Description
With this update, parallel-projected instruments such as Frame and SED instruments add information on the observer sight line and model-observer distance to the output files, as a convenience to the user.
Specifically, FITS file headers now include additional keywords in the file header as in the following example:
CROTA1 = 4.500000000E+01 / Inclination angle, in deg
CROTA2 = 4.500000000E+01 / Azimuth angle, in deg
CROTA3 = 3.000000000E+01 / Roll angle, in deg
REDSHIFT= 2.000000000E+00 / Redshift (if zero, distances are equal)
DISTLUMI= 1.607026089E+04 / Luminosity distance
DISTANGD= 1.785584544E+03 / Angular diameter distance
DISTUNIT= 'Mpc ' / Units of distances
Similarly, SED column text files now include a header line as in the following example:
# SED at inclination 45 deg, azimuth 45 deg, redshift 2, luminosity distance 16070.26089 Mpc
Motivation
This information may facilitate automated processing of the SKIRT output without the need for referring to the ski file. The feature was suggested by user @djsavic.
Compatibility
The extra header line in SED column text files will break code that skips a predefined number of header lines rather than relying on the # prefix to skip all comment lines.
Description With this update, parallel-projected instruments such as Frame and SED instruments add information on the observer sight line and model-observer distance to the output files, as a convenience to the user.
Specifically, FITS file headers now include additional keywords in the file header as in the following example:
Similarly, SED column text files now include a header line as in the following example:
Motivation This information may facilitate automated processing of the SKIRT output without the need for referring to the ski file. The feature was suggested by user @djsavic.
Compatibility The extra header line in SED column text files will break code that skips a predefined number of header lines rather than relying on the
#prefix to skip all comment lines.