Is the Metallicity-rotation Correlation in Stars Determined by Deep-seated or Near-surface Layers in the Convective Envelope?
Year: 2025
Type: article
Abstract: Metal-poor stars generally rotate faster than metal-rich stars. Recent explanations for this correlation rely on use of a Rossby number evaluated in the deepest layers of the convection zone. Here, I hypothesize that the correlation can also be understood in terms of conditions in the near-surface layers of the convection zone. The advantage of the latter is that physical parameters are more reliably measurable than in the deep interior.
Source: Research Notes of the AAS
Author: D. J. Mullan
Institution: University of Delaware
Language: English
Subfield: Astronomy and Astrophysics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: hybrid
OpenAlex ID: W4410020763