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Related papers: Solar Inertial Modes

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Inertial modes have been observed on the Sun at low longitudinal wavenumbers. These modes probe the dynamics and structure of the solar convection zone down to the tachocline. While linear analysis allows the complex eigenfrequencies and…

Solar and Stellar Astrophysics · Physics 2023-05-31 J. Philidet , L. Gizon

On the one hand, several types of global-scale inertial modes of oscillation have been observed on the Sun. They include the equatorial Rossby modes, critical-latitude modes, and high-latitude modes. On the other hand, the columnar…

Solar and Stellar Astrophysics · Physics 2022-06-08 Yuto Bekki , Robert H. Cameron , Laurent Gizon

Rapidly rotating fluids have a rotation profile which depends only on the distance from the rotation axis, in accordance with the Taylor-Proudman theorem. Although the Sun was expected to be such a body, helioseismology showed that the…

Solar and Stellar Astrophysics · Physics 2024-03-29 Yuto Bekki , Robert H. Cameron , Laurent Gizon

Solar inertial modes are believed to play important diagnostic and dynamical roles in the Sun's differentially rotating convection zone. However, the coupling of these modes to the radiative interior has not yet been discussed. We aim to…

Solar and Stellar Astrophysics · Physics 2026-04-15 Suprabha Mukhopadhyay , Yuto Bekki , Xiaojue Zhu , Laurent Gizon

The oscillations of a slowly rotating star have long been classified into spheroidal and toroidal modes. The spheroidal modes include the well-known 5-min acoustic modes used in helioseismology. Here we report observations of the Sun's…

Solar inertial modes are quasi-toroidal modes of the Sun that are of practical interest as they allow probing the deep convection zone. Since 2010, solar images of the photospheric magnetic field are made available by HMI onboard the Solar…

Solar and Stellar Astrophysics · Physics 2025-02-10 Neelanchal Joshi , Zhi-Chao Liang , Damien Fournier , Laurent Gizon

The recent discovery of inertial waves on the surface of the Sun offers new possibilities to learn about the solar interior. These waves are long-lived with a period on the order of the Sun rotation period ($\sim$27 days) and are sensitive…

Solar and Stellar Astrophysics · Physics 2024-03-25 Tram Thi Ngoc Nguyen , Thorsten Hohage , Damien Fournier , Laurent Gizon

The Sun's axisymmetric large-scale flows, differential rotation and meridional circulation, are thought to be maintained by the influence of rotation on the thermal-convective motions in the solar convection zone. These large-scale flows…

Solar and Stellar Astrophysics · Physics 2023-10-27 Hideyuki Hotta , Yuto Bekki , Laurent Gizon , Quentin Noraz , Mark P. Rast

Various types of inertial modes have been observed and identified on the Sun, including the equatorial Rossby modes, critical-latitude modes, and high-latitude modes. Recent observations further report a detection of…

Solar and Stellar Astrophysics · Physics 2023-11-20 Yuto Bekki

Inertial wave modes in the Sun are of interest owing to their potential to reveal new insight into the solar interior. These predominantly retrograde-propagating modes in the solar subsurface appear to deviate from the thin-shell…

Solar and Stellar Astrophysics · Physics 2023-08-25 Jishnu Bhattacharya , Chris S. Hanson , Shravan M. Hanasoge , Katepalli R. Sreenivasan

Several types of inertial modes have been detected on the Sun. Properties of these inertial modes have been studied in the linear regime but have not been studied in nonlinear simulations of solar rotating convection. Comparing the…

Solar and Stellar Astrophysics · Physics 2022-10-19 Yuto Bekki , Robert H. Cameron , Laurent Gizon

The dynamics of the solar radiative interior are still poorly constrained by comparison to the convective zone. This disparity is even more marked when we attempt to derive meaningful temporal variations. Many data sets contain a small…

Solar and Stellar Astrophysics · Physics 2015-06-05 Antonio Eff-Darwich , Sylain G. Korzennik

Many questions are still open regarding the structure and the dynamics of the solar core. By constraining more this region in the solar evolution models, we can reduce the incertitudes on some physical processes and on momentum transport…

Solar and Stellar Astrophysics · Physics 2009-12-01 R. A. Garcia , J. Ballot , A. Eff-Darwich , R. Garrido , A. Jimenez , S. Mathis , A. Moya , P. L. Palle , C. Regulo , D. Salabert , J. C. Suarez , S. Turck-Chieze

Inertial waves, which are dominantly driven by the Coriolis force, likely play an important role in solar dynamics, and additionally, provide a window into the solar subsurface. The latter allows us to infer properties that are inaccessible…

Solar and Stellar Astrophysics · Physics 2023-01-18 Jishnu Bhattacharya , Shravan M. Hanasoge

The observation of global acoustic waves (p modes) in the Sun has been key to unveiling its internal structure and dynamics. A different kind of wave, known as sectoral Rossby modes, have been observed and identified, which potentially…

Solar and Stellar Astrophysics · Physics 2022-07-27 Santiago Andrés Triana , Gustavo Guerrero , Ankit Barik , Jérémy Rekier

Current state-of-the-art models of the solar convection zone consist of solutions to the Navier-Stokes equations in rotating, 3D spherical shells. Such models are highly sensitive to the choice of boundary conditions. Here, we present two…

Solar and Stellar Astrophysics · Physics 2020-07-31 Loren I. Matilsky , Bradley W. Hindman , Juri Toomre

Inertial modes have been recently detected in the Sun via helioseismology, yet their origin, evolution, and role in the dynamics of the solar plasma and magnetic field remain poorly understood. In this study, we employ global numerical…

The Sun rotates differentially with a fast equator and slow pole. Convection in the solar interior is thought to maintain the differential rotation. However, although many numerical simulations have been conducted to reproduce the solar…

Solar and Stellar Astrophysics · Physics 2021-09-15 H. Hotta , K. Kusano

We show that the differential rotation profile of the solar convection zone, apart from inner and outer boundary layers, can be reproduced with great accu- racy if the isorotation contours correspond to characteristics of the thermal wind…

Solar and Stellar Astrophysics · Physics 2015-05-13 S. A. Balbus , J. Bonart , H. N. Latter , N. O. Weiss

In a previous paper we studied the effect of latitudinal rotation on solar equatorial Rossby modes in the beta-plane approximation. Since then, a rich spectrum of inertial modes has been observed on the Sun, which is not limited to the…

Solar and Stellar Astrophysics · Physics 2022-08-10 Damien Fournier , Laurent Gizon , Laura Hyest
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