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MODSOURCE
[WEEDS\]MODSOURCE MODFILE ANTSIZE [/BACKGROUND TBG] [/VERBOSE]
Model the emission of a source at the local thermodynamic equilibrium
(LTE). The model paramaters (column density, kinetic temperature, source
size, line width and velocity offset for each species) are read from
MODFILE. The modeled antenna temperature is stored in the TA_MODEL memo-
ry. For convenience the current spectra is also stored in a memory, OBS,
so one can easily overplot the result of the model on the observed spec-
tra.
Arguments:
MODFILE the name of the file containing the parameters. The file
should one line per species with six columns containing
respectively:
1) The species name
2) The column density for this species in cm-2
3) The exitation temperature in K
4) The source size in arcsecs
5) The offset velocity from the source VLSR, in km/s
6) The line FWHM in km/s
Lines that start with a "#" are treated as comments.
ANTSIZE the antenna size in meters
Options:
/BACKGROUND set the background temperature to TBG, in K. Default is
2.73.
/VERBOSE prints partition function, lines frequencies, upper level
energies and degeneracies, Einstein coefficients and opac-
ity at the line center.
Gildas manager
2011-09-07