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These files run the tasks of the RVSAO package from the Unix/Linux
command line as if you were inside IRAF. The parameters used come
from the IRAF home directory defined by the irafhome environment
variable or if that is not present, the IRAF/ subdirectory of the
user's home directory.
bcvcorr Compute barycentric velocity correction for a spectrum
contpars Set continuum fitting parameters for xcsao and emsao
contsum Set continuum fitting parameters for sumspec
emsao Find velocities (red shifts) of emission lines in a spectrum
emplot Plot a spectrum labelling emission and absorption lines
eqwidth Find equivalent widths of emission and absorption lines in a spectrum
ihelp Print help file of an IRAF task
irafhelp Print help file of an IRAF task
linespec Make an emission line template spectrum given a line list
listspec List the spectrum in the specified format
sumspec Add spectra, shift them, and/or remove continua
xcsao Cross-correlate a spectrum against a set of templates
If you type the command with no arguments
you will get a simple help message with options for parameter access
and more complete help, for example
> xcsao
XCSAO: Cross-correlate a spectrum against a set of templates
usage: xcsao spectrum [templates=xxx][other arguments]
xcsao help for IRAF help
xcsao dpar to dump parameters
xcsao epar to edit parameters
xcsao lpar to list parameters
where
<task> dpar dumps the parameters using IRAF's dpar as task.parameter=value
<task> epar edits the parameters using IRAF's eparam
<task> help opens IRAF help for the task
<task> lpar list the parameters using IRAF's lparam
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