Bibcode
Femenía, B.; Labadie, L.; Rebolo, R.; Pérez-Prieto, J. A.; Pérez Garrido, A.; Díaz Sánchez, A.; Villo Pérez, I.
Referencia bibliográfica
Adaptive Optics Systems II. Edited by Ellerbroek, Brent L.; Hart, Michael; Hubin, Norbert; Wizinowich, Peter L. Proceedings of the SPIE, Volume 7736, pp. 77363X-77363X-11 (2010).
Advertised on:
7
2010
Número de citas
0
Número de citas referidas
0
Descripción
Traditionally thought as alternatives of each other, it has not been
until very recently when Adaptive Optics (AO) and lucky imaging (LI)
have been put to work together to achieve angular resolutions in the
visible wavelengths comparable to those acquired with an ideal
telescope. In this work the mutual benefits of combining fast frame
selection (a.k.a. Lucky Imaging, LI) with Adaptive Optics (AO) on a 10-m
class telescope are investigated by means of detailed Monte-Carlo
numerical simulations. We investigate the expected image quality by
looking at the Strehl Ratio (SR) at the optical R and I bands (around
650 and 800nm, respectively) and the potential of the technique to
conduct high-contrast imaging. From our numerical simulations we are
able to assess whether there is a net gain in the high-contrast
capabilities when applying wavelet-based filtering techniques. As a test
bench for what we should expect by moving on a 10-m class telescope we
present recent results achieved with AO+LI at the 4-m William Herschel
Telescope (WHT) by looking at the brown dwarf binary GJ569Bab.