70 citations · 187 across the 5 of their papers we have counts for
11 papers · 1 filter
What Prevents Internal Gravity Waves From Disturbing the Solar Uniform Rotation?
Pavel A. Denissenkov, Marc Pinsonneault, Keith B. MacGregor
Internal gravity waves (IGWs) are naturally produced by convection in stellar envelopes, and they could be an important mechanism for transporting angular momentum in the radiative…
The Impact of Carbon Enhancement on Extra Mixing in Metal-Poor Stars
Pavel A. Denissenkov, Marc Pinsonneault
We critically examine the constraints imposed by carbon-enhanced metal-poor (CEMP) stars on the mixing mechanisms that operate in red giants. CEMP stars are created when the surfac…
3He-Driven Mixing in Low-Mass Red Giants: Convective Instability in Radiative and Adiabatic Limits
Pavel A. Denissenkov, Marc Pinsonneault
We examine the stability and observational consequences of mixing induced by 3He burning in the envelopes of first ascent red giants. We demonstrate that there are two unstable mod…
Fluorine Abundance Variations as a Signature of Enhanced Extra Mixing in Red Giants of the Globular Cluster M4
Pavel A. Denissenkov, Marc Pinsonneault, Donald M. Terndrup
We show that enhanced extra mixing in low-mass red giants can result in a fluorine abundance that is correlated with abundance variations of other elements participating in H burni…
A Revised Prescription for the Tayler-Spruit Dynamo: Magnetic Angular Momentum Transport in Stars
Pavel A. Denissenkov, Marc Pinsonneault
Angular momentum transport by internal magnetic fields is an important ingredient for stellar interior models. In this paper we critically examine the basic heuristic assumptions i…
From Canonical to Enhanced Extra Mixing in Low-Mass Red Giants: Tidally Locked Binaries
Pavel Denissenkov, Brian Chaboyer, Ke Li
Stellar models which incorporate simple diffusion or shear induced mixing are used to describe canonical extra mixing in low mass red giants of low and solar metallicity. These mod…