Probing the mass assembly of massive nearby galaxies with deep imaging

From National Research Council Canada

DOI	Resolve DOI: https://doi.org/10.1017/S174392131300536X
Author	Search for: Duc, P.-A.; Search for: Cuillandre, J.-C.; Search for: Alatalo, K.; Search for: Blitz, L.; Search for: Bois, M.; Search for: Bournaud, F.; Search for: Bureau, M.; Search for: Cappellari, M.; Search for: Côté, P.¹; Search for: Davies, R. L.; Search for: Davis, T. A.; Search for: De Zeeuw, P. T.; Search for: Emsellem, E.; Search for: Ferrarese, L.¹; Search for: Ferriere, E.; Search for: Gwyn, S.¹; Search for: Khochfar, S.; Search for: Krajnovic, D.; Search for: Kuntschner, H.; Search for: Lablanche, P.-Y.; Search for: McDermid, R. M.; Search for: Michel-Dansac, L.; Search for: Morganti, R.; Search for: Naab, T.; Search for: Oosterloo, T.; Search for: Sarzi, M.; Search for: Scott, N.; Search for: Serra, P.; Search for: Weijmans, A.; Search for: Young, L. M.
Affiliation	National Research Council of Canada. National Science Infrastructure
Format	Text, Article
Conference	International Astronomical Union Symposium 295: The intriguing life of massive galaxies, August 27-31, 2012, Beijing, China
Abstract	According to a popular scenario supported by numerical models, the mass assembly and growth of massive galaxies, in particular the Early-Type Galaxies (ETGs), is, below a redshift of 1, mainly due to the accretion of multiple gas-poor satellites. In order to get observational evidence of the role played by minor dry mergers, we are obtaining extremely deep optical images of a complete volume limited sample of nearby ETGs. These observations, done with the CFHT as part of the ATLAS3D, NGVS and MATLAS projects, reach a stunning 28.5 - 29 mag.arcsec-2 surface brightness limit in the g' band. They allow us to detect the relics of past collisions such as faint stellar tidal tails as well as the very extended stellar halos which keep the memory of the last episodes of galactic accretion. Images and preliminary results from this on-going survey are presented, in particular a possible correlation between the fine structure index (which parametrizes the amount of tidal perturbation) of the ETGs, their stellar mass, effective radius and gas content.
Publication date	2012-07-17
In	The intriguing life of massive galaxies: 358–361. Proceedings of the International Astronomical Union.
Language	English
Peer reviewed	Yes
NPARC number	21270320
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Record identifier	bed0f7ef-93d9-4d2e-95a2-edec0e2b58d7
Record created	2014-01-24
Record modified	2020-04-21

Date modified:: 2024-04-20