169 citations · 597 across the 13 of their papers we have counts for
13 papers
The major merger origin of the Andromeda II kinematics
Ivana Ebrová, Ewa L. Łokas, Sylvain Fouquet +1
Prolate rotation (i.e. rotation around the long axis) has been reported for two Local Group dwarf galaxies: Andromeda II, a dwarf spheroidal satellite of M31, and Phoenix, a transi…
The structure of Andromeda II dwarf spheroidal galaxy
Andrés del Pino, Ewa L. Lokas, Sebastian L. Hidalgo +1
We analyze in detail the spatial distribution and kinematic properties of two different stellar populations in Andromeda II (And II) dwarf spheroidal galaxy. We obtained their deta…
Formation of Andromeda II via a gas-rich major merger and an interaction with M31
Sylvain Fouquet, Ewa L. Lokas, Andres del Pino +1
Andromeda II (And II) has been known for a few decades but only recently observations have unveiled new properties of this dwarf spheroidal galaxy. The presence of two stellar popu…
Tidally induced bars of galaxies in clusters
Ewa L. Lokas, Ivana Ebrova, Andres del Pino +5
Using N-body simulations we study the formation and evolution of tidally induced bars in disky galaxies in clusters. Our progenitor is a massive, late-type galaxy similar to the Mi…
Co-orbiting satellite galaxy structures are still in conflict with the distribution of primordial dwarf galaxies
Marcel S. Pawlowski, Benoit Famaey, Helmut Jerjen +11
Both major galaxies in the Local Group host planar distributions of co-orbiting satellite galaxies, the Vast Polar Structure (VPOS) of the Milky Way and the Great Plane of Andromed…
The vast thin plane of M31 co-rotating dwarfs: an additional fossil signature of the M31 merger and of its considerable impact in the whole Local Group
François Hammer, Yanbin Yang, Sylvain Fouquet +5
The recent discovery by Ibata et al. (2013) of a vast thin disk of satellites (VTDS) around M31 offers a new challenge for the understanding of the Local Group properties. This com…
A possible impact near the Milky Way of a former major merger in the Local Group
Sylvain Fouquet, François Hammer, Yanbin Yang +2
The Milky Way (MW) dwarf system presents two exceptional features, namely it forms a thick plane called the Vast Polar Structure (VPOS), and the two biggest dwarves, the Magellanic…
Does the dwarf galaxy system of the Milky Way originate from Andromeda?
Sylvain Fouquet, François Hammer, Yanbin Yang +2
The Local Group is often seen to be a quiescent environment without significant merger events. However an ancient major merger may have occurred in the most massive galaxy. Numeric…
The Milky Way and other spiral galaxies
F. Hammer, M. Puech, H. Flores +3
Cosmologists have often considered the Milky Way as a typical spiral galaxy, and its properties have considerably influenced the current scheme of galaxy formation. Here we compare…
Could M31 be the result of a major merger?
Sylvain Fouquet, François Hammer, Yang-Bin Yang +3
We investigated a scenario in which M31 could be the remnant of a gas-rich major merger. Galaxy merger simulations, highly constrained by observations, were run using GADGET 2 in o…
The Formation of Large Galactic Disks: Revival or Survival?
F. Hammer, M. Puech, H. Flores +5
Using the deepest and the most complete set of observations of distant galaxies, we investigate how extended disks could have formed. Observations include spatially-resolved kinema…
Could M31 come from a major merger and eject the LMC away?
S. Fouquet, F. Hammer, Y. B. Yang +3
We investigated a scenario in which M31 could be the remnant of a major merger and at the origin of the LMC. Galaxy merger simulations were run in order to reproduce some M31 prope…
Does M31 result from an ancient major merger?
F. Hammer, Y. B. Yang, J. L. Wang +3
The numerous streams in the M31 halo are currently assumed to be due to multiple minor mergers. Here we use the GADGET2 simulation code to test whether M31 could have experienced a…