Imaging and Treatment of the PSF in AO Instruments: Application to NACO
Abstract
After about 15 years of operation with astronomical instruments, adaptive optics has now reached maturity: it is routinely used at several large telescopes and transparent for the astronomer. Though, adaptive optics assisted images have specificities compared to seeing-limited images, such as their point spread function profile or spatial/temporal variability, that I review in the following. Adaptive optics imaging, unlike seeing-limited imaging, offers the possibility to calibrate the PSF simultaneously to the scientific observations, using real-time measurements of the adaptive optics system itself. I introduce here this PSF reconstruction and review the different PSF reconstruction algorithms developed till now, in particular the one for NAOS.
- Publication:
-
2007 ESO Instrument Calibration Workshop
- Pub Date:
- 2008
- DOI:
- 10.1007/978-3-540-76963-7_36
- Bibcode:
- 2008eic..work..259C
- Keywords:
-
- Physics and Astronomy