Evolution of Solar-type Activity: A Brief Study of Ca II Emission in Beta Hydri (G2 IV)
Abstract
We present results about the decrease of stellar activity for stars like the Sun evolving toward the subgiant stage. Specifically, we examine two-component chromosphere models (acoustic and magnetic) for β Hydri (G2 IV) based on detailed time-dependent simulations while focusing on Ca II emission. We convey models for two different photospheric magnetic filling factors.
- Publication:
-
Research Notes of the American Astronomical Society
- Pub Date:
- July 2022
- DOI:
- 10.3847/2515-5172/ac81d1
- Bibcode:
- 2022RNAAS...6..147C
- Keywords:
-
- Stellar physics;
- 1621