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| Paper: |
The Local LIRG NGC 5135: AGN and SN Activity Traced by NIR IFU Spectroscopy |
| Volume: |
446, Galaxy Evolution: Infrared to Millimeter Wavelength Perspective |
| Page: |
83 |
| Authors: |
Bedregal, A. G.; Colina, L.; Azzollini, R.; Arribas, S.; Alonso-Herrero, A. |
| Abstract: |
By observing the local luminous infrared galaxy NGC 5135 with the near-IR IFU spectrograph SINFONI (ESO VLT), we report a ∼ 600 pc (in projection) AGN outflow traced by [SiVI]λ1.96 μm emission. This is the largest outflow traced by a coronal line ever reported. Its large spatial scale suggests that shocks, in addition to AGN continuum emission, are needed to locally produce [SiVI] emission. We also show, for the first time, clear kinematical evidence of the AGN-outflow vs. ISM interaction through variations in the 2D velocity fields of different gas phases. Such local perturbations in the kinematics clearly match the outflow structure.
We use the [FeII]λ1.64 μm emission, a supernovae tracer, to estimate the supernovae rate in different star-forming knots (∼ 250 pc across) within the central 2.3 kpc of NGC 5135. The estimated supernovae rates go from 0.02–0.08 yr–1 being in excellent agreement with predictions from 6 cm radio emission in the same areas. |
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