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The cora line fitting package consists of eight programs. Help on
command line options can be obtained with the option -h.
- cora_fit - this is the main fitting program. It can be used
as a standalone command-line application, or it can be used from the
graphical user interface.
cora_fit requires a parameter file, and a spectrum.
- cora - this is the optional graphical user interface, which
acts as a graphical front-end to cora_fit, and significantly
facilitates the use of the latter. Basically, with cora you can:
- browse the spectrum and interactively choose lines to fit
- interactively set all parameters required by
cora_fit,
- easily switch between different parameter settings,
- call cora_fit with the currently selected parameter
settings
- obtain updated parameters and graphical output (i.e. plots).
- cora_inp - this is a helper application that writes a
parameter file (see below) that is specifically adapted to a particular
spectrum. This program is useful if you do not use the GUI. It is
also used by the GUI itself.
- cora_spec - creates an artificial spectrum
with a few lines; for testing purposes.
- cora_rgs - converts a fits data file in the format returned by the
XMM SAS task rgsproc into a CORA file
- cora_tex - converts the log file into a LATEX table
- cora_ftex - same as cora_tex calculating fluxes from given effective areas
- cora_flux - creates a data file in the CORA format with fluxes
using a given file with effective areas (two columns: wavelengths, area in
cm
) and exposure time.
In addition, two scripts are provided with the package.
- cora_setup.ksh and cora_setup.tcsh can be modified according
to your system and executed in order to set environment variables. This
customizes the installation.
- cora_rgspipe.sh will reduce XMM-RGS data using the SAS software.
The user has to modify environment variables indicating where SAS is
installed and where the data to be processed are located. In addition
cora_epic.sh does the reduction of MOS and PN data; these scripts are
the collection of personal experience.
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Jan-Uwe Ness
2003-05-23