dark matter

Looking for dark matter with the world’s most sensitive radio

Aug 25, 2023
Since the 1960s there has been plenty of evidence to support the existence of dark matter through astrophysical and cosmological observations, and at this point we’re very confident that it exists. The question remains, though: what is dark matter actually made of? Weakly interacting massive particles (WIMPs)? Neutrinos? Primordial black holes? Or none of the above?

The connection between supermassive black holes and dark matter halos

Jul 6, 2023
At the center of each galaxy lurks a supermassive black hole (SMBH). These black holes grow during phases of extreme accretion when nearby gas and dust fall into their deep gravitational wells, which we observe as active galactic nuclei (AGN). Zooming out to much greater distances, halos of dark matter surround each galaxy, extending millions of light-years. But while various galaxy properties are known to correlate with SMBHs and their dark matter halos separately, the black hole - dark matter halo connection has been less explored. How does the dark matter environment of a galaxy impact the growth and coevolution of its central supermassive black hole?