NACO Apodizing Phase Plate Imaging commissioning data release

Published: 25 May 2011

A new coronagraphic Apodizing Phase Plate (APP) has been placed since Period 86, in a pupil plane on NaCo and designed to work in the 3 to 5 micron range. APP Imaging is offered with either the narrow-band filter NB_4.05 or the broad band filter L_prime. It allows direct imaging (no mask) with an improved companion detection limit between 0.2 and 0.7” on one side of the PSF.
Commisioning (April 2010) results are now available on the NACO web site.