Workshop: Gas Dynamics and Star Formation in the Extreme Environment of Galactic Nuclei, Ringberg

Session

Astrophysical jets

21 Mar 2013, 09:00

Ringberg

Conveners

Astrophysical jets

• Andrea Merloni (MPE)

Astrophysical jets

• Andrea Merloni (MPE)

31. Radio galaxies and star formation (R)

Martin Hardcastle (University of Hertfordshire)

21/03/2013, 09:00

Review

I will discuss the relationship between radio-loud AGN activity and star formation, based on recent large-scale studies of star-formation activity in radio galaxy together with detailed studies of individual systems carried out over many years. It is clear that radio jets can have a dramatic impact on all phases of gas in the central regions of the host galaxy, but the detailed relationship...

32. AGN in an inhomogeneous interstellar medium

Volker Gaibler (ITA, University of Heidelberg)

21/03/2013, 09:45

Talk

It is well known that the interstellar medium of galaxies has a highly complex structure. Yet, hydrodynamical simulations of active galactic nuclei have only recently started to actually take into account the strongly inhomogeneous nature of the ISM that they are interacting with. I will present recent simulation results on how nuclear black hole activity can enhance or trigger...

33. Jet-environment interactions in the Milky Way and other spiral galaxies

Dr Martin Krause (TUM / MPE)

21/03/2013, 10:10

Talk

After the detection of the 10 kpc diameter high-energy lobes above and below the Milky Way, the Milky Way's jets have recently been directly seen in Gamma rays, X-rays and in the radio band. I will report our recent simulations on the interactions of jets with the hot gas, which leads to collimation and determines the kpc-scale morphology, and also with molecular clouds close to the Galactic...

34. Molecular hydrogen emission in radio galaxies: the role of accretion and jet feedback

Julia Scharwaechter (Observatoire de Paris, LERMA)

21/03/2013, 11:05

Talk

A detailed knowledge of the properties of the multi-phase ISM is crucial for constraining models of AGN accretion and feedback. Both accretion and jet feedback are possible energy sources for driving shocks and turbulence in the molecular gas component. Our recent study of the near-infrared molecular hydrogen (H_2) emission in the central ~300 pc of NGC 1275 (Perseus A) suggests a scenario...

35. Evidence for a large-scale helical magnetic field in the quasar 3C 454.3

Mohammad Zamaninasab (Max-Plack-Institut fuer Radioastronomie)

21/03/2013, 11:30

Talk

Most current theoretical models relate launching of relativistic jets from active galac- tic nuclei to the presence of twisted magnetic fields close to the supermassive black hole. While these models predict a large-scale, ordered, helical magnetic field near the central engine, it is not clear if, and to what extent, this order is preserved further downstream in the jet. Here we present the...