|
| 04/26/02
| |
Bournaud Frederic |
Observatoire de Paris |
| 61 Av. de l'Observatoire | SF2A- PNG- |
|
75014 |
Paris, France |
Presentation 1 : Poster
Formation and properties of polar ring galaxies
Bournaud F., Combes F.
Polar ring galaxies are peculiar systems that show two nearly orthogonal
components. Two formation scenarios for polar rings have been proposed:
galaxy mergers and tidal accretion. They are studied through
numerical simulations. Comparison with observations and constraints
on physical parameters show that the accretion accretion is the most
trustworthy. The interpretation of observational data in the light of
numerical models may also constrain the shape of the dark halo in polar
ring galaxies.