Zobrazeno 1 - 10
of 216
pro vyhledávání: '"convective zone"'
Publikováno v:
The Astrophysical Journal Letters, Vol 965, Iss 1, p L8 (2024)
We present an analytical model that unifies many of the inertial waves that have been recently observed on the surface of the Sun, as well as many other modes that have been theoretically predicted—but have yet to be observed—into a single family
Externí odkaz:
https://doaj.org/article/5130eda3c84f473b8e1f9cb328724e13
Publikováno v:
The Astrophysical Journal, Vol 972, Iss 1, p 79 (2024)
We have carried out inversions of travel times as measured by Gizon et al. to infer the internal profile of the solar meridional circulation (MC). A linear inverse problem has been solved by the regularized least-squares method with a constraint that
Externí odkaz:
https://doaj.org/article/124a336bebc8475f8e04e1d7db7a25ae
Autor:
Krishnendu Mandal, Shravan M. Hanasoge
Publikováno v:
The Astrophysical Journal, Vol 967, Iss 1, p 46 (2024)
Recently discovered inertial waves, observed on the solar surface, likely extend to the deeper layers of the Sun. Utilizing helioseismic techniques, we explore these motions, allowing us to discern inertial mode eigenfunctions in both radial and lati
Externí odkaz:
https://doaj.org/article/3a07be4bc2544749ac43662f77eb4651
Autor:
Prasad Mani, Chris S. Hanson, Siddharth Dhanpal, Shravan Hanasoge, Srijan Bharati Das, Matthias Rempel
Publikováno v:
The Astrophysical Journal, Vol 965, Iss 2, p 186 (2024)
Magnetic flux emergence from the convection zone into the photosphere and beyond is a critical component of the behavior of large-scale solar magnetism. Flux rarely emerges amid field-free areas at the surface, but when it does, the interaction betwe
Externí odkaz:
https://doaj.org/article/a27fc8f6663a4b8ca63d9f12ddff2aca
Autor:
Sarbani Basu, Sylvain G. Korzennik
Publikováno v:
The Astrophysical Journal, Vol 964, Iss 1, p 8 (2024)
We have used solar oscillation frequencies and frequency splittings obtained over solar cycles 23 and 24 to investigate whether the base of the solar convection zone shows any departure from spherical symmetry. We used the even-order splitting coeffi
Externí odkaz:
https://doaj.org/article/2810314b63174b189499385a3bde1b34
Publikováno v:
The Astrophysical Journal, Vol 962, Iss 2, p 189 (2024)
We recently presented the first 3D numerical simulation of the solar interior for which tachocline confinement was achieved by a dynamo-generated magnetic field. In this follow-up study, we analyze the degree of confinement as the magnetic field stre
Externí odkaz:
https://doaj.org/article/f449e3acaa514fd6b5c3d1809a44aeed
Publikováno v:
The Astrophysical Journal Letters, Vol 951, Iss 2, p L47 (2023)
The physical connection between thermal convection in the solar interior and the solar wind remains unclear due to their significant scale separation. Using an extended version of the three-dimensional radiative magnetohydrodynamic code RAMENS, we pe
Externí odkaz:
https://doaj.org/article/3db66040ce8a4ded96fea1b225b8dce6
Autor:
Richard S. Bogart, Charles S. Baldner, Sarbani Basu, Rachel Howe, Maria Cristina Rabello Soares
Publikováno v:
The Astrophysical Journal Letters, Vol 950, Iss 2, p L21 (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 val
Externí odkaz:
https://doaj.org/article/1f9df725a34c4d4f9f734794ecc52e91
Autor:
S. S. A. Silva, M. Lennard, G. Verth, I. Ballai, E. L. Rempel, J. Warnecke, H. Iijima, H. Hotta, S.-H. Park, A. C. Donea, K. Kusano, V. Fedun
Publikováno v:
The Astrophysical Journal Letters, Vol 948, Iss 2, p L24 (2023)
One key aspect of understanding the solar dynamo mechanism and the evolution of solar magnetism is to properly describe the emergence of solar active regions. In this Letter, we describe the Lagrangian photospheric flows dynamics during a simulated f
Externí odkaz:
https://doaj.org/article/d8ad25c8286e487489b3c53d2828bd53
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