46 citations · 204 across the 25 of their papers we have counts for
25 papers
Extending asteroseismic magnetometry across the diverse landscape of magnetic structures
Nicholas Z. Rui, J. M. Joel Ong, Armand Leclerc +5
Magnetic fields have now been asteroseismically measured in the cores of many red giants. However, most interpretations of these measurements assume that the magnetic field is far…
Asteroseismic imprints of strong non-axisymmetric fields in the cores of red giants
Nicholas Z. Rui, J. M. Joel Ong, Armand Leclerc +5
To date, magnetic fields have been asteroseismically measured in nearly one hundred red giant cores. However, most analyses assume weak magnetic fields and slow rotation so that pe…
Saturn's Evolutionary History and Seismology: Survival of Deep Stably Stratified Regions in Evolutionary Models of Saturn Consistent with Ring Seismology
Yubo Su, Janosz W. Dewberry, Roberto Tejada Arevalo +2
With recent advances in the modeling of the solar system giant planets, rapid progress has been made in understanding the remaining questions pertaining to their formation and evol…
Isolating the gravitational influence of Uranus's winds requires close passages inward of the rings
Christopher R. Mankovich, Marzia Parisi, Damon F. Landau +1
Close orbits by a Uranus Orbiter and Probe (UOP) could be used to deduce Uranus's multipolar gravity field to higher precision and angular degree than the J2 and J4 currently measu…
Tidally driven inertial waves enhance eccentricity damping and spin evolution in planets and stars
Janosz W. Dewberry
Tidal interactions influence the orbital motions of binary star systems and extrasolar planets alike. Tides also affect stellar and planetary rotation rates. We demonstrate that in…
Instability and vertical eccentricity variation in global hydrodynamic disk simulations
Janosz W. Dewberry, Henrik N. Latter, Gordon I. Ogilvie +1
Many dynamical interactions can induce eccentricities in astrophysical accretion disks. Disk eccentricities in turn seed a variety of instabilities, even in ideal hydrodynamics. We…
Unveiling What Makes Saturn Ring: Quantifying the Amplitudes of Saturn's Planetary Normal-Mode Oscillations and Trends in C-Ring Properties Using Kronoseismology (VII)
Victor M Afigbo, Matthew M Hedman, Phillip Nicholson +4
Certain spiral density waves in Saturn's rings are generated through resonances with planetary normal modes, making them valuable probes of Saturn's internal structure. Previous re…
Setting the Stage for Uranian Seismology from Rings and Radial Velocities
Christopher R. Mankovich, A. James Friedson, Marzia Parisi +6
A Uranus orbiter would be well positioned to detect the planet's free oscillation modes, whose frequencies can resolve questions about Uranus's weakly constrained interior. We calc…
Testing tidal theory using Gaia binaries: the red giant branch
Janosz W. Dewberry, Yanqin Wu
Tidal interaction is a major ingredient in the theory of binary evolution. Here, we study tidal circularization in binaries with red giant primaries. We compute the tidal evolution…
Eccentricities of Close Stellar Binaries
Yanqin Wu, Sam Hadden, Janosz Dewberry +2
Orbits of stellar binaries are in general eccentric. These eccentricities encode information about their early lives. Here, we use thousands of main-sequence binaries from the Gaia…
Damping Obliquities of Hot Jupiter Hosts by Resonance Locking
J. J. Zanazzi, Janosz Dewberry, Eugene Chiang
When orbiting hotter stars, hot Jupiters are often highly inclined relative to their host star equator planes. By contrast, hot Jupiters orbiting cooler stars are more aligned. Pri…
Tidal synchronization trapping in stars and planets with convective envelopes
Janosz W. Dewberry
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 migration of exoplanets around M-dwarfs: frequency-dependent tidal dissipation
Samantha C. Wu, Janosz W. Dewberry, Jim Fuller
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 de…
On the damping of tidally driven oscillations
Janosz W. Dewberry, Samantha C. Wu
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 e…
Linear and nonlinear eccentric mode evolution in unstratified MHD discs
Elliot M. Lynch, Janosz W. Dewberry
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 c…
Saturn's Seismic Rotation Revisited
Christopher R. Mankovich, Janosz W. Dewberry, Jim Fuller
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 Satur…
Dynamical tides in Jupiter and other rotationally flattened planets and stars with stable stratification
Janosz W. Dewberry
We develop a numerical method for directly computing the dissipative dynamical tidal response of rapidly rotating, oblate stars and gaseous planets with realistic internal structur…
Impacts of zonal winds on planetary oscillations and Saturn ring seismology
Janosz W. Dewberry, Christopher R. Mankovich, Jim Fuller
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…
Dynamical tidal Love numbers of rapidly rotating planets and stars
Janosz W. Dewberry, Dong Lai
Tidal interactions play an important role in many astrophysical systems, but uncertainties regarding the tides of rapidly rotating, centrifugally distorted stars and gaseous planet…
Constraining Saturn's interior with ring seismology: effects of differential rotation and stable stratification
Janosz W. Dewberry, Christopher R. Mankovich, Jim Fuller +2
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) exci…
HFQPOs and discoseismic mode excitation in eccentric, relativistic discs. II. Magnetohydrodynamic simulations
Janosz W. Dewberry, Henrik N. Latter, Gordon I. Ogilvie +1
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 binar…
HFQPOs and discoseismic mode excitation in eccentric, relativistic discs. I. Hydrodynamic simulations
Janosz W. Dewberry, Henrik N. Latter, Gordon I. Ogilvie +1
High-frequency quasi-periodic oscillations (HFQPOs) observed in the emission of black-hole X-ray binary systems promise insight into strongly curved spacetime. `Discoseismic' oscil…
Quasi-periodic oscillations, trapped inertial waves and strong toroidal magnetic fields in relativistic accretion discs
Janosz W. Dewberry, Henrik N. Latter, Gordon I. Ogilvie
The excitation of trapped inertial waves (r-modes) by warps and eccentricities in the inner regions of a black hole accretion disc may explain the high-frequency quasi-periodic osc…
Quasi-periodic oscillations and the global modes of relativistic, MHD accretion discs
Janosz W. Dewberry, Henrik N. Latter, Gordon I. Ogilvie
The high-frequency quasi-periodic oscillations (HFQPOs) that punctuate the light curves of X-ray binary systems present a window onto the intrinsic properties of stellar-mass black…