Two Populations of Sunspot Groups and Their Meridional Motions

被引：3

作者：

Nagovitsyn, Yury ^{[1
,2
]}

Pevtsov, Alexei ^{[3
]}

Osipova, Aleksandra ^{[1
]}

机构：

[1] Cent Astron Observ Pulkovo, St Petersburg, Russia

[2] State Univ Aerosp Instrumentat, St Petersburg, Russia

[3] Natl Solar Observ, 3665 Discovery Dr, Boulder, CO 80303 USA

来源：

SOLAR PHYSICS | 2023年 / 298卷 / 09期

关键词：

Solar activity; Sunspots; Sunspot group populations; Velocity fields; SOLAR DIFFERENTIAL ROTATION; GENERAL-CIRCULATION; MAGNETIC-FIELDS; MOUNT WILSON; CYCLES; 10; VELOCITY; FLOW; STATISTICS; SUN; MAINTENANCE;

D O I：

10.1007/s11207-023-02204-8

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

It is shown that the average meridional velocities of sunspot groups linearly depend on their average longitudinal velocities (solar rotation) with a high correlation coefficient of -0.95. The relationship differs for small, short-lived and large, long-lived groups. The meridional motions of sunspots do not have any pronounced global distribution law with latitude, but depend on their individual longitudinal velocities in a rotating coordinate system close to the Carrington one. The found relations indicate that the Coriolis force may play a role in driving the meridional motions of sunspot groups.

引用

页数：15

共 50 条

[41] Evidence that a deep meridional flow sets the sunspot cycle period
Hathaway, DH
Nandy, D
Wilson, RM
Reichmann, EJ
ASTROPHYSICAL JOURNAL, 2003, 589 (01): : 665 - 670
[42] Periodicity of Twisting Motions in Sunspot Penumbral Filaments
Zongjun Ning
Wenda Cao
Philip R. Goode
Solar Physics, 2009, 257 : 251 - 260
[43] Periodicity of Twisting Motions in Sunspot Penumbral Filaments
Ning, Zongjun
Cao, Wenda
Goode, Philip R.
SOLAR PHYSICS, 2009, 257 (02) : 251 - 260
[44] ESTIMATION OF THE INTENSITY OF MERIDIONAL MOTIONS IN THE ATMOSPHERE.
Bagrov, N.A.
Soviet Meteorology and Hydrology (English Translation of Meteorologiya i Gidrologiya), 1976, (12): : 1 - 7
[45] Proper motions in sunspot penumbrae:: Signs of convection
Bonet, J. A.
Marquez, I.
Sanchez Almeida, J.
SOLAR POLARIZATION 4, 2006, 358 : 80 - +
[46] Meridional motions of magnetic features in the solar photosphere
Snodgrass, HB
Dailey, SB
SOLAR PHYSICS, 1996, 163 (01) : 21 - 42
[47] MEAN MERIDIONAL MASS MOTIONS OF THE STRATOSPHERE AND MESOSPHERE
DUNKERTON, T
JOURNAL OF THE ATMOSPHERIC SCIENCES, 1978, 35 (12) : 2325 - 2333
[48] Sunspot groups at high latitude
Li, KJ
Gu, XM
Xiang, FY
Liu, XH
Chen, XK
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2000, 317 (04) : 897 - 901
[49] MAGNETIC CLASSIFICATION OF SUNSPOT GROUPS
GREATRIX, GR
CURTIS, GH
OBSERVATORY, 1973, 93 (994): : 114 - 116
[50] PERIODICITY OF LARGE SUNSPOT GROUPS
KOPECKY, M
BULLETIN OF THE ASTRONOMICAL INSTITUTES OF CZECHOSLOVAKIA, 1973, 24 (03): : 113 - 118

← 1 2 3 4 5 →