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RVSAO 2.8.4
An IRAF Radial Velocity Package

By Jessica Mink, SAO, February 5, 2021
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.

Download the latest version, 2.8.4 (February 5, 2021).
See the references for this package.

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.

Download and Install

History

Old Versions

Publications


Last updated 5 February 2021 by Jessica Mink

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