Determination of the solar rotation parameters via orthogonal polynomials

T. G. Mdzinarishvili; B. M. Shergelashvili; D. R. Japaridze; B. B. Chargeishvili; A. G. Kosovichev; S. Poedts

doi:10.1016/j.asr.2020.01.015

Determination of the solar rotation parameters via orthogonal polynomials

T. G. Mdzinarishvili, B. M. Shergelashvili, D. R. Japaridze, B. B. Chargeishvili, A. G. Kosovichev, S. Poedts

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4 Scopus citations

Abstract

Accurate measurements of the solar differential rotation parameters are necessary for understanding the solar dynamo mechanism. We use the orthogonalization process to estimate these parameters. The advantage of the orthogonalization of the data in the tracer motion statistical analysis is outlined. The differential rotation is represented in terms of various types of polynomials. We compare the quality of a set of models of the solar differential rotation using the Akaike information criterion and choose the best one. Applying the proposed method, we studied the solar differential rotation and its North-South asymmetry using observations of coronal holes. A statistical analysis of observations from the Atmospheric Imaging Assembly (AIA) on Solar Dynamics Observatory (SDO) reveals the differential rotation pattern of coronal holes and its North-South asymmetry.

Original language	English (US)
Pages (from-to)	1843-1851
Number of pages	9
Journal	Advances in Space Research
Volume	65
Issue number	7
DOIs	https://doi.org/10.1016/j.asr.2020.01.015
State	Published - Apr 1 2020

All Science Journal Classification (ASJC) codes

Aerospace Engineering
Astronomy and Astrophysics
Geophysics
Atmospheric Science
Space and Planetary Science
General Earth and Planetary Sciences

Keywords

Solar coronal holes
Solar rotation
Statistical data analysis

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10.1016/j.asr.2020.01.015

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title = "Determination of the solar rotation parameters via orthogonal polynomials",

abstract = "Accurate measurements of the solar differential rotation parameters are necessary for understanding the solar dynamo mechanism. We use the orthogonalization process to estimate these parameters. The advantage of the orthogonalization of the data in the tracer motion statistical analysis is outlined. The differential rotation is represented in terms of various types of polynomials. We compare the quality of a set of models of the solar differential rotation using the Akaike information criterion and choose the best one. Applying the proposed method, we studied the solar differential rotation and its North-South asymmetry using observations of coronal holes. A statistical analysis of observations from the Atmospheric Imaging Assembly (AIA) on Solar Dynamics Observatory (SDO) reveals the differential rotation pattern of coronal holes and its North-South asymmetry.",

keywords = "Solar coronal holes, Solar rotation, Statistical data analysis",

author = "Mdzinarishvili, {T. G.} and Shergelashvili, {B. M.} and Japaridze, {D. R.} and Chargeishvili, {B. B.} and Kosovichev, {A. G.} and S. Poedts",

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doi = "10.1016/j.asr.2020.01.015",

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T1 - Determination of the solar rotation parameters via orthogonal polynomials

AU - Mdzinarishvili, T. G.

AU - Shergelashvili, B. M.

AU - Japaridze, D. R.

AU - Chargeishvili, B. B.

AU - Kosovichev, A. G.

AU - Poedts, S.

PY - 2020/4/1

Y1 - 2020/4/1

N2 - Accurate measurements of the solar differential rotation parameters are necessary for understanding the solar dynamo mechanism. We use the orthogonalization process to estimate these parameters. The advantage of the orthogonalization of the data in the tracer motion statistical analysis is outlined. The differential rotation is represented in terms of various types of polynomials. We compare the quality of a set of models of the solar differential rotation using the Akaike information criterion and choose the best one. Applying the proposed method, we studied the solar differential rotation and its North-South asymmetry using observations of coronal holes. A statistical analysis of observations from the Atmospheric Imaging Assembly (AIA) on Solar Dynamics Observatory (SDO) reveals the differential rotation pattern of coronal holes and its North-South asymmetry.

AB - Accurate measurements of the solar differential rotation parameters are necessary for understanding the solar dynamo mechanism. We use the orthogonalization process to estimate these parameters. The advantage of the orthogonalization of the data in the tracer motion statistical analysis is outlined. The differential rotation is represented in terms of various types of polynomials. We compare the quality of a set of models of the solar differential rotation using the Akaike information criterion and choose the best one. Applying the proposed method, we studied the solar differential rotation and its North-South asymmetry using observations of coronal holes. A statistical analysis of observations from the Atmospheric Imaging Assembly (AIA) on Solar Dynamics Observatory (SDO) reveals the differential rotation pattern of coronal holes and its North-South asymmetry.

KW - Solar coronal holes

KW - Solar rotation

KW - Statistical data analysis

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SP - 1843

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JO - Advances in Space Research

JF - Advances in Space Research

IS - 7

ER -

Determination of the solar rotation parameters via orthogonal polynomials

Abstract

All Science Journal Classification (ASJC) codes

Keywords

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