fors_extract_slits (7)

esorex fors_extract_slits [OPTIONS] FILE.sof

This recipe is used to extract MOS/MXU slit spectra, following their curvature, and to remap them into a spatially rectified image.

Please refer to the FORS Pipeline User\'s Manual for details about the spectra remapping technique. Note however that the interpolation is done exclusively along the spatial direction, and therefore the output rectified image will have the same x size of the input spectral image.

In the table below the MXU acronym can be alternatively read as MOS.

Input files:

  DO category:               Type:       Explanation:         Required:
  LAMP_UNBIAS_MXU
  or SCIENCE_UNBIAS_MXU
  or SCIENCE_UNFLAT_MXU
  or STANDARD_UNBIAS_MXU
  or STANDARD_UNFLAT_MXU
  or UNMAPPED_SCI_MXU
  or UNMAPPED_STD_MXU
  or UNMAPPED_SKY_SCI_MXU
  or UNMAPPED_SKY_STD_MXU    Calib       Spectral frame          Y
  SLIT_LOCATION_DETECT_MXU
  or SLIT_LOCATION_MXU       Calib       Master flat frame       Y
  CURV_COEFF_MXU             Calib       Spectral curvature      Y
  GRISM_TABLE                Calib       Grism table             .

Output files:

  DO category:               Data type:  Explanation:
  RECTIFIED_LAMP_MXU
  or RECTIFIED_ALL_SCI_MXU
  or RECTIFIED_ALL_STD_MXU
  or RECTIFIED_SCI_MXU
  or RECTIFIED_STD_MXU
  or RECTIFIED_SKY_SCI_MXU
  or RECTIFIED_SKY_STD_MXU   FITS image  Rectified slit spectra

--dispersion <float>

Expected spectral dispersion (Angstrom/pixel) (float; default: 0.0). The full name of this option for the EsoRex configuration file is fors.fors_extract_slits.dispersion [default = 0.0].

--startwavelength <float>

Start wavelength in spectral extraction (float; default: 0.0). The full name of this option for the EsoRex configuration file is fors.fors_extract_slits.startwavelength [default = 0.0].

--endwavelength <float>

End wavelength in spectral extraction (float; default: 0.0). The full name of this option for the EsoRex configuration file is fors.fors_extract_slits.endwavelength [default = 0.0].

--flux <bool>

Apply flux conservation (bool; default: True). The full name of this option for the EsoRex configuration file is fors.fors_extract_slits.flux [default = True].

Note that it is possible to create a configuration file containing these options, along with suitable default values. Please refer to the details provided by the 'esorex --help' command.

The full documentation for the fors pipeline can be downloaded as a PDF file using the following URL:

• ftp://ftp.eso.org/pub/dfs/pipelines/fors/fors-pipeline-manual-4.9.pdf

An overview over the existing ESO pipelines can be found on the web page http://www.eso.org/sci/software/pipelines/.

Basic documentation about the EsoRex program can be found at the esorex (1) man page.

It is possible to call the pipelines from python using the python-cpl package. See http://packages.python.org/python-cpl/index.html for further information.

The other recipes of the fors pipeline are fors_wave_calib_lss(7), fors_img_sky_flat(7), fors_resample(7), fors_config(7), fors_extract_objects(7), fors_calib(7), fors_wave_calib(7), fors_detect_objects(7), fors_pmos_science(7), test_hough(7), fors_img_screen_flat(7), fors_extract(7), fors_remove_bias(7), fors_subtract_sky(7), fors_normalise_flat(7), montecarlo(7), fors_photometry(7), fors_zeropoint(7), fors_dark(7), fors_subtract_sky_lss(7), fors_trace_flat(7), fors_flatfield(7), fors_img_science(7), fors_detect_spectra(7), fors_sumflux(7), fors_pmos_extract(7), fors_align_sky_lss(7), fors_bias(7), fors_align_sky(7), fors_pmos_calib(7), fors_spec_mflat(7), fors_science(7)

fors_extract_slits 5.0.0

Carlo Izzo <[email protected]>

Please report any problems to [email protected]. Alternatively, you may send a report to the ESO User Support Department <[email protected]>.

This file is currently part of the FORS Instrument Pipeline Copyright (C) 2002-2010 European Southern Observatory

This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA