Illuminating the Black Hole – Galaxy Connection with CANDELS

by Dale Kocevski

Galaxies have long been known to segregate into populations of blue, star forming disks and passive red spheroids, but how this bimodality is established remains one of the key unanswered questions in astronomy today. Prevailing theories have proposed that supermassive black holes (BH) play an integral role in this process by regulating the growth of their host galaxies and eventually suppressing their star formation activity. I will discuss my work using multi-wavelength observations to study the key properties of galaxies undergoing active BH growth, such as their star formation histories, morphologies, and environments. In particular, I will highlight recent results from the CANDELS survey, which is using the new Wide Field Camera 3 (WFC3) on the Hubble Space Telescope to extend the detailed study of galaxy properties to z~2, the era when nuclear activity and star formation activity in the Universe are at their peak. With an allotment of 900 orbits, CANDELS is the largest project ever undertaken in the history of Hubble. I will discuss what the survey is currently revealing about the connection between BH growth and emergence of passive galaxies in the early Universe.