def lbol_bc_bh09(self, filter1, filter2):
"""Calculate the bolometric lightcurve using the bolometric corrections
found in Bersten & Hamuy 2009 (2009ApJ...701..200B). These require
specifying a color, taken to be filter1 - filter2"""
self.get_magnitudes()
self.deredden_UBVRI_magnitudes()
self.get_bc_epochs(filter1, filter2)
self.distance_cm, self.distance_cm_err = self.get_distance_cm()
self.bc_lc = np.array([[0.0, 0.0, 0.0, 0.0, 0.0]])
for i in range(len(self.bc_epochs)):
jd = self.bc_epochs[i]
color = self.get_bc_color(jd, filter1, filter2)
color_err = self.get_bc_color_uncertainty(jd, filter1, filter2)
v_mag = np.array([
x['magnitude'] for x in self.photometry
if x['jd'] == jd and x['name'] == 'V'
])
v_mag_err = np.array([
x['uncertainty'] for x in self.photometry
if x['jd'] == jd and x['name'] == 'V'
])
lbol_bc, lbol_bc_err = calc_Lbol(
color, color_err, filter1 + "minus" + filter2, v_mag,
v_mag_err, self.distance_cm, self.distance_cm_err)
phase = jd - self.parameter_table.cols.explosion_JD[0]
phase_err = self.parameter_table.cols.explosion_JD_err[0]
self.bc_lc = np.append(
self.bc_lc, [[jd, phase, phase_err, lbol_bc, lbol_bc_err]],
axis=0)
self.bc_lc = np.delete(self.bc_lc, (0), axis=0)
self.write_lbol_plaintext(self.bc_lc, 'bc_' + filter1 + '-' + filter2)
def test_Lbol_is_bad_if_bc_is_bad(self):
color_value = 123.0
expected = -999
result = luminosity.calc_Lbol(color_value, self.color_err,
self.color_type, self.v_magnitude,
self.v_magnitude_err, self.distance,
self.distance_err)[0]
self.assertEqual(expected, result)
def test_Lbol_uncertainty_is_bad_if_bc_is_bad(self):
color_value = 123.0
expected = -999
result = luminosity.calc_Lbol(color_value, self.color_err,
self.color_type,
self.v_magnitude,
self.v_magnitude_err,
self.distance,
self.distance_err)[1]
self.assertEqual(expected, result)
def test_Lbol(self):
expected = luminosity.calc_Fbol(self.color_value, self.color_err,
self.color_type,
self.v_magnitude,
self.v_magnitude_err)[0] \
* luminosity.calc_4piDsquared(self.distance,
self.distance_err)[0]
result = luminosity.calc_Lbol(self.color_value, self.color_err,
self.color_type, self.v_magnitude,
self.v_magnitude_err, self.distance,
self.distance_err)[0]
self.assertAlmostEqual(expected, result)
def test_Lbol(self):
expected = luminosity.calc_Fbol(self.color_value, self.color_err,
self.color_type,
self.v_magnitude,
self.v_magnitude_err)[0] \
* luminosity.calc_4piDsquared(self.distance,
self.distance_err)[0]
result = luminosity.calc_Lbol(self.color_value, self.color_err,
self.color_type,
self.v_magnitude,
self.v_magnitude_err,
self.distance,
self.distance_err)[0]
self.assertAlmostEqual(expected, result)
def test_Lbol_uncertainty(self):
Fbol, Fbol_err = luminosity.calc_Fbol(self.color_value, self.color_err,
self.color_type,
self.v_magnitude,
self.v_magnitude_err)
dist, dist_err = luminosity.calc_4piDsquared(self.distance,
self.distance_err)
expected = math.sqrt((dist * Fbol_err)**2 + (Fbol * dist_err)**2)
result = luminosity.calc_Lbol(self.color_value, self.color_err,
self.color_type, self.v_magnitude,
self.v_magnitude_err, self.distance,
self.distance_err)[1]
self.assertEqual(expected, result)
def test_Lbol_uncertainty(self):
Fbol, Fbol_err = luminosity.calc_Fbol(self.color_value,
self.color_err,
self.color_type,
self.v_magnitude,
self.v_magnitude_err)
dist, dist_err = luminosity.calc_4piDsquared(self.distance,
self.distance_err)
expected = math.sqrt((dist * Fbol_err)**2 + (Fbol * dist_err)**2)
result = luminosity.calc_Lbol(self.color_value, self.color_err,
self.color_type,
self.v_magnitude,
self.v_magnitude_err,
self.distance,
self.distance_err)[1]
self.assertEqual(expected, result)