qplot: Check results of previously-run xcsao and emsao
Package: rvsao
Usage
qplot spectra
Parameters
- spectra = ""
- List of file names of spectra to analyze. @filename indicates list should come from file filename. As of version 1.3, apertures of multispec spectrum files can be entered as numbers, lists, or ranges enclosed in brackets after each file name in the list or file. This parameter is directly passed to the task chosen below.
- qtask = "xcsao"
- Task to run (xcsao or emsao)"}
- velplot = "combination"
- Velocity to plot (combination or emission or correlation
Description
QPLOT runs either XCSAO without correlating or EMSAO with finding new lines, then displays the spectrum with lines labelled and previously-obtained results. These results should have been written to the image headers using save_vel=yes when XCSAO and EMSAO were run. The cursor mode is turned on, so that initial conditions can be changed (such as a new redshift guess or deleted cosmic ray) and the program (XCSAO or EMSAO) can be rerun. The main reason for using QPLOT is to set a quality flag in the spectrum image header. If the task is not rerun, only the summary information is rewritten. If the spectrum is recorrelated or refit, the new results are only written to the spectrum header if a quality flag (y=OK, n=bad, j=questionable) is set.
Examples
To check the redshift of a single galaxy
cl> qplot galaxy
To check redshifts for a whole night's worth of galaxy spectra:
cl> qplot @nite1.ls