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Water Production Rate of the Jupiter-Family Comet 46P/Wirtanen in the 2008 Apparition with the Subaru Telescope/IRCS

Kawakita, Hideyo; Kobayashi, Hitomi

We present the water production rate of comet 46P/Wirtanen in its 2008 apparition, determined from high-dispersion near-infrared spectroscopic observations. Comet 46P/Wirtanen, one of Jupiter-family comets, was the target of the ROSETTA mission in the past. Observations of comet 46P were carried out in the middle of 2008 February with the Subaru t…