Jet–ISM Interaction in NGC 1167/B2 0258+35, an LINER with an AGN Past

Abstract We report the results of joint Chandra/ACIS—NuSTAR deep observations NGC 1167, host galaxy young radio jet B2 0258+35. In ACIS data, we detect X-ray emission, extended both along and orthogonal to jet. At end southeast jet, find lower-energy emission that coincides with a region CO turbulence fast outflow motions. This suggests hot interstellar medium (ISM) may be compressed by molecular outflow, resulting in more efficient cooling. Hydrodynamic simulations jet–ISM interaction tailored 1167 are agreement this conclusion overall morphology spectra emission. The faint hard nuclear source detected Chandra stringent NuSTAR upper limits on harder show active galactic nucleus (AGN) is very low-accretion state. However, characteristics consonant those luminous Compton-thick (CT) AGNs, suggesting observing remnants past high accretion rate episode, sustained strong activity lasting ?2 × 10 3 yr. conclude NGC1167 presently Low-Ionization Nuclear Emission-line Region (LINER) , but was an AGN past, given properties their similarity CT