PetrosianCorrection

class petrofit.petrosian.PetrosianCorrection(grid, enforce_range=True)[source]

This class computes corrections for Petrosian given default Petrosian measurements.

Parameters:

gridstr: Correction grid generated by petrofit.correction.generate_petrosian_sersic_correction. Use PetrosianCorrection.read(file_path) to read grid from file.
enforce_rangebool: If true, the nearest approximation is returned. If false, an assertion will be applied that makes sure that the profiles to be corrected are covered by the correction grid.

Attributes Summary

Methods Summary

`correct`(p)
`estimate_epsilon`(p)	Given the half light radius and c2080 computed using the default epsilon value, return a corrected epsilon value.
`estimate_n`(p)	Given the half light radius and c2080 computed using the default epsilon value, return an estimated sersic index n.
`filter_grid`(key, value)
`plot_correction`(p[, cmap, target_c, ...])
`read`(grid_file[, file_format])	Read grid from file.
`unique_grid_values`(key)
`write`(grid_file[, file_format])	Write grid to file.

Attributes Documentation

Methods Documentation

estimate_epsilon(p)[source]: Given the half light radius and c2080 computed using the default epsilon value, return a corrected epsilon value.

estimate_n(p)[source]: Given the half light radius and c2080 computed using the default epsilon value, return an estimated sersic index n.

plot_correction(p, cmap='hot', target_c='blue', cmap_key='n', colorbar_label=None, suptitle=None, axs=None)[source]

classmethod read(grid_file, file_format=None)[source]: Read grid from file.