Zobrazeno 1 - 10
of 32
pro vyhledávání: '"Tamara M. Rogers"'
Magnetically-driven hotspot variations (which are tied to atmospheric wind variations) in hot Jupiters are studied using non-linear numerical simulations of a shallow-water magnetohydrodynamic (SWMHD) system and a linear analysis of equatorial SWMHD
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2e4a7226cace510c4369e8c974f114f4
http://arxiv.org/abs/2107.07515
http://arxiv.org/abs/2107.07515
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 482:5500-5512
Internal gravity waves (IGW) propagate in the radiation zones of all stars. During propagation, their amplitudes are affected by two main features: radiative diffusion and density stratification. We have studied the implications of these two features
We use results of shallow-water magnetohydrodynamics (SWMHD) to place estimates on the minimum magnetic field strengths required to cause atmospheric wind variations (and therefore westward venturing hotspots) for a dataset of hot Jupiters (HJs), inc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0eea068148bbc2bb281f27183ae01b3f
Intermediate-mass main sequence stars have large radiative envelopes overlying convective cores. This configuration allows internal gravity waves (IGWs) generated at the convective-radiative interface to propagate towards the stellar surface. The sig
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3582fba4bdf044a02c260bafa37ca762
http://arxiv.org/abs/2008.03306
http://arxiv.org/abs/2008.03306
Autor:
P. V. F. Edelmann, Dominic M. Bowman, Sergio Simón-Díaz, Tamara M. Rogers, L. Horst, Conny Aerts, S. Burssens, Friedrich K. Röpke
Publikováno v:
Astronomy & Astrophysics, 640, 1-17
Astronomy & Astrophysics, 640, pp. 1-17
Astronomy & Astrophysics, 640, pp. 1-17
Context. Massive stars are predicted to excite internal gravity waves (IGWs) by turbulent core convection and from turbulent pressure fluctuations in their near-surface layers. These IGWs are extremely efficient at transporting angular momentum and c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d19fbf38b6fe8a81197c0ae3f2c525dc
http://hdl.handle.net/2066/221785
http://hdl.handle.net/2066/221785
Autor:
Norberto Castro, Dominic M. Bowman, R. P. Ratnasingam, Ehsan Moravveji, Sergio Simón-Díaz, Mathias Michielsen, Siemen Burssens, Benjamin J. S. Pope, Peter De Cat, Conny Aerts, B. Buysschaert, Timothy R. White, Tamara M. Rogers, M. G. Pedersen, Cole Johnston, Andrew Tkachenko, P. V. F. Edelmann
Publikováno v:
Nature Astronomy, 3, 760-765
Nature Astronomy
Nature Astronomy, 3, 8, pp. 760-765
Nature Astronomy
Nature Astronomy, 3, 8, pp. 760-765
Almost all massive stars explode as supernovae and form a black hole or neutron star. The remnant mass and the impact of the chemical yield on subsequent star formation and galactic evolution strongly depend on the internal physics of the progenitor
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b7367667d64be06cf0d074d1979beaec
https://lirias.kuleuven.be/handle/123456789/639116
https://lirias.kuleuven.be/handle/123456789/639116
Autor:
Andrew Tkachenko, Sergio Simón-Díaz, Cole Johnston, Dominic M. Bowman, Tamara M. Rogers, M. G. Pedersen, B. Buysschaert, Conny Aerts, Santiago Andrés Triana, P. V. F. Edelmann, T. Van Reeth
Publikováno v:
Astronomy and Astrophysics-A&A
Astronomy and Astrophysics-A&A, EDP Sciences, 2019, 621, pp.A135. ⟨10.1051/0004-6361/201833662⟩
Astronomy and Astrophysics-A&A, EDP Sciences, 2019, 621, pp.A135. ⟨10.1051/0004-6361/201833662⟩
Context. Main sequence stars with a convective core are predicted to stochastically excite Internal Gravity Waves (IGWs), which effectively transport angular momentum throughout the stellar interior and explain the observed near-uniform interior rota
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::24f82d2c2dd079c197cdc0cea6e5adfc
https://hal.sorbonne-universite.fr/hal-02188140/file/1811.08023.pdf
https://hal.sorbonne-universite.fr/hal-02188140/file/1811.08023.pdf
Publikováno v:
Annual Review of Astronomy and Astrophysics, 57, 35-78
Annual Review of Astronomy and Astrophysics
Annual Review of Astronomy and Astrophysics, 57, 1, pp. 35-78
Annual Review of Astronomy and Astrophysics
Annual Review of Astronomy and Astrophysics, 57, 1, pp. 35-78
Stars lose a significant amount of angular momentum between birth and death, implying that efficient processes transporting it from the core to the surface are active. Space asteroseismology delivered the interior rotation rates of more than a thousa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::348b3a113318da2b65af7cef96f279cc
http://hdl.handle.net/2066/207564
http://hdl.handle.net/2066/207564
Autor:
Tamara M. Rogers, R. P. Ratnasingam, M. G. Pedersen, Dominic M. Bowman, Vincent Prat, P. V. F. Edelmann
Publikováno v:
The Astrophysical Journal
We present the first three-dimensional (3D), hydrodynamic simulations of the core convection zone (CZ) and extended radiative zone spanning from 1% to 90% of the stellar radius of an intermediate mass (3 $\mathrm{M}_\odot$) star. This allows us to se
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1dba38ca5479d7903792bdbb8c1d0e12
Autor:
Werner W. Weiss, Anthony F. J. Moffat, R. P. Ratnasingam, Gregg A. Wade, Konstanze Zwintz, Tomer Shenar, Tamara M. Rogers, Rainer Kuschnig, Adam Popowicz, Gerald Handler, Andrzej Pigulski, Tahina Ramiaramanantsoa
Stochastically-triggered photospheric light variations reaching $\sim$$40$ mmag peak-to-valley amplitudes have been detected in the O8Iaf supergiant V973 Scorpii as the outcome of two months of high-precision time-resolved photometric observations wi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fe52dd67177ba14498552e6853f4f1f6
http://arxiv.org/abs/1807.04660
http://arxiv.org/abs/1807.04660