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Authors: G.Desiderà, A.La Camera, P.Boccacci, M.Bertero, M.Carbillet
Abstract: LINC-NIRVANA (LN) is the German-Italian Fizeau beam combiner for the Large Binocular Telescope (LBT), composed of two 8.4-m apertures on a unique mount. It will provide multiple images of the same astrophysical target corresponding to different orientations of the 22.8-m maximum baseline. Starting from the already existing Sofware Package AIRY (a set of IDL-based modules developed within the CAOS “system” and dedicated to simulation and/or deconvolution of single or multiple images), an ad-hoc version has been especially designed for the data that will be obtained with LN. In this paper, we present the resulting Software Package AIRY-LN. Its capabilities, including quick-look methods, methods for specific classes of astronomical objects, PSF extraction, and a blind deconvolution algorithm are detailed. An IDL-licence-free (by means of the IDL Virtual Machine) and observer-oriented version of the whole package (with pre-setted LN image processing parameters) is also presented.

Rating: 28 user(s) have rated this article Average rating: 5.0
Posted by: nicola, on 3/7/2008, in category "2008"
Views: this article has been read 7788 times
Authors: P. Ciliegi, A. La Camera, G. Desiderà, S. Antoniucci, C. Arcidiacono, M. Lombini, E. Diolaiti, E. Bellocchi, F. Mannucci, M. Bertero, P. Boccacci, D. Lorenzetti, and B. Nisini
Abstract: LINC-NIRVANA (LN) is a Fizeau interferometer that will provide for the first time coherent images in the near-IR combining the beams from the two Large Binocular Telescope (LBT)arms, by adopting a Multi-Coniugate Adaptive Optics system (MCAO) that allows for atmospheric turbulence compensation. We applied a software for the simulation and the reconstruction of LN images (AIRY-LN, see Desidera et al.1 this Conference) in two specific scientific cases: a relatively distant galaxy at redshift about 1 and a collimated jet from a Young Stellar Object (YSO). These two cases have been chosen to test the capability of LN in the observations of faint and small (1-2 arcsec) extragalactic objects and objects with diffuse emission and high dynamical range, respectively. A total of six images at different hour angles have been obtained for both cases. Using these simulated images, we obtained the final reconstructed images using the software package AIRY-LN. These images have been analyzed with the standard data reduction software (IRAF and IDL). Our analysis show that the reconstruction algorithm is fundamental to obtain a good reproduction of the original flux and morphology while the optimal number of iterations strongly depends on the scientific goal.

Rating: 12 user(s) have rated this article Average rating: 5.0
Posted by: andrea, on 7/30/2008, in category "2008"
Views: this article has been read 7742 times