Research articles

search articles

My Pages

Stat

Members: 3645
Articles: 2'501'711
Articles rated: 2609

20 April 2024

» arxiv » 1102.0911

Article overview

Investigating the merger origin of Early-Type Galaxies using ultra-deep optical images
P.-A. Duc ; J.-C. Cuillandre ; K. Alatalo ; L. Blitz ; M. Bois ; F. Bournaud ; M. Bureau ; M. Cappellari ; P. Cote ; R. L. Davies ; T. A. Davis ; P. T. de Zeeuw ; E. Emsellem ; L. Ferrarese ; E. Ferriere ; S. Gwyn ; S. Khochfar ; D. Krajnovic ; H. Kuntschner ; P.-Y. Lablanche ; L. MacArthur ; R. M. McDermid ; L. Michel-Dansac ; R. Morganti ; T. Naab ; T. Oosterloo ; M. Sarzi ; N. Scott ; P. Serra ; A. Weijmans ; L. M. Young ;
Date:	4 Feb 2011
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 Atlas-3D 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.
Source:	arXiv, 1102.0911
Services:	Forum \| Review \| PDF \| Favorites

No review found.

Did you like this article?

This article or document is ...
important:
of broad interest:
readable:
new:
correct:
Global appreciation:

Note: answers to reviews or questions about the article must be posted in the forum section.
Authors are not allowed to review their own article. They can use the forum section.

browser Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)

ScienXe.org
» my Online CV
» Free

News, job offers and information for researchers and scientists:

home

contact

sitemap