One month convection timescale on the surface of a giant evolved star.

ABSTRACT: The transport of energy through convection is important during many stages of stellar evolution^1,2, and is best studied in our Sun³ or giant evolved stars⁴. Features that are attributed to convection are found on the surface of massive red supergiant stars^5-8. Also for lower-mass evolved stars, indications of convection are found^9-13, but convective timescales and sizes remain poorly constrained. Models indicate that convective motions are crucial to produce strong winds that return the products of stellar nucleosynthesis into the interstellar medium¹⁴. Here we report a series of reconstructed interferometric images of the surface of the evolved giant star R Doradus. The images reveal a stellar disk with prominent small-scal

SUBMITTER: Vlemmings W 

PROVIDER: S-EPMC11390477 | biostudies-literature | 2024 Sep

REPOSITORIES: biostudies-literature