ABSTRACT Theoretical predictions of red giant branch stars’ effective temperatures, colors, luminosities, and surface chemical abundances are a necessary tool for the astrophysical interpretation of ...

A red giant star is a dying star in the last stages of stellar evolution. ... "The shock-heated atmosphere of an asymptotic giant branch star resolved by ALMA," Nature Astronomy 1, 848–853 (2017).

Born roughly twice as massive as the sun and lying about 1,300 light-years from Earth, V Hydrae is what’s known as an asymptotic giant branch star. It once fused hydrogen in its core, as the sun ...