Relation between the area of polar coronal holes and the solar wind speed at a minimum between solar cycles 22 and 23-Reference-Cited by-同舟云学术

Relation between the area of polar coronal holes and the solar wind speed at a minimum between solar cycles 22 and 23

Published:2023-09-29 Issue:3 Volume:9 Page:122-127
ISSN:2712-9640
Container-title:Solnechno-Zemnaya Fizika
language:en
Short-container-title:

Author:

Borisenko Aleksey¹,Bogachev Sergey²³^ORCID

Affiliation:

1. Lebedev Physical Institute of the Russian Academy of Sciences

2. Space Research Institute of RAS

3. Samara National Research University

Abstract

We have used data from the space telescope SOHO/EIT and the spectrometer VEIS on the Wind spacecraft to compare the solar wind (SW) speed near Earth's orbit with changes in the area of polar coronal holes (CHs) on the Sun during the 1996 solar activity minimum. We have found that in March 1996 the SW speed correlated with the southern CH area by a factor of 0.64. In September and October 1996, a correlation was revealed between the SW speed and the area of the northern CH (the coefficients are 0.64 and 0.85 respectively). We believe that this confirms the assumption that the solar wind from polar CHs can penetrate into the ecliptic plane at solar minimum. The SW speed was 460–500 km/s, which is lower than that from equatorial CHs (600–700 km/s).

Publisher

Infra-M Academic Publishing House

Subject

General Medicine

Reference24 articles.

1. Ахтемов З.С., Цап Ю.Т. О зависимости магнитного поля низкоширотной корональной дыры от ее площади. Письма в Астрономический журнал. 2021. Т. 47, № 2. С. 138–144. DOI: 10.31857/S0320010821010010., Ahtemov Z.S., Cap Yu.T. O zavisimosti magnitnogo polya nizkoshirotnoy koronal'noy dyry ot ee ploschadi. Pis'ma v Astronomicheskiy zhurnal. 2021. T. 47, № 2. S. 138–144. DOI: 10.31857/S0320010821010010.

2. Богачёв С., Рева А., Кириченко А. и др. Влияние активных областей на характеристики солнечного ветра в максимуме цикла. Письма в Астрономический журнал. 2022. Т. 48, № 7. С. 523–532. DOI: 10.31857/S0320010822070038., Baker K.B., Papagiannis M.D. Correlation of high latitude coronal holes with solar wind streams far above or below the ecliptic. Solar Phys. 1982, vol. 78, pp. 365–372. DOI: 10.1007/BF00151616.

3. Борисенко А.В., Богачёв С.А. Влияние полярных корональных дыр на характеристики солнечного ветра в минимуме активности между 24-м и 25-м солнечными циклами. Письма в Астрономический журнал. 2020. Т. 46, № 11. С. 802–813. DOI: 10.31857/S0320010820110017., Bogachev S.A., Reva A.A., Kirichenko A.S., Ulyanov A.S., Loboda I.P. Influence of Active Regions on Solar Wind Characteristics at the Cycle Maximum. Astronomy Lett. 2022, vol. 48, no. 7, pp. 406–415. DOI: 10.1134/S1063773722070039.

4. Просовецкий Д.В., Мягкова И.Н. Связь топологии квазиоткрытых структур солнечного магнитного поля и геомагнитных возмущений. Солнечно-земная физика. 2011. № 17. С. 68–73., Borisenko A.V., Bogachev S.A. Influence of Polar Coronal Holes on Solar Wind Characteristics at the Activity Minimum between Solar Cycles 24 and 25. Astronomy Lett. 2020, vol. 46, no. 11, pp. 751–761. DOI: 10.1134/S1063773720110018.

5. Чашей И.В., Лебедева Т.О., Тюльбашев С.А., Субаев И.А. Коротирующие и распространяющиеся возмущения в солнечном ветре по данным мониторинга межпланетных мерцаний на радиотелескопе БСА ФИАН в 2017 г. Астрономический журнал. 2020. Т. 97, № 1. С. 73–88. DOI: 10.31857/S0004629920010089., Chashei I.V., Lebedeva T.O., Tyul’bashev S.A., Subaev I.A. Corotating and propagating disturbances in the solar wind based on monitoring of interplanetary scintillations at the LPA radio telescope of the Lebedev Physical Institute in 2017. Astronomy Rep. 2020, vol. 64, pp. 66–81. DOI: 10.1134/ S1063772920010084.