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astro-ph.SR2026
Origin of the Long-Period Radial Velocity Variation in the Red Supergiant HD 216946 (V424 Lac)
Byeong-Cheol Lee, Myeong-Gu Park
We present precise radial-velocity (RV) observations of the K-type red supergiant HD~216946 (V424 Lac) obtained over approximately 22 years with the Bohyunsan Optical Astronomy Obs…
astro-ph.SR2026
A Search for Exoplanets around Northern Circumpolar Stars X. The origin of radial velocity variations in the evolved star HD 216595
Sang-Hee Kim, Byeong-Cheol Lee, Shenghong Gu +9
Detecting planetary companions around evolved stars, particularly asymptotic giant branch (AGB) stars, is challenging due to intrinsic stellar variability such as surface convectio…