Results 11 to 20 of about 242,574 (198)

Differential Rotation for Different-sized Sunspot Groups Early Observed by the OGAUC

open access: yesThe Astrophysical Journal, 2023
Solar differential rotation is an important ingredient of the solar dynamo model, not only because the solar rotation profile is one of the key inputs in a solar dynamo model, but also because it imposes constraints for the solar dynamo model.
Miao Wan   +3 more
doaj   +1 more source

Internal Solar rotation [PDF]

open access: yesSymposium - International Astronomical Union, 1997
The rotation of the sun affects the wave propagation in the solar cavity. The measurement of the effect can be used to infer the internal rotation of the sun, and indeed much of what we know today about the dynamics of the solar interior has been derived from observation and interpretation of the rotationally induced splitting of solar p-mode ...
openaire   +1 more source

Assessing the tilt of the solar magnetic field axis through Faraday rotation observations [PDF]

open access: yes, 2007
Context: Faraday rotation measurements of extragalactic radio sources during coronal occultation allow assessment of both the electron density distribution and the three-dimensional magnetic field topology in the outer solar corona. Aims: We simulate the
Banaszkiewicz   +28 more
core   +2 more sources

Solar-type Stars Observed by LAMOST and Kepler

open access: yes, 2020
Obtaining measurements of chromospheric and photometric activity of stars with near-solar fundamental parameters and rotation periods is important for a better understanding of solar-stellar connection.
Bi, Shaolan   +10 more
core   +1 more source

Temporal variations of the rotation rate in the solar interior [PDF]

open access: yes, 2000
The temporal variations of the rotation rate in the solar interior are studied using frequency splittings from Global Oscillations Network Group (GONG) data obtained during the period 1995-99.
Basu S., H. M. Antia, Sarbani Basu
core   +3 more sources

Angular Momentum Transport In Solar-Type Stars: Testing the Timescale For Core-Envelope Coupling [PDF]

open access: yes, 2009
We critically examine the constraints on internal angular momentum transport which can be inferred from the spin down of open cluster stars. The rotation distribution inferred from rotation velocities and periods are consistent for larger and more recent
Allain   +38 more
core   +2 more sources

Study on the relation of the solar coronal rotation with magnetic field structures

open access: yesScientific Reports, 2023
Daily solar spectral irradiances (SSIs) at the spectral intervals 1–40, 116–264 and 950–1600 nm and four categories of solar small-scale magnetic elements ( $$MF_{no}$$ M F no , $$MF_{anti}$$ M F anti , $$MF_{tran}$$ M F tran and $$MF_{in}$$ M F in ) are
N. B. Xiang   +4 more
doaj   +1 more source

Evidence of a Quasiperiodic Global-scale Oscillation in the Near-surface Shear Layer of the Sun

open access: yesThe Astrophysical Journal Letters, 2023
We present evidence of hitherto undiscovered global-scale oscillations in the near-surface shear layer of the Sun. These oscillations are seen as large-scale variations of radial shear in both the zonal and meridional flows relative to their mean values.
Richard S. Bogart   +4 more
doaj   +1 more source

Generation of Solar-like Differential Rotation

open access: yesThe Astrophysical Journal, 2022
Abstract We analyze the simulation result shown in Hotta & Kusano (2021) in which the solar-like differential rotation is reproduced. The Sun is rotating differentially with the fast equator and the slow pole. It is widely thought that the thermal convection maintains the differential rotation, but recent high-resolution simulations ...
H. Hotta, K. Kusano, R. Shimada
openaire   +2 more sources

Anti‐solar differential rotation

open access: yesAstronomische Nachrichten, 2004
AbstractThe differential rotation of anti‐solar type detected by observations for several stars may result from a fast meridional flow. The sufficiently intensive meridional circulation may be caused by large‐scale thermal inhomogeneities or, perhaps, by tidal forcing from a companion star.
Kitchatinov, L. L., Rüdiger, G.
openaire   +2 more sources

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