Two characteristics of thick disks formed through minor mergers: Orbital eccentricities and stellar excess
P. Di Matteo1a, Y. Qu1,2, M.D. Lehnert1 and W. van Driel1
1 GEPI, Observatoire de Paris, CNRS, Université Paris Diderot, 5 place Jules Janssen, 92190 Meudon, France
2 Institute for Computational Cosmology, Department of Physics, Durham University, Science Laboratories, South Rd, Durham DH1 3LE, UK
a e-mail: email@example.com
Published online: 07 February 2012
In this contribution, we will present two results we have recently obtained in studying the impact of satellite(s) accretions on stellar disks, and that concern: (1) the distribution of the eccentricities of stars in thick disks; (2) the characteristics of the vertical surface density profiles of thick disks, and in particular the presence of a “stellar excess” at great heights (z>2kpc) from the galaxy mid-plane.
© Owned by the authors, published by EDP Sciences, 2012