Zobrazeno 1 - 10
of 119
pro vyhledávání: '"Hindman, Bradley W."'
Publikováno v:
ApJL 975 L1 (2024)
Recent observational constraints on the internal structure of Jupiter and Saturn suggest that these planets have ``fuzzy" cores, i.e., gradients of the concentration of heavy elements that might span a large fraction of the planet's radius. These cor
Externí odkaz:
http://arxiv.org/abs/2408.10833
Recent observations of Rossby waves and other more exotic forms of inertial oscillations in the Sun's convection zone have kindled the hope that such waves might be used as a seismic probe of the Sun's interior. Here we present a 3D numerical simulat
Externí odkaz:
http://arxiv.org/abs/2312.14270
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 followup study, we analyze the degree of confinement as the magnetic field stren
Externí odkaz:
http://arxiv.org/abs/2311.10202
Autor:
Hindman, Bradley W., Fuentes, J. R.
Recent measurements of Jupiter's gravitational field (by Juno) and seismology of Saturn's rings (by Cassini) strongly suggest that both planets have a stably-stratified core that still possesses a primordial gradient in the concentration of heavy ele
Externí odkaz:
http://arxiv.org/abs/2310.16124
Autor:
Jain, Rekha, Hindman, Bradley W.
Using an analytic model, we derive the eigenfrequencies for thermal Rossby waves that are trapped radially and latitudinally in an isentropically stratified atmosphere. We ignore the star's curvature and work in an equatorial f-plane geometry. The pr
Externí odkaz:
http://arxiv.org/abs/2309.12903
Autor:
Hindman, Bradley W., Julien, Keith
Publikováno v:
ApJ, 960, 64 (2024)
Starting from the fully compressible fluid equations in a plane-parallel atmosphere, we demonstrate that linear internal gravity waves are naturally pseudo-incompressible in the limit that the wave frequency $\omega$ is much less than that of surface
Externí odkaz:
http://arxiv.org/abs/2309.10079
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
Publikováno v:
ApJL 950 L4 (2023)
Recent measurements of Jupiter's gravitational moments by the Juno spacecraft and seismology of Saturn's rings suggest that the primordial composition gradients in the deep interior of these planets have persisted since their formation. One possible
Externí odkaz:
http://arxiv.org/abs/2305.09921
Autor:
Featherstone, Nicholas A., Augustson, Kyle C., Aurnou, Jonathan M., Blume, Catherine, Brown, Benjamin P., Brummell, Nicholas, Burns, Keaton J., Calkins, Michael A., Camisassa, Maria, Dikpati, Mausumi, Fan, Yuhong, Fuentes, J. R., Guerrero, Gustavo, Hindman, Bradley W., Julien, Keith, Kitiashvili, Irina N., Korre, Lydia, Lecoanet, Daniel, Manek, Bhishek, Matilsky, Loren, Miesch, Mark, Nelson, Nicholas J., Oishi, Jeffrey S., Powers, Whitney T., Rempel, Matthias, Soderlund, Krista, Stejko, Andrey M., Vasil, Geoffrey M.
The operation of the solar dynamo, with all of its remarkable spatio-temporal ordering, remains an outstanding problem of modern solar physics. A number of mechanisms that might plausibly contribute to its operation have been proposed, but the relati
Externí odkaz:
http://arxiv.org/abs/2305.08823
Autor:
Hindman, Bradley W., Jain, Rekha
Publikováno v:
ApJ, 943, 127 (2023)
Within the convection zone of a rotating star, the presence of the Coriolis force stabilizes long-wavelength convective modes. These modes, which would have been unstable if the star lacked rotation, are called overstable convective modes or thermal
Externí odkaz:
http://arxiv.org/abs/2305.07064