StarFinder: an IDL GUI-based code to analyze crowded fields with isoplanatic correcting PSF fitting

StarFinder is a new code for the deep analysis of stellar fields, designed for well-sampled images with high and low Strehl ratio. It is organized in the form of a self-contained IDL widget-based application, with a 'user-friendly' graphic interface. We give here a general description of the code along with some applications to real data with space-invariant Point Spread Function (PSF). We present also some methods to handle anisoplanatic effects in wide-field Adaptive Optics (AO) observations.

[1]  G. G. Stokes "J." , 1890, The New Yale Book of Quotations.

[2]  P. Stetson DAOPHOT: A COMPUTER PROGRAM FOR CROWDED-FIELD STELLAR PHOTOMETRY , 1987 .

[3]  F. Roddier,et al.  Optical Propagation and Image Formation Through the Turbulent Atmosphere , 1989 .

[4]  Fionn Murtagh,et al.  Accelerating the Richardson-Lucy Restoration Algorithm , 1992 .

[5]  J. D. Shelton,et al.  Transverse spectral filtering and Mellin transform techniques applied to the effect of outer scale on tilt and tilt anisoplanatism , 1993 .

[6]  E. Bertin,et al.  SExtractor: Software for source extraction , 1996 .

[7]  James G. Nagy,et al.  Fast iterative image restoration with a spatially varying PSF , 1997, Optics & Photonics.

[8]  M. Edmunds,et al.  PHOTOMETRY WITH ADAPTIVE OPTICS : A FIRST GUIDE TO EXPECTED PERFORMANCE , 1998 .

[9]  Jean-Pierre Veran,et al.  Deconvolution method for accurate astrometry and photometry on adaptive optics images of stellar fields , 1998, Astronomical Telescopes and Instrumentation.

[10]  Laird M. Close,et al.  Astronomy with Adaptive Optics: Experiences from the University of Hawaii AO Program , 1999 .

[11]  Emiliano Diolaiti,et al.  Starfinder: a code for crowded stellar fields analysis , 1999 .

[12]  S. Bara,et al.  EFFECT OF ANISOTROPIC IMAGING IN OFF-AXIS ADAPTIVE ASTRONOMICAL SYSTEMS , 1999 .

[13]  F. Rigaut,et al.  An algorithm for crowded stellar fields analysis , 2000 .

[14]  F. Rigaut,et al.  Astronomy: Optics adapt to the whole sky , 2000, Nature.

[15]  C. Leitherer,et al.  The Red Stellar Population in NGC 1569 , 2000, astro-ph/0011510.