500 citations · 1.2k across the 40 of their papers we have counts for
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The solar dynamo begins near the surface
Geoffrey M Vasil, Daniel Lecoanet, Kyle Augustson +5
The Sun's magnetic dynamo cycle features a distinct pattern: a propagating region of sunspot emergence appears around 30 degrees latitude and vanishes near the equator every 11 yea…
The photometric variability of massive stars due to gravity waves excited by core convection
Evan H. Anders, Daniel Lecoanet, Matteo Cantiello +8
Massive stars die in catastrophic explosions, which seed the interstellar medium with heavy elements and produce neutron stars and black holes. Predictions of the explosion's chara…
The Puzzling Structure of Solar Convection: Window into the Dynamo
Nicholas A. Featherstone, Kyle C. Augustson, Jonathan M. Aurnou +25
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 pl…
The Stability of Prendergast Magnetic Fields
Emma Kaufman, Daniel Lecoanet, Evan H. Anders +4
Convection in massive main sequence stars generates large scale magnetic fields in their cores which persists as they evolve up the red giant branch. The remnants of these fields m…
Single-hemisphere dynamos in M-dwarf stars
Benjamin P. Brown, Jeffrey S. Oishi, Geoffrey M. Vasil +2
M-dwarf stars below a certain mass are convective from their cores to their photospheres. These fully convective objects are extremely numerous, very magnetically active, and the l…
Low-frequency variability in massive stars: Core generation or surface phenomenon?
Daniel Lecoanet, Matteo Cantiello, Eliot Quataert +6
Bowman et al. (2019) reported low-frequency photometric variability in 164 O- and B-type stars observed with K2 and TESS. They interpret these motions as internal gravity waves, wh…
Conversion of Internal Gravity Waves into Magnetic Waves
Daniel Lecoanet, Geoffrey M Vasil, Jim Fuller +2
Asteroseismology probes the interiors of stars by studying oscillation modes at a star's surface. Although pulsation spectra are well understood for solar-like oscillators, a subst…
Turbulent Chemical Diffusion in Convectively Bounded Carbon Flames
Daniel Lecoanet, Josiah Schwab, Eliot Quataert +6
It has been proposed that mixing induced by convective overshoot can disrupt the inward propagation of carbon deflagrations in super-asymptotic giant branch stars. To test this the…
Numerical Simulations of Internal Wave Generation by Convection in Water
Daniel Lecoanet, Michael Le Bars, Keaton J. Burns +4
Water's density maximum at 4C makes it well suited to study internal gravity wave excitation by convection: an increasing temperature profile is unstable to convection below 4C, bu…
Conduction in low Mach number flows: Part I Linear & weakly nonlinear regimes
Daniel Lecoanet, Benjamin P. Brown, Ellen G. Zweibel +3
Thermal conduction is an important energy transfer and damping mechanism in astrophysical flows. Fourier's law - the heat flux is proportional to the negative temperature gradient,…