Introducing the BRAHMA simulation suite: Signatures of low mass black hole seeding models in cosmological simulations

Understand

The first "seeds" of supermassive black holes (BH) can range from $\sim10^2-10^6~M_{\odot}$.

• However, the lowest mass seeds ($\lesssim10^3 M_{\odot}$) are inaccessible to most cosmological simulations due to resolution limitations.
• We present our new BRAHMA suite of cosmological simulations that uses a novel flexible seeding approach to represent low mass seeds.
• Our suite consists of two types of boxes that model $\sim10^3~M_{\odot}$ seeds using two distinct but mutually consistent seeding prescriptions at different simulation resolutions.