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N. V. Karachik
Researcher at Academy of Sciences of Uzbekistan
Publications - 7
Citations - 35
N. V. Karachik is an academic researcher from Academy of Sciences of Uzbekistan. The author has contributed to research in topics: Coronal loop & Corona. The author has an hindex of 3, co-authored 7 publications receiving 26 citations. Previous affiliations of N. V. Karachik include Pedagogical University.
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Intensity and time series of extreme solar-terrestrial storm in 1946 March
Hisashi Hayakawa,Yusuke Ebihara,Alexei A. Pevtsov,Ankush Bhaskar,Ankush Bhaskar,N. V. Karachik,Denny M. Oliveira,Denny M. Oliveira +7 more
TL;DR: In this article, the authors examined a solar-terrestrial storm that occurred in 1946 March and quantitatively evaluated its parameters, based on measurements in four known mid-latitude and relatively complete magnetograms, which caused an initial phase with the H-component amplitude of ≥80 nT, followed by a main phase whose intensity was reconstructed as ≤−512 nT using most negative Dst* estimates.
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The effect of telescope aperture, scattered light and human vision on early measurements of sunspot and group numbers
TL;DR: In this paper, the effect of three parameters (telescope aperture, scattered light, and detection threshold of human vision) on sunspot number, group number, and area of sunspots were studied.
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What SDO tells us about structure and evolution of coronal bright points
TL;DR: In this article, the structure and evolution of a limited number of coronal bright points (CBPs) were studied using magnetograms and coronal images from two instruments on board the Solar Dynamics Observatory (SDO).
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On anticorrelation of number of coronal bright points with sunspot number during 1996–2006
TL;DR: In this article, the authors used full disk SOHO/EIT data from 1996 to 2006 to study the latitudinal distribution of coronal bright points over a period of one solar cycle.
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Investigation of the evolution of coronal bright points and magnetic field topology
TL;DR: In this article, the structure and magnetic evolution of several coronal bright points and small scale N-S polarity magnetic fluxes closely associated with them were investigated using the instruments onboard the Solar Dynamics Observatory (SDO) providing a high resolution of images.