pynucastro.rates.starlib_rate module

pynucastro.rates.starlib_rate module#

Classes and methods for describing a reaction rate that is tabulated in terms of and temperature.along with corresponding uncertainties as per the StarLib Library

class pynucastro.rates.starlib_rate.StarLibRate(log_t9_data, log_rate_data, sigma_data, labelprops, seed=None, label='starlib', **kwargs)[source]#

Bases: TemperatureTabularRate

A rate whose temperature dependence and factor uncertainty are tabulated. Upon creation of an instance, rates at all tabulated log(T9) values are sampled.

Parameters:

  • log_t9_data (numpy.ndarray) – The temperature (in log(T / 1.e9 K)) where we tabulate the rate

  • log_rate_data (numpy.ndarray) – The tabulated log(rate) data, N_A <σv>

  • sigma_data (numpy.ndarray) – The tabulated log(uncertainty) data

  • seed (int) – Seed to pass to rng for rate sampling

sample_rates(seed=None)[source]#

Sample rate values as median_rate + N(0,1)*sigma for each of the 60 entries in the data for a Starlib rate.

Parameters:

seed (int) – Seed for the rng necessary to sample rates. If seed is none, the method returns median rates.