Le 20 mars 2018
De 12h45 à 13h45

Bernd Vollmer (ObAS)  Thick turbulent gas disks with magnetocentrifugal winds in active galactic...

Du 18 juin 2018 au 22 juin 2018
Strasbourg, France

"The co-evolution of galaxies and the intergalactic medium during the first billion years of the...

Accueil   >   Recherche   >   Séminaires et réunions   >   Séminaires internes : Self-consistent models of our Galaxy in the Gaia era

Self-consistent models of our Galaxy in the Gaia era

Le 9 mars 2018
De 10h30 à 12h00

Eugene Vasiliev



I present an approach for constructing self-consistent dynamical models of our Galaxy based on distribution functions (DF) in the action space. The parameters of the DF are adjusted to match observed rotation curve and distribution of stars in the Solar neighborhood, and the gravitational potential is computed from the DF iteratively. With a dozen or so parameters, we have a complete description of an axisymmetric approximation of the Galaxy in dynamical equilibrium, which may be used to construct N-body models, serve as the basis for perturbation theory for non-axisymmetric modes, and much more.

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févr. 23 2018

 The nature of the massive Be star with strong and hard X-ray emission, gamma  Cassiopae, remains...

mars 12 2018

L'observatoire astronomique de Strasbourg a participé à l'événement Ose la Recherche organisé par...

févr. 5 2018

Une image multi-couleur extrêmement profonde du Télescope Canada-France-Hawaii (CFHT) apporte une...