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pro vyhledávání: '"Hartlep, Thomas"'
Autor:
Fuentes, J. R., Hindman, Bradley W., Zhao, Junwei, Blume, Catherine C., Camisassa, Maria E., Featherstone, Nicholas A., Hartlep, Thomas, Korre, Lydia, Matilsky, Loren I.
Meridional circulation regulates the Sun's interior dynamics and magnetism. While it is well accepted that meridional flows are poleward at the Sun's surface, helioseismic observations have yet to provide a definitive answer for the depth at which th
Externí odkaz:
http://arxiv.org/abs/2308.07513
Autor:
Hartlep, Thomas, Zhao, Junwei
Helioseismic waves observable at the solar surface can be used to probe the properties of the Sun's interior. By measuring helioseismic travel times between different location on the surface, flows and other interior properties can be inferred using
Externí odkaz:
http://arxiv.org/abs/2102.06411
Autor:
Hartlep, Thomas, Cuzzi, Jeffrey N.
We use a newly developed cascade model of turbulent concentration of particles in protoplanetary nebulae to calculate several properties of interest to the formation of primitive planetesimals and to the meteorite record. The model follows, and corre
Externí odkaz:
http://arxiv.org/abs/2002.06321
Turbulent flows preferentially concentrate inertial particles depending on their stopping time or Stokes number, which can lead to significant spatial variations in the particle concentration. Cascade models are one way to describe this process in st
Externí odkaz:
http://arxiv.org/abs/1703.05871
Akademický článek
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Publikováno v:
A&A 592, A106 (2016)
Measuring the Sun's internal meridional flow is one of the key issues of helioseismology. Using the Fourier-Legendre analysis is a technique for addressing this problem. We validate this technique with the help of artificial helioseismic data. The an
Externí odkaz:
http://arxiv.org/abs/1606.05202
Helioseismic and magnetohydrodynamic waves are abundant in and above sunspots. Through cross-correlating oscillation signals in the photosphere observed by the SDO/HMI, we reconstruct how waves propagate away from virtual wave sources located inside
Externí odkaz:
http://arxiv.org/abs/1507.04795
Meridional flow in the solar interior plays an important role in redistributing angular momentum and transporting magnetic flux inside the Sun. Although it has long been recognized that the meridional flow is predominantly poleward at the Sun's surfa
Externí odkaz:
http://arxiv.org/abs/1307.8422
We performed 3D numerical simulations of the solar surface wave field for the quiet Sun and for three models with different localized sound-speed variations in the interior with: (i) deep, (ii) shallow, and (iii) two-layer structures. We used simulat
Externí odkaz:
http://arxiv.org/abs/1209.4877