The Fundamental Plane of Early-Type Galaxies
EAS Publications Series EDP Sciences 48 (2011) 411-412
The SAURON project - XVIII. The integrated UV-line-strength relations of early-type galaxies
Monthly Notices of the Royal Astronomical Society (2011)
The Atlas3D project -- I. A volume-limited sample of 260 nearby early-type galaxies: science goals and selection criteria
(2010)
Investigating the merger origin of early-type galaxies using ultra-deep optical images
Proceedings of the International Astronomical Union 6:S277 (2010) 238-241
Abstract:
The mass assembly of galaxies leaves various imprints on their surroundings, such as shells, streams and tidal tails. The frequency and properties of these fine structures depend on the mechanism driving the mass assembly: e.g. a monolithic collapse, rapid cold-gas accretion followed by violent disk instabilities, minor mergers or major dry/wet mergers. Therefore, by studying the outskirts of galaxies, one can learn about their main formation mechanism. I present here our on-going work to characterize the outskirts of Early-Type Galaxies (ETGs), which are powerful probes at low redshift of the hierarchical mass assembly of galaxies. This work relies on ultra-deep optical images obtained at CFHT with the wide-field of view MegaCam camera of field and cluster ETGs obtained as part of the ATLAS3D and NGVS projects. State of the art numerical simulations are used to interpret the data. The images reveal a wealth of unknown faint structures at levels as faint as 29 mag arcsec-2 in the g-band. Initial results for two galaxies are presented here. © Copyright International Astronomical Union 2011.Molecular gas and star formation in local early-type galaxies
Proceedings of the International Astronomical Union 6:S277 (2010) 55-58