16840

We request a Chandra observation (80 ks) of two very rare objects that fall within the same field of viewdoublePoint the strong intermediate-mass black hole candidate ESO 243-49 HLX-1 and a newborn hard tidal disruption event (TDE). For HLX-1 comma which has been in a prolonged low state for nearly 4 yr comma the data will be crucial to measure the current level of the low state and test two competing models for the formation of the system. Five HST orbits are also requested to pin down the host population and age by measuring the host in UV and optical when the contamination from the central source is minimal. For the new hard TDE comma our goal is to constrain its long-term X-ray evolution comma especially to detect the fast drop comma which would be a strong indicator of a jet being shut off.