Planet-Induced Emission Enhancements in HD 179949: Results from McDonald Observations
Planet-Induced Emission Enhancements in HD 179949: Results from McDonald Observations
Abstract We monitored the Ca ii H and K lines of HD 179949, a notable star in the southern hemisphere, to observe and confirm previously identified planet induced emission (PIE) as an effect of starāplanet interaction. We obtained high resolution spectra ( R ā¼ 53 000) with a signal-to-noise ratio ā¦