98 citations · 658 across the 21 of their papers we have counts for
21 papers
Magnetohydrodynamical torsional oscillations from thermo-resistive instability in hot jupiters
Raphaël Hardy, Paul Charbonneau, Andrew Cumming
Hot jupiter atmospheres may be subject to a thermo-resistive instability where an increase in the electrical conductivity due to ohmic heating results in runaway of the atmospheric…
Evolution of solar and stellar dynamo theory
Paul Charbonneau, Dmitry Sokoloff
In this paper, written as a general historical and technical introduction to the various review papers collected in the special issue ``Solar and Stellar Dynamo: A New Era'', we re…
Solaris: A Focused Solar Polar Discovery-class Mission to achieve the Highest Priority Heliophysics Science Now
Donald M. Hassler, Sarah E Gibson, Jeffrey S Newmark +33
Solaris is a transformative Solar Polar Discovery-class mission concept to address crucial outstanding questions that can only be answered from a polar vantage. Solaris will image…
Variability from thermo-resistive instability in the atmospheres of hot jupiters
Raphaël Hardy, Andrew Cumming, Paul Charbonneau
The atmosphere of a hot jupiter may be subject to a thermo-resistive instability, in which the increasing electrical conductivity with temperature leads to runaway Ohmic heating. W…
Forecasting Solar Flares by Data Assimilation in Sandpile Models
Christian Thibeault, Antoine Strugarek, Paul Charbonneau +1
The prediction of solar flares is still a significant challenge in space weather research, with no techniques currently capable of producing reliable forecasts performing significa…
A Mutation Threshold for Cooperative Takeover
Alexandre Champagne-Ruel, Paul Charbonneau
One of the leading theories for the origin of life includes the hypothesis according to which life would have evolved as cooperative networks of molecules. Explaining cooperation$-…
Powering Stellar Magnetism: Energy Transfers in Cyclic Dynamos of Sun-like Stars
Allan Sacha Brun, Antoine Strugarek, Quentin Noraz +5
We use the ASH code to model the convective dynamo of solar-type stars. Based on a series of 15 3-D MHD simulations spanning 4 bins in rotation and mass, we show what mechanisms ar…
Principles Of Heliophysics: a textbook on the universal processes behind planetary habitability
Karel Schrijver, Fran Bagenal, Tim Bastian +59
Heliophysics is the system science of the physical connections between the Sun and the solar system. As the physics of the local cosmos, it embraces space weather and planetary hab…
Impact of rogue active regions on hemispheric asymmetry
Melinda Nagy, Alexandre Lemerle, Paul Charbonneau
The solar dipole moment at activity minimum is a good predictor of the strength of the subsequent solar cycle. Through a systematic analysis using a state-of-the-art 22 D s…
The Effect of "Rogue" Active Regions on the Solar Cycle
Melinda Nagy, Alexandre Lemerle, François Labonville +2
The origin of cycle-to-cycle variations in solar activity is currently the focus of much interest. It has recently been pointed out that large individual active regions with atypic…
Reconciling solar and stellar magnetic cycles with nonlinear dynamo simulations
A. Strugarek, P. Beaudoin, P. Charbonneau +2
The magnetic fields of solar-type stars are observed to cycle over decadal periods -11 years in the case of the Sun. The fields originate in the turbulent convective layers of star…
A coupled D Babcock-Leighton solar dynamo model. II. Reference dynamo solutions
Alexandre Lemerle, Paul Charbonneau
In this paper we complete the presentation of a new hybrid D flux transport dynamo (FTD) model of the solar cycle based on the Babcock-Leighton mechanism of poloidal magn…
A coupled 22D Babcock-Leighton solar dynamo model. I. Surface magnetic flux evolution
Alexandre Lemerle, Paul Charbonneau, Arnaud Carignan-Dugas
The need for reliable predictions of the solar activity cycle motivates the development of dynamo models incorporating a representation of surface processes sufficiently detailed t…
IAU commission 10 "Solar Activity": Legacy report and triennial report for 2012-2015
Carolus J. Schrijver, Lyndsay Fletcher, Lidia van Driel-Gesztelyi +8
After more than half a century of community support related to the science of "solar activity'', IAU's Commission 10 was formally discontinued in 2015, to be succeeded by C.E2 with…
Evidence of active MHD instability in EULAG-MHD simulations of solar convection
N. Lawson, A. Strugarek, P. Charbonneau
We investigate the possible development of magnetohydrodynamical instabilities in the EULAG-MHD "millenium simulation" of Passos & Charbonneau (2014). This simulation sustains a la…
Meridional circulation dynamics from 3D MHD global simulations of solar convection
Dario Passos, Paul Charbonneau, Mark Miesch
The form of the solar meridional circulation is a very important ingredient for mean field flux transport dynamo models. Yet a shroud of mystery still surrounds this large-scale fl…
Predictive Capabilities of Avalanche Models for Solar Flares
Antoine Strugarek, Paul Charbonneau
We assess the predictive capabilities of various classes of avalanche models for solar flares. We demonstrate that avalanche models cannot generally be used to predict specific eve…
Deterministically Driven Avalanche Models of Solar Flares
Antoine Strugarek, Paul Charbonneau, Richard Joseph +1
We develop and discuss the properties of a new class of lattice-based avalanche models of solar flares. These models are readily amenable to a relatively unambiguous physical inter…
Formation and disruption of current filaments in a flow-driven turbulent magnetosphere
William W. Liu, Laura F. Morales, Vadim M. Uritsky +1
Recent observations have established that the magnetosphere is a system of natural complexity. The co-existence of multi-scale structures such as auroral arcs, turbulent convective…
Predicting Solar Flares by Data Assimilation in Avalanche Models. I. Model Design and Validation
Eric Bélanger, Alain Vincent, Paul Charbonneau
Data assimilation techniques, developed in the last two decades mainly for weather prediction, produce better forecasts by taking advantage of both theoretical/numerical models and…
Preliminary Constraints on 12C(alpha,gamma)16O from White Dwarf Seismology
T. S. Metcalfe, D. E. Winget, P. Charbonneau
For many years, astronomers have promised that the study of pulsating white dwarfs would ultimately lead to useful information about the physics of matter under extreme conditions…