Conveners
Star formation close to the SMBH in the Galactic Centre and other galactic nuclei
- Jorge Cuadra (Universidad Católica de Chile)
Star formation close to the SMBH in the Galactic Centre and other galactic nuclei
- Sergei Nayakshin (University of Leicester)
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Sergei Nayakshin (University of Leicester)18/03/2013, 16:20HighlightThe centre of the Milky Way presents a unique environment in which to study AGN activity and its effects on the host galaxy. As is well known, the central parsec of the Galaxy hosted a significant episode of star formation some 5 million years ago. It has thus been suggested that a massive gas cloud (or two) fell into the centre of the Galaxy, got bound to Sgr A*, formed a disc and collapsed...Go to contribution page
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Diederik Kruijssen (MPA Garching)18/03/2013, 17:05TalkIt was recently found that the SFR in the Central Molecular Zone (CMZ, i.e. the central 500 pc) of the Milky Way is lower by a factor of 10-100 than expected for the substantial amount of dense gas it contains, which challenges existing star formation (SF) theories. I show that in terms of properties unrelated to SF activity, the CMZ follows several of the scaling relations that hold for...Go to contribution page
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Jens Thomas (Max-Planck-Institut für extraterrestrische Physik)18/03/2013, 17:30HighlightBased on new SINFONI observations, ten black hole masses occupying the high-mass regime of the M-sigma relation are presented, which are more massive than predicted by recent M-sigma and M-Lum relations. The effect of dark matter inclusion on the black hole masses is explored. In seven of the ten galaxies and in about 15 other galaxies we identified shallow central cores and the properties of...Go to contribution page
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Tobias Fritz (MPE)19/03/2013, 09:00TalkI will present recent results for the nuclear cluster of Milky Way. Thereby, I concentrate on the old stars which dominate the mass budget. Firstly, I show a star density map of the cluster and use it to give a new estimate for its size. Secondly, I present an estimate for its mass from Jeans modeling using 23000 velocities. Finally, I relate these two properties with each other and with...Go to contribution page
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Oliver Pfuhl (MPE)19/03/2013, 09:25TalkI will present the star formation history of the Milky Way's nuclear star cluster. We used spectroscopically derived temperatures of 450 cool giant stars within 1 pc from Sgr A* to construct a Hertzsprung–Russell diagram of the Galactic Center stellar population. By fitting the observed diagram with model populations we were able to derive the star formation history of the nuclear...Go to contribution page
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Eric Emsellem (ESO)19/03/2013, 09:50TalkWe have conducted a very high resolution simulation of a Milky-Way like galaxy including star formation, radiative feedback, etc. This AMR simulation follows all scales from the dark matter halo down to 0.05pc simultaneously (i.e., not a zoomed-in re-simulation). I will present results focused on the turbulence, central fueling, star-formation regimes, in the 200pc region around the...Go to contribution page
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Javiera Guedes (ETH Zurich)19/03/2013, 10:15TalkIn this work we use Eris, a high resolution cosmological simulation of the formation of a Milky Way-like late-type galaxy, to study the details of the formation and evolution of pseudobulges. We find that the pseudobulge forms early and its evolution is tightly interconnected with the evolution of the stellar bar, which is in turn affected by gas accretion and minor merger activity.Go to contribution page