The effects of stellar rotation on the absorption spectra of comets orbiting beta Pictoris.

摘要: Variable redshifted absorption features observed in the spectrum of β Pictoris have been attributed to comet-like bodies falling towards star. If most these comets belong a single orbital family, then lack corresponding complement moving away from Pic could be easily explained. We show herein that spatial variations Pic, which result stellar rotation, should observable effects temporal spectral signatures passing front suggest an observing strategy based on theoretical will allow determination direction passage and provide additional tests evaporating body model for