A new challenge: Bar formation and secular evolution in lenticular galaxies |
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| Authors: | Dimitri Alexei Gadotti Ronaldo Eustáquio de Souza |
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| Institution: | 1. Departamento de Astronomia, Instituto de Astronomia, Geofísica e Ciěncias Atmosféricas, Universidade de S?o Paulo, Rua do Mat?o, 1226, Cid. Univers, CEP 05508-900, S?o Paulo, SP, Brasil
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| Abstract: | To further enhance our understanding on the formation and evolution of bars in lenticular (S0) galaxies, we are undertaking
a detailed photometric and spectroscopic study on a sample of 22 objects. Here we report the results of a 2D structural analysis
on two barred face-on S0's, which indicate that presently these galaxies do not possess disks. We discuss two possibilities
to explain these surprising results, namely strong secular evolution and bar formation without disks.
This revised version was published online in August 2006 with corrections to the Cover Date. |
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| Keywords: | galaxies: evolution galaxies: structure methods: N-body simulations |
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