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FORS_EXTRACT_SLITS(7) fors recipes FORS_EXTRACT_SLITS(7)

NAME

fors_extract_slits - Spatial rectification of spectral image

SYNOPSIS

esorex fors_extract_slits [OPTIONS] FILE.sof

DESCRIPTION

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

OPTIONS

--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.

SEE ALSO

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 https://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 https://packages.python.org/python-cpl/index.html for further information.

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

VERSION

fors_extract_slits 5.4.3

AUTHOR

Carlo Izzo <usd-help@eso.org>

BUG REPORTS

Please report any problems to usd-help@eso.org. Alternatively, you may send a report to the ESO User Support Department <usd-help@eso.org>.

LICENSE

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

5.4.3 fors_extract_slits