations in the frequency domain and within the simplified quasi-stationary approach.
Two cases of the geomagnetic filed lines are considered. The first case is the penetration of the geomagnetic filed...

41. Plasma Wave Recognition by Multipoint Filtering Techniques

Mr Bohdan Petrenko (Taras Shevchenko National University of Kyiv, Kyiv, Ukraine)

29/04/2021, 19:05

Turbulent wave fluctuations of plasma parameters obtained from the spacecraft measurements have mixed manifestations of spatial and temporal scales due to the dynamics of the considered environment. Decomposing of such plasma perturbations into frequency and spatial range have allowed us to analyse power distribution in branches of dispersion equations. We have demonstrated efficiency of each...

42. Multicomponent photoionization modelling of the HII regions surrounding continuous star-forming regions.(12+3)

Mr Ihor Koshmak (Ivan Franko National University of Lviv, Lviv, Ukraiine)

29/04/2021, 19:20

We represent the method of modelling of the HII regions surrounding continuous star-forming regions. The complex "bubble-like" structure of the HII region has been divided into internal and external components. Internal components correspond to the region of free expansion of superwind and the cavity of superwind correspondinly, while the external ones - to a layer of gas, compressed by a...