 |
Astrophysics Source Code Library
Archive Page: RVSAO |
| Archive
| New
| Search
| Submit
| Links
| About ASCL.net |
RVSAO: Digital redshifts and radial velocities
Michael J. Kurtz &
Douglas J. Mink
Harvard-Smithsonian Center for Astrophysics
Abstract:
RVSAO is a set of programs to obtain
redshifts and radial velocities from digital spectra.
RVSAO operates in the
IRAF environment.
The heart of the system is xcsao,
which implements the cross-correlation method,
and is a direct descendant of the system built by
Tonry and Davis (1979).
emsao uses intelligent heuristics to search for
emission lines in spectra, then fits them to obtain a redshift.
sumspec shifts and sums spectra to build templates
for cross-correlation.
linespec builds synthetic spectra given a list
of spectral lines.
bcvcorr corrects velocities for the observatory motion
on the spinning Earth as well as motion of the Earth around
the Earth-Moon barycenter and the motion of that barycenter
around the Solar System barycenter. RVSAO has been written
to run with a minimum of user interaction and has been used
in several large redshift surveys.
Subject headings: instrumentation: spectrographs, methods: data analysis, techniques: radial velocities, techniques: spectroscopic
Latest Version: 2.1.19
Archived: 1999 December 27
Papers:
multiple, representative:
Kurtz, M. J. & Mink, D. J., 1998PASP..110..934K
Languages:
IRAF SPP, Fortran 77
External Explanatory Pages:
http://tdc-www.harvard.edu/iraf/rvsao/rvsao.html
Source Code:
http://ascl.net/rvsao/rvsao-2.1.19.tar.gz