redback.transient_models.afterglow_models.RedbackAfterglowsRefreshed

class redback.transient_models.afterglow_models.RedbackAfterglowsRefreshed(k, n, epsb, epse, g0, g1, ek, et, s1, thc, thj, tho, p, exp, time, freq, redshift, Dl, extra_structure_parameter_1, extra_structure_parameter_2, method='TH', res=100, steps=500, xiN=1)[source]

Bases: RedbackAfterglows

__init__(k, n, epsb, epse, g0, g1, ek, et, s1, thc, thj, tho, p, exp, time, freq, redshift, Dl, extra_structure_parameter_1, extra_structure_parameter_2, method='TH', res=100, steps=500, xiN=1)[source]

A general class for refreshed afterglow models implemented directly in redback. This class is not meant to be used directly but instead via the interface for each specific model. The afterglows are based on the method shown in Lamb, Mandel & Resmi 2018 and other papers. Script was originally written by En-Tzu Lin <entzulin@gapp.nthu.edu.tw> and Gavin Lamb <g.p.lamb@ljmu.ac.uk> and modified and implemented into redback by Nikhil Sarin <nsarin.astro@gmail.com>. Includes wind-like mediums, expansion and multiple jet structures.

Parameters:

  • k –

  • n – ISM, ambient number density

  • epsb – magnetic fraction

  • epse – electron fraction

  • g0 – initial Lorentz factor

  • g1 – Lorentz factor of shell at start of energy injection

  • ek – kinetic energy

  • et – factor by which total kinetic energy is larger

  • s1 – index for energy injection; typically between 0–10, some higher values, ~<30, are supported for some structures. Values of ~10 are consistent with a discrete shock interaction, see Lamb, Levan & Tanvir 2020

  • thc – core angle

  • thj – jet outer angle. For tophat jets thc=thj

  • tho – observers viewing angle

  • p – electron power-law index

  • exp – Boolean for whether to include sound speed expansion

  • time – lightcurve time steps

  • freq – lightcurve frequencies

  • redshift – source redshift

  • Dl – luminosity distance

  • extra_structure_parameter_1 – Extra structure specific parameter #1. Specifically, this parameter sets; The index on energy for power-law jets. The fractional energy contribution for the Double Gaussian (must be less than 1). The energy fraction for the outer sheath for two-component jets (must be less than 1). Unused for tophat or Gaussian jets.

  • extra_structure_parameter_2 – Extra structure specific parameter #2. Specifically, this parameter sets; The index on lorentz factor for power-law jets. The lorentz factor for second Gaussian (must be less than 1). The lorentz factor for the outer sheath for two-component jets (must be less than 1). Unused for tophat or Gaussian jets.

  • method – Type of jet structure to use. Defaults to ‘TH’ for tophat jet. Other options are ‘2C’, ‘GJ’, ‘PL’, ‘PL2’, ‘DG’. Corresponding to two component, gaussian jet, powerlaw, alternative powerlaw and double Gaussian.

  • res – resolution

  • steps – number of steps used to resolve Gamma and dm

  • XiN – fraction of electrons that get accelerated

__call__(**kwargs)

Call self as a function.

Methods

__init__(k, n, epsb, epse, g0, g1, ek, et, ...)

A general class for refreshed afterglow models implemented directly in redback.

calc_afterglow(G, SM, Dl, p, xp, Fx, EB, Ee, ...)

calc_afterglow_step1(G, dm, p, xp, Fx, EB, ...)

calc_afterglow_step2(Dl, Om0, rotstep, ...)

calc_erf_numba(x)

calc_lightcurve(time, tobs, Flux, nu_size, ...)

double_gaussian_beam(thi, thc, thj, s, a)

double_gaussian_lf(thi, thc, thj, s, a)

gaussian_beam(thi, thc)

get_ag(FBB, nuc, num, nu1, Fmax, p)

get_gamma(G0, Eps, therm, steps, n0, k)

get_gamma_refreshed(G0, G1, Eps, Eps2, s1, ...)

get_lightcurve()

get_obsangle(phii, thi, tho)

get_segments(thj, res)

get_structure(gamma, en, thi, thc, method, ...)