Reference

im-mowjsub

im-mowjsub [OPTIONS] File

Options

--version

Show the version and exit.

--output-prefix <str>

Name of ouput image

--mask-image <File>

Mask image

--sigma-clip <float,float,...>

Sigma clip for each iteration. Only required if mask-image is not given.

--automask-per-iter, --no-automask-per-iter

Generate a new mask per iteration.

--fit-model <str>

Fit function to model the continuum. The ‘scipy-median-filter’ model is much faster than ‘median-filter’, but treats band edges and masked channels differently, so the two do not give identical continuum models. WARNING: A median-filter continuum model may subsume low SNR line emission, use it with great care.

Options:

b-spline | spline | polynomial | median-filter | scipy-median-filter | gcv-spline

--order <int>

Order of spline/polynomial or number of top coefficients to use for DCT reconstruction

--vel-width <float>

Width of spline segments or median filter window in km/s.

--chan-width <int>

Width of spline segments or median filter window in number of channels.

--gcv-lambda <float>

GCV spline penalty. Zero is equivalent to an interpolating spline, high values lead to a flatter curve. If unset the parameter will be estimated using the GCV criterion; this can be very slow. Experience suggests that values chanwidth/nchan work best.

--segments <float>

## This has been replaced by –vel-width. It will be removed in future releases ## Width of spline segments or median filter window in km/s. If given as a list, then it must have same size as –order.

--cont-fit-tol <float>

Minimum percentage of valid spectrum data points required to do a fit. Spectra below this tolerance will be set to NaN. Leaving this unset may result in poor or NaN spectra in the output cubes

--overwrite, --no-overwrite

Overwrite output image if it already exists

--stokes-index <int>

Index of stokes channel (zero-based) to use.

--rest-freq <float>

Cube rest frequency in MHz. Will ignore the one in the FITS header if it exists.

--stokes-axis, --no-stokes-axis

### DEPRECATED #### Set this flag if the input image has a stokes dimension. (Default is True).

-hi, --hdu-index <int>

FITS primary HDU index

--ra-chunks <int>

Chunking along RA-axis. If set to zero, no Chunking is perfomed.

--nworkers <int>

Number of parallel worker threads (roughly one per CPU core). Runtime for fitting-bound models scales with this, so raise it to speed up large cubes.

--loglevel <str>

Log level for the output

Options:

info | debug | trace | error | critical

Arguments

File

Required argument