Zobrazeno 1 - 10
of 40
pro vyhledávání: '"Dewberry, Janosz W."'
Autor:
Dewberry, Janosz W.
Publikováno v:
ApJ, 966 (2024) 180
Tidal torques can alter the spins of tidally interacting stars and planets, usually over shorter timescales than the tidal damping of orbital separations or eccentricities. Simple tidal models predict that, in eccentric binary or planetary systems, r
Externí odkaz:
http://arxiv.org/abs/2403.06979
The orbital architectures of short-period exoplanet systems are shaped by tidal dissipation in their host stars. For low-mass M-dwarfs whose dynamical tidal response comprises a dense spectrum of inertial modes at low frequencies, resolving the frequ
Externí odkaz:
http://arxiv.org/abs/2310.04588
Autor:
Dewberry, Janosz W., Wu, Samantha C.
Expansions in the oscillation modes of tidally perturbed bodies provide a useful framework for representing tidally induced flows. However, recent work has demonstrated that such expansions produce inaccurate predictions for secular orbital evolution
Externí odkaz:
http://arxiv.org/abs/2309.11502
Autor:
Lynch, Elliot M., Dewberry, Janosz W.
In this paper we develop a framework for studying unstratified, magnetised eccentric discs and compute uniformly precessing eccentric modes in a cylindrical annulus which provide convenient initial conditions for numerical simulations. The presence o
Externí odkaz:
http://arxiv.org/abs/2309.08261
Normal mode seismology is a promising means of measuring rotation in gas giant interiors, and ring seismology presents a singular opportunity to do so at Saturn. We calculate Saturn's normal modes of oscillation and zonal gravity field, using nonpert
Externí odkaz:
http://arxiv.org/abs/2303.16219
Autor:
Dewberry, Janosz W.
Publikováno v:
MNRAS. 521 (2023) 5991-6004
We develop a numerical method for directly computing the dissipative dynamical tidal response of rapidly rotating, oblate stars and gaseous planets with realistic internal structures. Applying these calculations to neutrally and stably stratified pol
Externí odkaz:
http://arxiv.org/abs/2301.07097
Publikováno v:
MNRAS Volume 516, Issue 1, October 2022, Pages 358-371
The excitation of density and bending waves in Saturn's C ring by planetary oscillation modes presents a unique opportunity to learn about gas giant interiors and rotation. However, theoretical complications related to Saturn's rapid and differential
Externí odkaz:
http://arxiv.org/abs/2207.04065
Autor:
Dewberry, Janosz W., Lai, Dong
Publikováno v:
ApJ. 925 (2022) 124
Tidal interactions play an important role in many astrophysical systems, but uncertainties regarding the tides of rapidly rotating, centrifugally distorted stars and gaseous planets remain. We have developed a precise method for computing the dynamic
Externí odkaz:
http://arxiv.org/abs/2110.12129
Publikováno v:
Planet. Sci. J. 2 (2021) 198
Normal mode oscillations in Saturn excite density and bending waves in the C Ring, providing a valuable window into the planet's interior. Saturn's fundamental modes (f modes) excite the majority of the observed waves, while gravito-inertial modes (r
Externí odkaz:
http://arxiv.org/abs/2106.07659
Publikováno v:
MNRAS 497 (2020) 451-465
Trapped inertial oscillations (r-modes) provide a promising explanation for high-frequency quasi-periodic oscillations (HFQPOs) observed in the emission from black hole X-ray binary systems. An eccentricity (or warp) can excite r-modes to large ampli
Externí odkaz:
http://arxiv.org/abs/2006.16266