English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

We present a detailed study of the molecular gas in the fast AGN-drivenoutflow in the nearby radio-loud Seyfert galaxy IC 5063. Using ALMAobservations of a number of tracers (12CO(1-0), 12CO(2-1), 12CO(3-2), 13CO(2-1)and HCO+(4-3)), we map the differences in excitation, density and temperatureof the gas. The results show that in the immediate vicinity of the radio jet, afast outflow, with velocities up to 800 km/s, is occurring of which the gas hashigh excitation temperatures in the range 30-55 K, demonstrating the directimpact of the jet on the ISM. The relative brightness of the CO lines show thatthe outflow is optically thin. We estimate the mass of the molecular outflow tobe 1.2 x 10^6 Msol and likely to be a factor 2-3 larger. This is similar tothat of the outflow of atomic gas, but much larger than that of the ionisedoutflow, showing that the outflow is dominated by cold gas. The total massoutflow rate we estimate to be ~12 Msol/yr. The mass of the outflow is muchsmaller than the total gas mass of the ISM of IC 5063. Therefore, although theinfluence of the radio jet is very significant in the inner regions, globallyspeaking the impact will be very modest. We use RADEX modelling to explore thephysical conditions of the molecular gas in the outflow. Models with theoutflowing gas being quite clumpy give the most consistent results and ourpreferred solutions have kinetic temperatures in the range 20-100 K anddensities between 10^5 and 10^6 cm^-3. The resulting pressures are 10^6-10^7.5K cm^-3, about two orders of magnitude higher than in the outer quiescent disk.The results strongly suggest that the outflow is driven by the radio jetexpanding into a clumpy medium, creating a cocoon of gas which is pushed awayfrom the jet axis resulting in a lateral outflow, very similar to what ispredicted by numerical simulations.

Properties of the molecular gas in the fast outflow in the Seyfert galaxy IC 5063