307 citations · 1.9k across the 45 of their papers we have counts for
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Tidal Stirring of Disky Dwarfs with Shallow Dark Matter Density Profiles: Enhanced Transformation into Dwarf Spheroidals
Stelios Kazantzidis, Ewa L. Lokas, Lucio Mayer
(Abridged) The origin of dSphs in the Local Group (LG) remains an enigma. The tidal stirring model posits that late-type, rotationally-supported dwarfs resembling present-day dwarf…
Can we measure the slopes of density profiles in dwarf spheroidal galaxies?
Klaudia Kowalczyk, Ewa L. Lokas, Stelios Kazantzidis +1
Using collisionless N-body simulations of dwarf galaxies orbiting the Milky Way (MW) we construct realistic models of dwarf spheroidal (dSph) galaxies of the Local Group. The dwarf…
The shapes of Milky Way satellites: looking for signatures of tidal stirring
Ewa L. Lokas, Steven R. Majewski, Stelios Kazantzidis +4
We study the shapes of Milky Way satellites in the context of the tidal stirring scenario for the formation of dwarf spheroidal galaxies. The standard procedures used to measure sh…
Formation of Dwarf Spheroidal Galaxies Via Mergers of Disky Dwarfs
Stelios Kazantzidis, Ewa L. Lokas, Lucio Mayer +2
We perform collisionless N-body simulations to investigate whether binary mergers between rotationally-supported dwarfs can lead to the formation of dwarf spheroidal galaxies (dSph…
Evolutionary tracks of tidally stirred disky dwarf galaxies
Ewa L. Lokas, Stelios Kazantzidis, Lucio Mayer
Using collisionless N-body simulations, we investigate the tidal evolution of late-type, rotationally supported dwarfs inside Milky Way-sized host galaxies. Our study focuses on a…
On the Efficiency of the Tidal Stirring Mechanism for the Origin of Dwarf Spheroidals: Dependence on the Orbital and Structural Parameters of the Progenitor Disky Dwarfs
Stelios Kazantzidis, Ewa L. Lokas, Simone Callegari +2
(Abridged) The tidal stirring model posits the formation of dSph galaxies via the tidal interactions between rotationally-supported dwarfs and MW-sized host galaxies. Using a set o…
The inner structure and kinematics of the Sagittarius dwarf galaxy as a product of tidal stirring
Ewa L. Lokas, Stelios Kazantzidis, Steven R. Majewski +3
The tidal stirring model envisions the formation of dwarf spheroidal (dSph) galaxies in the Local Group via the tidal interaction of disky dwarf systems with a larger host galaxy l…
Mass profiles and galaxy orbits in nearby galaxy clusters from the analysis of the projected phase-space
Radoslaw Wojtak, Ewa L. Lokas
We analyze kinematic data of 41 nearby (z<0.1) relaxed galaxy clusters in terms of the projected phase-space density using a phenomenological, fully anisotropic model of the distri…
The grouping, merging and survival of subhaloes in the simulated Local Group
Jaroslaw Klimentowski, Ewa L. Lokas, Alexander Knebe +4
We use a simulation performed within the Constrained Local UniversE Simulation (CLUES) project to study a realistic Local Group-like object. We employ this group as a numerical lab…
The mass and anisotropy profiles of galaxy clusters from the projected phase space density: testing the method on simulated data
Radoslaw Wojtak, Ewa L. Lokas, Gary A. Mamon +1
We present a new method of constraining the mass and velocity anisotropy profiles of galaxy clusters from kinematic data. The method is based on a model of the phase space density…