No X-Rays or Radio from the Nearest Black Holes and Implications for Future Searches

Antonio C. Rodriguez, Yvette Cendes, Kareem El-Badry +1

Astrometry from the Gaia mission was recently used to discover the two nearest known stellar-mass black holes (BHs), Gaia BH1 and Gaia BH2. Both systems contain $\sim 1M_{\odot }$…