Radiation Sources

Radioactivity

Radioactivity Parameters
parameter values definition
maximum_half_life_seconds <real> the largest acceptable half life (in seconds). Radioactive nuclei with half-lives larger than this will not undergo decay
parent_isotopes_to_use <string> of isotopes in the form “Z1.A1 Z2.A2 … Zn.An” select the earliest nuclei to consider for each decay chain you would like to include. Nuclei that are earlier in each decay chain will not undergo decay
force_rprocess_heating 0 = no | 1 = yes force the simulation to include r-process heating
partial_rprocess_heating ? ?

Thermal Emission

Radiating Core

Radiating Core Parameters
parameter values definition
core_n_emit <integer> Number of particles to emit from core per time step (or iteration)
core_radius <real> Radius (in cm) of emitting spherical core
core_luminosity <real> or <function> Luminosity (in erg/s) emitted from core
core_temperature <real> Blackbody spectrum of core emission, if using blackbody emission
core_photon_frequency <real> Frequency of photons emitted from core, if using monochromatic emission
core_timescale <real> ?
core_spectrum_file <string> filename of file to read to set spectrum of core emission
core_fix_luminosity 0 = no | 1 = yes In steady state calculations, will rescale to fix output luminosity
particles_max_total <float> maximum number of particles (photons) allowed on the grid at the same time
particles_n_emit_radioactive <integer> number of particles emitted through radioactivity per timestep
particles_n_emit_thermal <integer> number of thermal particles emitted per timestep
particles_n_initialize <integer> number of particles used to initialize the simulation
particles_n_emit_pointsources <integer>  
particles_pointsource_file <string>  
particles_last_iter_pump    
multiply_particles_n_emit_by_dt_over_dtmax 0 = no | 1 = yes  
force_rprocess_heating 0 = no | 1 = yes  

Multiple Point Sources