97 citations · 196 across the 11 of their papers we have counts for
11 papers
Far-infrared line emission from the outer Galaxy cluster Gy 3-7 with SOFIA/FIFI-LS: Physical conditions and UV fields
N. Le, A. Karska, M. Figueira +13
(abridged) Far-infrared (FIR) line emission provides key information about the gas cooling and heating due to shocks and UV radiation associated with the early stages of star forma…
Multiple stellar populations in Schwarzschild modeling and the application to the Fornax dwarf
Klaudia Kowalczyk, Ewa L. Lokas
Dwarf spheroidal (dSph) galaxies are believed to be strongly dark matter dominated and thus are considered perfect objects to study dark matter distribution and test theories of st…
Schwarzschild dynamical model of the Fornax dwarf spheroidal galaxy
Klaudia Kowalczyk, Andrés del Pino, Ewa L. Lokas +1
We present a full dynamical model of the Fornax dwarf spheroidal galaxy obtained with the spherically symmetric Schwarzschild orbit superposition method applied to the largest kine…
The effect of non-sphericity on mass and anisotropy measurements in dSph galaxies with Schwarzschild method
Klaudia Kowalczyk, Ewa L. Lokas, Monica Valluri
In our previous work we confirmed the reliability of the spherically symmetric Schwarzschild orbit-superposition method to recover the mass and velocity anisotropy profiles of sphe…
Recovering the mass profile and orbit anisotropy of mock dwarf galaxies with Schwarzschild modelling
Klaudia Kowalczyk, Ewa L. Lokas, Monica Valluri
We present a new study concerning the application of the Schwarzschild orbit superposition method to model spherical galaxies. The method aims to recover the mass and the orbit ani…
Orbit anisotropy of dark matter haloes with Schwarzschild modelling
Klaudia Kowalczyk, Ewa L. Lokas, Monica Valluri
We apply the Schwarzschild orbit superposition method to mock data in order to investigate the accuracy of recovering the profile of the orbit anisotropy. The mock data come from f…
Estimating masses of dwarf spheroidal galaxies
Klaudia Kowalczyk, Ewa L. Lokas
Precise measurements of mass in dark matter dominated dwarf spheroidal galaxies are of great importance for testing the theories of structure formation. We use -body simulations…
Adventures of a tidally induced bar
E. L. Lokas, E. Athanassoula, V. P. Debattista +5
Using N-body simulations, we study the properties of a bar induced in a dwarf galaxy as a result of tidal interaction with the Milky Way. The dwarf is initially composed of a disk…
Stellar populations in tidally stirred dwarf galaxies
Ewa L. Lokas, Klaudia Kowalczyk, Stelios Kazantzidis
Using N-body simulations we study the evolution of separate stellar populations in dwarf galaxies in the context of the tidal stirring scenario for the formation of dwarf spheroida…
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 Optical Gravitational Lensing Experiment. Optical Counterparts to the X-ray Sources in the Galactic Bulge
A. Udalski, K. Kowalczyk, I. Soszynski +9
We present a sample of 209 variable objects - very likely optical counterparts to the X-ray sources detected in the direction of the Galactic center by the Galactic Bulge Survey (G…