Generates and writes full GALFIT input .feedme parameter file. Any unset values will be left as the GALFIT defaults (see param/galfit/galfit.feedme) :param feedme_path: Path to write parameter file to. :param input_file: Path to input image FITS file.

Corresponds to item A) in the GALFIT feedme definition.

Parameters¶

output_file: str¶

Path to write output image block FITS file. Corresponds to item B) in the GALFIT feedme definition.

zeropoint: Quantity¶

Path to write output image block FITS file. Corresponds to item J) in the GALFIT feedme definition.

plate_scale: tuple[float, float] | float¶

The pixel scale of the image, in arcsec / pixel. If provided as a tuple: (plate_scale_x, plate_scale_y) Corresponds to item I) in the GALFIT feedme definition.

sigma_file: str | None = None¶

Path to sigma image, if used. GALFIT is quite good at generating these internally. Corresponds to item C) in the GALFIT feedme definition.

psf_file: str | None = None¶

Path to input PSF image. Corresponds to item D) in the GALFIT feedme definition.

psf_fine_sampling: int | None = None¶

PSF fine sampling factor relative to data; ie, if the PSF image has double the resolution, psf_fine_sampling is 2. GALFIT only understands integers for this value. Corresponds to item E) in the GALFIT feedme definition.

mask_file: str | None = None¶

Path to pixel mask file, a FITS image or ASCII coord list. Corresponds to item F) in the GALFIT feedme definition.

constraint_file: str | None = None¶

Path to file with parameter constraints (ASCII file). Corresponds to item G) in the GALFIT feedme definition.

fitting_region_margins: tuple[int, int, int, int] = (1, 93, 1, 93)¶

Image region to fit (xmin xmax ymin ymax) in pixels. Corresponds to item H) in the GALFIT feedme definition.

convolution_size: tuple[int, int] | int = (100, 100)¶

Size of the convolution box (x y) in pixels. Corresponds to item I) in the GALFIT feedme definition.

display_type: str = 'regular'¶

regular, curses or both. I don’t actually know what this does. Corresponds to item O) in the GALFIT feedme definition.

run_type: str | int = 0¶

optimize, model, imgblock or subcomps, in that order.

models: list[dict] = {}¶

List of dicts containing model initial guesses, excluding sky.

sky_model_init: dict | None = None¶

A model for the sky. Not required as GALFIT finds this pretty easily.

Returns¶

List of strings corresponding to lines in a .feedme input file, suitable for use with open().writelines().