Feedback

Particle-based Feedback

Flags

• SUPERNOVA - Supernova rate (SNR) information from a Starburst99 generated .snr file can be read in by specifying the path as the value of the snr_filename parameter. If this parameter is not set, then a default constant SNR is used. The default SNR corresponds to 1 supernova per $100 \mathrm{M}\odot$ of cluster mass, spread out over 36 Myr, and starting when the cluster is 4 Myr old. A sample Starburst99 file is included in the source code at src/particles/starburst99_snr.txt. The sample was generated for a $1\times10^6 \mathrm{M}\odot$ fixed mass cluster, with a Kroupa initial mass function, and an $8 \mathrm{M}_\odot$ supernova cutoff.
• PARTICLES_GPU - Particle-based feedback requires that the particle data be on the GPUs.
• PARTICLE_AGE - Feedback varies with cluster age.
• PARTICLE_IDS - Cluster IDs are used to prevent possible correlations or biases when generating random numbers used by the feedback algorithm.