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Paper: Automated Spectral Reduction in the IRAF Fabry-Perot Package
Volume: 77, Astronomical Data Analysis Software and Systems IV
Page: 510
Authors: Shopbell, P. L.; Bland-Hawthorn, J.
Abstract: As introduced at ADASS I and II (Bland-Hawthorn, Shopbell, & Cecil 1992), a Fabry-Perot analysis package for IRAF is under development as a joint effort of ourselves and the IRAF group. In this paper, we describe an important component of the Fabry-Perot package, the fpplot task for spectral plotting and fitting. While this task has many similarities with the familiar splot and specplot tasks in the onedspec package, fpplot has been optimized and extended specifically for use with imaging Fabry-Perot data. The task provides for the display and analysis of grids of spectra, including functions for binning, scaling, masking, and over-plotting spectra. The most important features of fpplot use the IRAF nlfit and inlfit nonlinear fitting libraries to perform both interactive and background fitting of Fabry-Perot spectra. Automated techniques are essential for quantifying the thousands of spectra in a Fabry-Perot data cube for velocity and photometric studies. An example is given from current work involving the starburst galaxy M82. IRAF is distributed by the National Optical Astronomy Observatories, which is operated by the Association of Universities for Research in Astronomy, Inc. (AURA) under cooperative agreement with the National Science Foundation.
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