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We present new high spatial resolution Karl G. Jansky Very Large Array (VLA)HI absorption and Very Long Baseline Array (VLBA) continuum observations of theActive Galactic Nucleus (AGN)-driven molecular outflow candidate NGC 1266.Although other well-known systems with molecular outflows may be driven by starformation in a central molecular disk, the molecular mass outflow rate reportedin Alatalo et al. (2011) in NGC 1266 of 13 M$_{\odot}$ year$^{-1}$ exceeds starformation rate estimates from a variety of tracers. This suggests that anadditional energy source, such as an AGN, may play a significant role inpowering the outflow. Our high spatial resolution HI absorption data revealcompact absorption against the radio continuum core co-located with theputative AGN, and the presence of a blueshifted spectral component re-affirmsthat gas is indeed flowing out of the system. Our VLBA observations at 1.65 GHzreveal one continuum source within the densest portion of the molecular gas,with a diameter d < 8 mas (1.2 pc), a radio power $P_{\mathrm{rad}}$ = 1.48$\times$ 10$^{20}$ W Hz$^{-1}$, and a brightness temperature $T_{\mathrm{b}}$ >1.5 x 10$^7$ K that is most consistent with an AGN origin. The radio continuumenergetics implied by the compact VLBA source, as well as archival VLAcontinuum observations at lower spatial resolution, further support thepossibility that the AGN in NGC 1266 could be driving the molecular outflow.These findings suggest that even low-level AGNs may be able to launch massiveoutflows in their host galaxies.

Detection of a High Brightness Temperature Radio Core in the AGN-Driven Molecular Outflow Candidate NGC 1266