An edge-on translucent dust disk around the nearest AGB star, L2 Puppis - VLT/NACO spectro-imaging from 1.04 to 4.05 μm and VLTI interferometry

  title={An edge-on translucent dust disk around the nearest AGB star, L2 Puppis - VLT/NACO spectro-imaging from 1.04 to 4.05 $\mu$m and VLTI interferometry},
  author={P. Kervella and M. Montarg{\`e}s and S. Ridgway and G. Perrin and O. Chesneau and S. Lacour and A. Chiavassa and X. Haubois and A. Gallenne},
  journal={Astronomy and Astrophysics},
As the nearest known AGB star (d=64pc) and one of the brightest (mK~-2), L2 Pup is a particularly interesting benchmark object to monitor the final stages of stellar evolution. We report new lucky imaging observations of this star with the VLT/NACO adaptive optics system in twelve narrow band filters covering the 1.0-4.0 microns wavelength range. These diffraction limited images reveal an extended circumstellar dust lane in front of the star, that exhibits a high opacity in the J band and… Expand
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