22 citations · 36 across the 7 of their papers we have counts for
7 papers · 1 filter
Structural features of sun photosphere under high spatial resolution
A. A. Soloviev, L. D. Parfinenko, V. I. Efremov +2
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 con…
The global oscillations of the sun from tsi, soho and sdo data
V. I. Efremov, L. D. Parfinenko, A. A. Soloviev
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 phot…
Long-Term Oscillations of Sunspots and a Special Class of Artifacts in SOHO(MDI) and SDO(HMI) Data
V. I. Efremov, A. A. Soloviev, L. D. Parfinenko +6
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 o…
Global oscillations of the Sun according to the data of coronagraph SOHO LASCO C3
V. I. Efremov, L. D. Parfinenko, A. A. Soloviev
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…
Long-Period Oscillations of Sunspots Observed by SOHO/MDI
V. I. Efremov, L. D. Parfinenko, A. A. Solovev +1
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…
Supergranulation Velocity Field from the MDI (SOHO) Data
L. D. Parfinenko, V. I. Efremov, A. A. Solovev
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…
Identification of large-scale cellular structures on the Sun based on the SDO and PSPT data
V. I. Efremov, L. D. Parfinenko, A. A. Solovev
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…