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Water content and wind acceleration in the envelope around the oxygen-rich AGB star IK Tauri as seen by<i>Herschel</i>/HIFI

Water content and wind acceleration in the envelope around the oxygen-rich AGB star IK Tauri as seen by<i>Herschel</i>/HIFI

During their asymptotic giant branch evolution, low-mass stars lose a significant fraction of their mass through an intense wind, enriching the interstellar medium with products of nucleosynthesis. We observed the nearby oxygen-rich asymptotic giant branch star IK Tau using the high-resolution HIFI spectrometer onboard <i>Herschel<i/>. We report on the first …