Light Curves

Filters are defined by their own classes in PISCOLA: Lightcurve and Lightcurves.

Lightcurve

This class represents a single light curve:

import piscola

sn = piscola.call_sn('03D1au')
lightcurve = sn.lcs.Megacam_g
print(lightcurve)

band: Megacam_g, zp: -20.846, mag_sys: AB

Each light curve will contain information about the observed data, such as time, fluxes, errors, etc.:

This class represents a single light curve:

lightcurve.__dict__

{'band': 'Megacam_g',
 'time': array([52880.58, 52900.49, 52904.6 , 52908.53, 52930.39, 52934.53,
        52937.55, 52944.39, 52961.45, 52964.37, 52992.33, 52999.32]),
 'flux': array([-1.85848101e-20,  1.70044129e-18,  1.89317266e-18,  1.85866457e-18,
         4.68383103e-19,  3.39987304e-19,  3.07085307e-19,  1.45787510e-19,
         1.58865710e-19,  8.00752930e-20,  8.87940928e-20,  2.56975152e-21]),
 'flux_err': array([3.93722644e-20, 9.87059915e-20, 5.70393061e-20, 5.37353399e-20,
        4.80910642e-20, 4.34563338e-20, 7.37426910e-20, 8.37463666e-20,
        7.89280825e-20, 5.21292452e-20, 6.20411439e-20, 5.51119925e-20]),
 'zp': -20.845742237479524,
 'mag': array([        nan, 23.57785366, 23.4612822 , 23.48125521, 24.97775471,
        25.32560101, 25.43611017, 26.24495696, 26.15168234, 26.89551142,
        26.78329758, 30.62952993]),
 'mag_err': array([        nan,  0.06302403,  0.03271209,  0.03138942,  0.11147757,
         0.13877611,  0.26072595,  0.62369171,  0.53941833,  0.70681738,
         0.75861258, 23.28516396]),
 'mag_sys': 'AB'}

For information about the available functions, check the Light Curves Class.

Lightcurves

This is a class that wraps the single light curves into a single class:

lightcurves = sn.lcs
lightcurves.__dict__

{'bands': ['Megacam_g', 'Megacam_r', 'Megacam_i', 'Megacam_z'],
 'Megacam_g': band: Megacam_g, zp: -20.846, mag_sys: AB,
 'Megacam_i': band: Megacam_i, zp: -21.834, mag_sys: AB,
 'Megacam_r': band: Megacam_r, zp: -21.398, mag_sys: AB,
 'Megacam_z': band: Megacam_z, zp: -22.144, mag_sys: AB}

For information about the available functions, check the Light Curves Class.