ELLPROF task¶
This task can be used to calculate the radial density profile of a galaxy.
Parameters¶
ELLPROF [false]. This flag enables the radial profile task.
Parameters for the task are: RADII, NRADII, RADSEP, XPOS, YPOS, PA, INC, SIDE (see 3DFIT). If FITSFILE is a datacube, the profile is calculated from the column density map calculated after masking the cube accordingly to the MASK parameter. If FITSFILE is a 2D intensity map, this is used to extract the profile.
Outputs¶
The task produces the following outputs. NAME is the name of the galaxy.
A FITS file NAME_densmap.fits with the map used to extract the profile.
A text file NAME_densprof.txt, containing with the radial profiles.
Example¶
An example parameter
file to extract the radial profile from the usual NGC2403 datacube
, given a set of rings.
FITSFILE ngc2403.fits
/////////// ELLPROF parameters /////////////
ELLPROF true
// Input rings
NRADII 41
RADSEP 30
XPOS 77
YPOS 77
INC 60
PA 123.7
// Mask for extracting intensity map
MASK SEARCH
// Which side of the galaxy
SIDE B
///////////////////////////////////////////