Zobrazeno 1 - 10
of 673
pro vyhledávání: '"Efremov, V. A."'
12 stable single sunspots were investigated in two aspects. The outer boundaries of the sunspots umbra were determined by an independent mathematical method and the vertical component of the magnetic field at these boundaries was found. We analyzed d
Externí odkaz:
http://arxiv.org/abs/2101.11675
The main small-scale elements observed in the solar photosphere at high resolution are discussed: granules, faculaes, micropores. As a separate element of the fine structure, a continuous network of dark intergranular gaps is considered. The results
Externí odkaz:
http://arxiv.org/abs/1911.02556
The global oscillations of the Sun are investigated on the base of three independent sets of data: 1. Records of Total Solar Irradiance (TSI). 2. The average brightness of the photosphere in MDI (SOHO) and HMI (SDO) images. 3. Records of the time var
Externí odkaz:
http://arxiv.org/abs/1805.08856
Autor:
Efremov, V. I., Soloviev, A. A., Parfinenko, L. D., Riehokainen, A., Kirichek, E., Smirnova, V. V., Varun, Y. N., Bakunina, I., Zhivanovich, I.
A specific type of artifacts, that originate due to displacement of the image of a moving object along the digital (pixel) matrix of receiver are analyzed in detail. The criteria of appearance and the influence of these artifacts on the study of long
Externí odkaz:
http://arxiv.org/abs/1802.06379
We investigate the long-period fluctuations in the brightness of the Sun as a star using the measurements of sunlight reflected from the planets (Jupiter, Mars) when the light hits the field of view of the LASCO C3 coronagraph (Large Angle and Spectr
Externí odkaz:
http://arxiv.org/abs/1708.00837
The data of ground-based telescopes of Global Oscillation Network Group (GONG) obtained in the H-alpha line provide an opportunity to study the long-period oscillations of chromospheric filaments (quiescent prominence). For the first time, on the bas
Externí odkaz:
http://arxiv.org/abs/1602.03137
We processed magnetograms that were obtained with the Michaelson Doppler Imager onboard the Solar and Heliospheric Observatory (SOHO/MDI). The results confirm the basic properties of long-period oscillations of sunspots that have previously been esta
Externí odkaz:
http://arxiv.org/abs/1412.4107
Long (up to 100 hours) time series of SOHO/MDI Doppler data are analyzed. The power spectrum of radial velocity time series in the quiet photosphere is observed to have, along with the known 5-min mode, a stable strong mode with a period of about 32
Externí odkaz:
http://arxiv.org/abs/1412.2065
Three independent sets of data: i). series of filtergrams obtained in line CaII K (393.416 nm) with the ground-based telescope Precision Solar Photometric Telescope (PSPT) of Mauna Loa Solar Observatory; ii). series of filtergrams of Atmospheric Imag
Externí odkaz:
http://arxiv.org/abs/1412.1612
Publikováno v:
Inorganic Materials: Applied Research; Apr2024, Vol. 15 Issue 2, p273-279, 7p
