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Basic Information on odnh3
Task: odnh3
Purpose: Ammonia analysis program
Categories: map combination, map manipulation
ODNH3 is a MIRIAD task that creates optical depth and rotational
temperature maps from ammonia maps. Ammonia J,K=(1,1) emission
has five hyperfine components, one main hyperfine component, two
inner hyperfine components, and two outer hyperfine components.
Odnh3 takes a main hyperfine component map and either an inner
or outer hyperfine component map and combines the two maps to
make a single main hyperfine component optical depth map.
Odnh3 can also combine a J,K=(1,1) main hyperfine component
map, a J,K=(2,2) main hyperfine component map, and a J,K=(1,1)
main hyperfine component optical depth map to create a
rotational temperature map.
Any of the input maps can be masked to allow a signal-to-noise
cutoff.
Key: map1
Input map, main hyperfine component map of the J,K=(1,1) level.
No default.
Key: map2
Input map, depends on the option given (see "op" below).
No default.
Key: mapt
Input map required for op=temp. mapt is the J,K=(1,1) main
hyperfine component optical depth map. No default.
Key: mask
A mask expression using FORTRAN syntax. The optical depth or
rotational temperature is only calculated at pixels where the
mask is TRUE. Thus, this keyword can be used to enforce a
signal-to-noise cutoff on the input maps. No default.
Key: region
Standard keyword region. See the help on region for more information.
Key: op
The odnh3 option used:
taui: inner hyperfine component map of the J,K=(1,1) level.
tauo: outer hyperfine component map of the J,K=(1,1) level.
temp: main hyperfine component map of the J,K=(2,2) level.
No default.
Key: out
Name of the output image. No default.
Revision: 1.6, 2018/11/29 23:35:24 UTC
Generated by miriad@atnf.csiro.au on 30 Nov 2018