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Xvoigt: An Interactive Absorption Line Fitting Program for the X Window System

Published online by Cambridge University Press:  25 April 2016

David P. Max  and
Geoff Bailey
David P. Max
Affiliation:
School of Physics, University of Sydney, NSW 2006, Australia. mar@physics.usyd.edu.au
Geoff Bailey
Affiliation:
Basser Department of Computer Science, University of Sydney, NSW 2006, Australia. ftww@cs.usyd.edu.au
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Abstract

We have developed an easy-to-use, mouse-driven program for the interactive fitting of interstellar absorption lines in high-resolution astronomical spectra. The program, Xvoigt, gives values for the column density and velocity dispersion of the absorbing clouds. It runs under the popular X Window system available on most workstations, and offers significant enhancements over existing profile-fitting software. Xvoigt can be an important adjunct to automatic programs for fitting absorption lines in low to moderate signal-to-noise QSO or other spectra, and is ideal for demonstrating the details and difficulties of absorption line analysis.

Keywords

methodsdata analysis — lineprofiles
Type
Instruments, Techniques and Basic Measurements
Information
Publications of the Astronomical Society of Australia , Volume 12 , Issue 2 , August 1995 , pp. 239 - 243
Copyright
Copyright © Astronomical Society of Australia 1995

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