5. File Formats

5.1 Image Template List

Used in:

• simdata, parameter: inlist_ima
• prepimages, parameter: inlist

An ASCII list loadable with the AsciiData module. Lines starting with '#' are not loaded. The list must contain at least one column, and the first column has to be of type 'string'. NULL entries are not allowed in the first column. Data in possible further columns is not used. The entries must point to existing fits images which are located in the driecctory $AXE_SIMDATA_PATH.

5.2 Spectrum Template List

Used in:

• simdata, parameter: inlist_spec
• prepspectra, parameter: inlist

Similar to 5.1, but the entires must point to existing fits binary tables or ASCII tables in the directory $AXE_SIMDATA_PATH.

5.3 Total Passband File

Used in:

• simdata, parameter: tput_direct
• prepspectra, parameter: tpass_flux

A binary fits table with one extension or an ASCII table with two rows. The fits table must contain the two columns "wavelength" and "throughput". The column "wavelength" contains the wavelength positions in Angstrom in ascending order. The column "throughput" contains the system throughput associated to the wavelength in absolute numbers (range [0.0, 1.0]). An ASCII table must contain two columns, the first is the wavelength in Angstrom and the second the total throughput. The total throughput is the fraction of photons that is recorded on the detector at a given wavelength (in [%]). All optical components (mirrors, filters, entrance windows) and the detector efficiency contribute as factors to the total throughput.

5.4 Template Spectrum

Files listed in the Spectrum Template List (simdata, parameter: inlist_spec) are all Template Spectra

An ASCII or binary fits table. The table contains exactly two columns with float values. The first column contains the ascending wavelength positions in $[\AA]$. The second column contains the associated flux values in $[erg/s/cm^2/\AA]$. NULL elements are not allowed.

5.5 Template Image

Files listed in the Image Template List (simdata, parameter: inlist_ima) are all Template Images

A binary fits image with at most two extensions. In case of two extensions the first extension must be empty and the second contain the data. In case of one extension only this extension must contain data.

5.6 Model Images

Used in:

• output of simdata and prepimages
• simdispim, parameter: model_images
• simdirim, parameter: model_images

A multi-dimension binary fits image. Each extension contains one image with the integrated intensity 1.0.

5.7 Model Spectra

Used in:

• output of simdata and prepspectra
• simdispim, parameter: model_spectra
• simdirim, parameter: model_spectra

A multi-dimension binary fits table. Each extension contains a table with the two columns "wav_nm" $[nm]$ and "flux" $[erg/cm^2/s/\AA]$.

5.8 Model Object Table

Used in:

• simdata, parameter: incat
• simdispim, parameter: incat
• simdirim, parameter: incat

An ASCII table loadable with AsciiData module with a table header in the SExtractor format . The table has the mandatory columns:

• NUMBER the object identifier; int
• X_IMAGE the x-position of the object [pix]; float
• Y_IMAGE the y-position of the object [pix]; float
• A_IMAGE the major axis rms [pix]; float
• B_IMAGE the minor axis rms [pix]; float
• THETA_IMAGE the position angle of the major axis [deg]; float
• MAG_?<number>* the AB-magnitude at the wavelength $<$number$>$; float

There might be several columns with AB-magnitudes. If the task SIMDATA is run with non-empty parameter "spec_models", the columns:

• SPECTEMP which model spectrum to use; int
• Z redshift of object; float

are mandatory. If the task is run with the parameter "object_models", the column:

• MODIMAGE which image template to use; int

is mandatory. NULL entries are not allowed in the mandatory columns. Any further columns and table entries are not used.