Zobrazeno 1 - 10
of 30 716
pro vyhledávání: '"DIFFERENTIAL ROTATION"'
The presence of dips in the gravity modes period spacing versus period diagram of gamma Doradus stars is now well established by recent asteroseismic studies. Such Lorentzian-shaped inertial dips arise from the interaction of gravito-inertial modes i
Externí odkaz:
http://arxiv.org/abs/2412.02849
The daily measurements of the disc-integrated solar radio flux, observed by the Radio Solar Telescope Network (RSTN), at 245, 410, 610, 1415, 2695, 4995, and 8800 MHz during the time interval of 1989 January 1 to 2019 December 17, are used to investi
Externí odkaz:
http://arxiv.org/abs/2411.18105
Autor:
Tlatov, Andrei G., Tlatova, Kseniia A.
The analysis of the rotation rate of individual sunspots and pores was performed according to the data of the processing of observations by the \textit{Solar Dynamics Observatory/Helioseismic and Magnetic Imager} (SDO/HMI) in the period 2010\,--\,202
Externí odkaz:
http://arxiv.org/abs/2411.06985
We model the stochastic excitation of acoustic modes in solar-like pulsators taking into account the action of differential rotation. We derive the theoretical formalism for the stochastic excitation with differential rotation and make use of rotatin
Externí odkaz:
http://arxiv.org/abs/2410.22547
Publikováno v:
A&A, 689, A262 (2024)
Stellar spot distribution has consequences on the observable periodic signals in long-time baseline ground-based photometry. We model the statistics of the dominating spots of two young and active Solar-type stars, V889 Her and LQ Hya, in order to ob
Externí odkaz:
http://arxiv.org/abs/2410.06076
The presence of dips in the gravito-inertial modes period-spacing pattern of gamma-Dor stars is now well established by recent asteroseismic studies. Such Lorentzian-shaped inertial dips arise from the interaction of gravito-inertial modes propagatin
Externí odkaz:
http://arxiv.org/abs/2410.21425
We present a series of 9 Doppler images of the magnetically active K component of the RS CVn-type binary SZ Psc, based on the high-resolution spectroscopic data collected from 2014 to 2018. We apply least-squares deconvolution to all spectra to extra
Externí odkaz:
http://arxiv.org/abs/2410.17497
We study local magnetohydrodynamical (MHD) instabilities of differential rotation in magnetised, stably-stratified regions of stars and planets using a Cartesian Boussinesq model. We consider arbitrary latitudes and general shears (with gravity direc
Externí odkaz:
http://arxiv.org/abs/2410.06989
Differential rotation is one of the basic characteristics of the Sun, and it plays an important role in generating the magnetic fields and its activities. We investigated rotation rate using chromospheric features such as plages, enhanced network, ac
Externí odkaz:
http://arxiv.org/abs/2405.07532
Autor:
Böning, Vincent G. A., Wicht, Johannes
All planets and stars rotate. All gas planets in our solar system, the Sun, and many stars show a pattern of east- or westward mean flows. This phenomenon is known as differential rotation in the stellar and as zonal jets in the planetary context. Ob
Externí odkaz:
http://arxiv.org/abs/2407.13484