The UV images of GALEX revealed that ~30% of Early Type Galaxies (ETG) show UV emission indicating a rejuvenation episode. In ETGs with multiple spin components this percentage increases at 50%. We present here the characteristics of this sample and our smooth particle hydrodynamic (SPH) simulations with chemo-photometric implementation that provide dynamical and morphological information together with the spectral energy distribution (SED) at each evolutionary stage. We show our match of the global properties of two ETGs (e.g. NGC 3626 and NGC 5173). For these galaxies we can trace their evolutionary path.
@article{arxiv.1401.4382,
title = {The UV view of multi spin galaxies: insight from SPH simulations},
author = {Daniela Bettoni and Paola Mazzei and Antonina Marino and Roberto Rampazzo and Giuseppe Galletta and Lucio M. Buson},
journal= {arXiv preprint arXiv:1401.4382},
year = {2014}
}
Comments
4 pages 2 figures, to be published in the proceedings of the conference "Multi-Spin Galaxies" held in Napoli in October 2013