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Molecules, shocks, and disk in the axi-symmetric wind of the MS-type AGB star RS Cancri
J. M. Winters, D. T. Hoai, K. T. Wong +6
The latest evolutionary phases of low- and intermediate mass stars are characterized by complex physical processes like turbulence, convection, stellar pulsations, magnetic fields,…
Convective Differential Rotation in Stars and Planets II: Observational and Numerical Tests
Adam S. Jermyn, Shashikumar M. Chitre, Pierre Lesaffre +1
Differential rotation is central to a great many mysteries in stars and planets. In Part I we predicted the order of magnitude and scaling of the differential rotation in both hydr…
Convective Differential Rotation in Stars and Planets I: Theory
Adam S. Jermyn, Shashikumar M. Chitre, Pierre Lesaffre +1
We derive the scaling of differential rotation in both slowly- and rapidly-rotating convection zones using order of magnitude methods. Our calculations apply across stars and fluid…
Bow-shock chemistry in the interstellar medium
L. N. Tram, P. Lesaffre, S. Cabrit +1
Stars are bad neighbors: they often disturb their surroundings. They sometimes travel very fast through the interstellar medium (ISM). They frequently undergo violent ejection even…
Turbulence Closure for Mixing Length Theories
Adam S. Jermyn, Pierre Lesaffre, Christopher A. Tout +1
We present an approach to turbulence closure based on mixing length theory with three-dimensional fluctuations against a two-dimensional background. This model is intended to be ra…
Overshoot Inwards from the Bottom of the Intershell Convective Zone in (S)AGB stars
J. C. Lattanzio, C. A. Tout, E. V. Neumerzhitckii +2
We estimate the extent of overshooting inwards from the bottom of the intershell convective zone in thermal pulses in (S)AGB stars. We find that the buoyancy is so strong that any…