gscalibrate

andrea wrote on Sep 16, 2009

hi,

i am trying to flux calibrate my spectra. i have a perfectly normal looking sens.fits. however, when i use gscalibrate the continuum of the output looks very different than expected, it is way to bright in the blue. when i divide by hand my spectrum by the sensfunction it looks as expected. I wonder what goes wrong when i use the task gscalibrate.

hope you can help,

PACKAGE = gmos
TASK = gscalibrate

input = gJ32_0210.fits Input spectra to calibrate
(output = ) Output calibrated spectra
(outpref= x) Output prefix
(sfuncti= sens) Input image root name for sensitivity function
(sci_ext= SCI) Name of science extension
(var_ext= VAR) Name of variance extension
(dq_ext = DQ) Name of data quality extension
(key_air= AIRMASS) Airmass header keyword
(key_exp= EXPTIME) Exposure time header keyword
(fl_vard= no) Propagate VAR/DQ planes
(fl_ext = no) Apply extinction correction to input spectra
(fl_flux= yes) Apply flux calibration to input spectra
(fl_scal= no) Multiply output with fluxscale
(fluxsca= 1000000000000000.) Value of the flux scale (fl_scale=yes)
(ignorea= yes) Ignore aperture numbers in flux calibration
(fl_fnu = no) Create spectra having units of FNU
(extinct= onedstds$ctioextinct.dat) Extinction file
(observa= Gemini-South) Observatory
(logfile= ) Logfile name
(verbose= yes) Verbose?
(status = 0) Exit status (0=good)
(scanfil= ) For internal use only
(mode = ql)

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Mike Fitzpatrick wrote on Sep 16, 2009

I know some of the Gemini folks reads these forums, but if you don't get a reply soon you might try posting a Gemini HelpDesk request.

-Mike

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Last post on Sep 16, 2009