Tibeuleu/FOC_Reduction
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add comparison to Kishimoto's pipeline and context for M87 and IC5063

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Thibault Barnouin
2023-06-28 16:50:49 +02:00
parent 998642ea7d
commit ff0fb4afd9
10 changed files with 47 additions and 11 deletions
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8
src/lib/reduction.py
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@@ -68,6 +68,9 @@ globals()['pol_efficiency'] = {'pol0' : 0.92, 'pol60' : 0.92, 'pol120' : 0.91}
globals()['theta'] = np.array([180.*np.pi/180., 60.*np.pi/180., 120.*np.pi/180.])
# Uncertainties on the orientation of the polarizers' axes taken to be 3deg (see Nota et. al 1996, p36; Robinson & Thomson 1995)
globals()['sigma_theta'] = np.array([3.*np.pi/180., 3.*np.pi/180., 3.*np.pi/180.])
# Image shift between polarizers as measured by Hodge (1995)
globals()['pol_shift'] = {'pol0' : np.array([0.,0.])*1., 'pol60' : np.array([3.63,-0.68])*1., 'pol120' : np.array([0.65,0.20])*1.}
globals()['sigma_shift'] = {'pol0' : [0.3,0.3], 'pol60' : [0.3,0.3], 'pol120' : [0.3,0.3]}
def princ_angle(ang):
@@ -598,7 +601,6 @@ def rebin_array(data_array, error_array, headers, pxsize, scale,
Dxy = image.shape/new_shape
if (Dxy < 1.).any():
raise ValueError("Requested pixel size is below resolution.")
new_shape = np.ceil(image.shape/Dxy).astype(int)
# Rebin data
rebin_data = bin_ndarray(image, new_shape=new_shape,
@@ -771,6 +773,10 @@ def align_data(data_array, headers, error_array=None, background=None,
if do_shift:
rescaled_image[i] = sc_shift(rescaled_image[i], shift, order=1, cval=0.)
rescaled_error[i] = sc_shift(rescaled_error[i], shift, order=1, cval=background[i])
else:
shift = pol_shift[headers[i]['filtnam1'].lower()]
rescaled_image[i] = sc_shift(rescaled_image[i], shift, order=1, cval=0.)
rescaled_error[i] = sc_shift(rescaled_error[i], shift, order=1, cval=background[i])
curr_mask = sc_shift(res_mask, shift, order=1, cval=False)
mask_vertex = clean_ROI(curr_mask)