Neutral versus ionized gas kinematics at z~2.6: The AGN-host starburst galaxy PKS 0529-549

Understand

We present a multiwavelength study of the AGN-host starburst galaxy PKS 0529-549 at z~2.6.

• We use (1) new ALMA observations of the dust continuum and of the [CI] 370 um line, tracing molecular gas, (2) SINFONI spectroscopy of the [OIII] 5007 Ang line, tracing ionized gas, and (3) ATCA radio continuum images, tracing synchrotron emission.
• Both [CI] and [OIII] show regular velocity gradients, but their systemic velocities and position angles differ by ~300 km/s and ~30 degrees, respectively.
• The [CI] is consistent with a rotating disc, aligned with the dust and stellar continuum, while the [OIII] likely traces an outflow, aligned with two AGN-driven radio lobes.