Setting up Filter Transmission Curves

To generate synthetic imaging data cubes using GalaxySynthesizer, user needs to specify list of filters and their transmission curves. The filters input is a list containing filter names (arbitrary) in string, whereas filter_transmission_path input is a Dictionary of paths to text files containing the transmission function. Keys are filter names (as listed in filters), values are file paths. Each text file has two columns: wavelength, transmission.

Alternatively, if you have piXedfit installed, you can set up these inputs easily using make_filter_transmission_text_pixedfit function. It will create a dictionary and text files containing the filter transmission curves taken from the internal piXedfit package. For this to work, you need to use filter naming in piXedfit. Below is an example script for this:

from galsyn.utils import make_filter_transmission_text_pixedfit

filters = ['hst_acs_f435w', 'hst_acs_f606w', 'hst_acs_f814w', 'hst_wfc3_ir_f110w', 'hst_wfc3_ir_f125w',
        'hst_wfc3_ir_f160w', 'jwst_nircam_f090w', 'jwst_nircam_f115w', 'jwst_nircam_f140m', 'jwst_nircam_f150w',
        'jwst_nircam_f200w', 'jwst_nircam_f250m', 'jwst_nircam_f277w', 'jwst_nircam_f335m', 'jwst_nircam_f356w',
        'jwst_nircam_f410m', 'jwst_nircam_f444w', 'jwst_nircam_f460m', 'jwst_nircam_f480m']

filter_transmission_path = make_filter_transmission_text_pixedfit(filters, output_dir="filters")