Telescope Data Center

RVSAO 2.8.1
An IRAF Radial Velocity Package

RVSAO is an IRAF add-on package developed at the Smithsonian Astrophysical Observatory Telescope Data Center to obtain radial velocities from spectra using cross-correlation and emission line fitting techniques.

The latest version is 2.8.2 (May 2, 2014). It is available in IRAF SPP source code via http or via ftp (Readme).
Redhat Linux binary executables for the current version are available via ftp or via http
Source code for version 2.0, which is described in our paper published in the August 1998 Publications of the Astronomical Society of the Pacific, is available via http.

Tasks in the RVSAO Package

xcsao
extracts redshifts and velocity dispersions using cross correlation methods
emsao
finds redshifts using emission line shifts
eqwidth
computes equivalent widths for rest-wavelength-specified spectral lines
contpars
sets parameters for continuum removal in xcsao, emsao, and eqwidth
sumspec
sums spectra to create a composite spectrum (added in 2.0)
contsum
sets parameters for continuum removal in sumspec
linespec
creates an artificial spectrum from a list of spectral lines (added in 2.0)
bcvcorr
sets barycentric velocity correction for non-standard header parameters
wl2pix
return the number of the pixel in a spectrum which corresponds to a specified wavelength
pix2wl
return the wavelength of a specified pixel in a spectrum
listspec
list pixel, wavelength, and value of specified piece of a spectrum
relearn
sets values in the parameter file of the new version of a task from the current values.

Local Installation

History

Old Versions

Publications


Last updated 13 June 2014 by Jessica Mink

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