A Plasmoid Model for Mass Loss from Stars on the Upper Red Giant Branch: The Mass-loss Rate is Controlled by the Number of Density Scale Heights in the Convection Zone

Recent asteroseismic determinations of Δ M , the integrated mass loss on the red giant branch (RGB), for fields stars show a trend of Δ M decreasing as metallicity increases . This trend among field stars is inconsistent with many existing models of RGB mass loss. The present Letter is motivated by...

Full description

Saved in:
Bibliographic Details
Main Authors: J. MacDonald, D. J. Mullan
Format: Article
Language:English
Published: IOP Publishing 2025-01-01
Series:The Astrophysical Journal Letters
Subjects:
Online Access:https://doi.org/10.3847/2041-8213/adf6ae
Tags: Add Tag
No Tags, Be the first to tag this record!