The Angular Diameter and Effective Temperature of the Lithium-Rich K Giant HD 148293 from the CHARA Array

Details The Angular Diameter and Effective Temperature of the Lithium-Rich K Giant HD 148293 from the CHARA Array The Angular Diameter and Effective Temperature of the Lithium-Rich K Giant HD 148293 from the CHARA Array

2011-03-14

arxiv.org/abs/1103.2742v1

Astronomy and Astrophysics

Astrophysics

Solar and Stellar Astrophysics

8 pages, 4 figures, 4 tables, accepted for publication in the ApJ

Scientific paper

We measured the angular diameter of the lithium-rich K giant star HD 148293 using Georgia State University's Center for High Angular Resolution Astronomy (CHARA) Array interferometer. We used our measurement to calculate the star's effective temperature, which allowed us to place it on an H-R diagram to compare it with other Li-rich giants. Its placement supports the evidence presented by Charbonnel & Balachandran that it is undergoing a brief stage in its evolution where Li is being created.

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