The task “task_contobs” is for generating continuum image. A “wavelen” flag has to be specified by the simulated wavelength, of which the unit could be “A”, “nm”, “um”, “mm”, “cm”, “m” etc. $ sparx run task_contobs \ source=model out=cont_map \…
Post-processing: Viewing the image and tau map
Viewing the image by using MIRIAD The MIRIAD image would be generated if MIRIAD is installed while compiling SPARX. Once the image is produced, the channel map could be checked out by using the command. $ cgdisp in=MAPFILE device=/xs options=wedge,3val…
Post-processing: Line imaging / LTE line imaging
To generate the molecular line image, we should specify the line ID. For an example $ sparx run task_lineobs \ source=pops out=map \ dist=’1kpc’ \ cell=”[‘1asec’, ‘1asec’]” npix=”[100,100]” \ chan=”[64,’0.05kms^-1′]” line=0 sparx: Key ‘overlap’ not given, using default=”0kms^-1″ sparx: Key…
Post-processing: General flag
The common options of the image-mapping process contains the names of I/O files source The input HDF file name. The input file could be population data or the pure model data when operating LTE / continuum / column density mapping…
The Post-processing : Image Generation
There are the post-processing tools to yield non-LTE/LTE molecular line or Zeeman effect (Stokes V) image, the continuum emission map, and the column density image. SPARX provides four types of command : “task_lineobs”, “task_zeeman”, “task_contobs”, and “task_coldens”. Check the usage…
The non-LTE solver : AMC
The solver “task_amc”, named by the algorithm AMC (advanced Monte-Carlo method), is used for solving non-LTE molecular level populations. The user can check the command options by using “sparx help” with the task name $ sparx help task_amc Name: task_amc…
The Preprocessor: PRESPARX
The command “presparx” can show the usage $ presparx presparx -o < Output File > -e : error estimation -p : profile plot -v : generate vtk file -o : the filename of the HDF data for SPARX input -e…