Download p3d 2.1 Revision 1529
A general data-reduction tool for fiber-fed integral-field spectrographs
p3d is a general data-reduction tool that is intended to be used with data of fiber-fed integral field spectrographs (IFSs). This tool can be useful for people who have access to astronomical data of such an instrument. Data-reduction tasks, which are performed by p3d, convert raw data of CCD detectors into extracted spectra that can thereafter be used for scientific purposes. The aim with p3d has been to write a user-friendly tool that will reduce the time that is spent performing repetitive tasks in IFS data-reduction. p3d can combine several images (exposures) into one image, can extract spectra using three different methods, does full error propagation through all steps, and provides graphical tools for inspection of both intermediate and final results. Release 2.1 of p3d contains tools to handle the following tasks: * Creation of a master-bias image. * Cleaning of raw data of cosmic-ray hits. * Automatic finding and tracing of spectra on the detector. * Creation of a dispersion mask for wavelength calibration. * Creation of a dataset that is used to normalize (flat field) extracted spectra. * Extraction of science-object data, using different extraction methods. * Combination of extracted images of separate detectors to one image (VIMOS). * Correction of data for effects of differential atmospheric refraction (DAR; PMAS/Larr, Spiral, VIMOS, FLAMES, and MPFS). * Conversion of RSS-formated output of p3d to data cubes – for PMAS/Larr, Spiral, VIMOS, FLAMES, and MPFS – or the E3d-format (all instruments).