Tracing the evolution of nearby early-type galaxies in low density environments. The ultraviolet view from GALEX
- Autor(en)
- R. Rampazzo, Francesca Annibali, A. Marino, Luciana Bianchi, A. Bressan, L. M. Buson, M. Clemens, P. Panuzzo, W. W. Zeilinger
- Abstrakt
We detected recent star formation in nearby early-type galaxies located in low density environments, with GALEX Ultraviolet (UV) imaging. Signatures of star formation may be present in the nucleus and in outer rings/arm like structures. Our study suggests that such star formation may be induced by different triggering mechanisms, such as the inner secular evolution driven by bars, and minor accretion phenomena. We investigate the nature of the (FUV-NUV) color vs. Mg2 correlation, and suggest that it relates to "downsizing" in galaxy formation.
- Organisation(en)
- Institut für Astrophysik, Department für Neurowissenschaften und Entwicklungsbiologie
- Externe Organisation(en)
- INAF - Osservatorio Astronomico di Padova, Johns Hopkins University, Université Paris Saclay, Universität Wien
- Journal
- Astrophysics and Space Science
- Band
- 335
- Seiten
- 201-206
- Anzahl der Seiten
- 6
- ISSN
- 0004-640X
- DOI
- https://doi.org/10.1007/s10509-010-0586-5
- Publikationsdatum
- 09-2011
- Peer-reviewed
- Ja
- ÖFOS 2012
- 103003 Astronomie, 103004 Astrophysik
- Schlagwörter
- ASJC Scopus Sachgebiete
- Astronomy and Astrophysics, Space and Planetary Science
- Link zum Portal
- https://ucrisportal.univie.ac.at/de/publications/56e1850d-cc62-4e63-b5db-a3f0eb1e9004