JADES. The diverse population of infant Black Holes at 4<z<11: merging, tiny, poor, but mighty

Understand

We present 12 new AGN at 4<z<7 in the JADES survey (in addition to the previously identified AGN in GN-z11 at z=10.6) revealed through the detection of a Broad Line Region as seen in Halpha.

• The depth of JADES, together with the use of three different spectral resolutions, enables us to probe a lower mass regime relative to previous studies.
• In a few cases we find evidence for two broad components of Halpha which suggests that these could be candidate merging black holes (BHs).
• The inferred BH masses range between 8 x 10^7 Msun down to 4 x 10^5 Msun, interestingly probing the regime expected for Direct Collapse Black Holes (DCBHs).