Ewa Luiza Lokas

Address:
Nicolaus Copernicus Astronomical Center
ul. Bartycka 18
00-716 Warsaw, POLAND
tel.: (48 22) 841 00 41 ext. 130
fax: (48 22) 841 00 46

Publications

Refereed papers

• Lokas, E. L. 1995, "Positive frequency solutions of the Klein-Gordon equation in the n-dimensional de Sitter spacetime", Acta Physica Polonica B, 26, 19
• Lokas, E. L., Juszkiewicz, R., Weinberg, D. H. & Bouchet, F. R. 1995, "Kurtosis of large-scale cosmic fields", MNRAS, 274, 730
• Lokas, E. L., Juszkiewicz, R., Bouchet, F. R. & Hivon, E. 1996, "Previrialization: perturbative and N-body results", ApJ, 467, 1
• Chodorowski, M. J. & Lokas, E. L. 1997, "The weakly nonlinear density-velocity relation", MNRAS, 287, 591
• Lokas, E. L. 1998, "Evolution of peaks in weakly nonlinear density field and dark halo profiles", MNRAS, 296, 491
• Chodorowski, M. J., Lokas, E. L., Pollo, A. & Nusser, A. 1998, "Recovery of the cosmological peculiar velocity from the density field in the weakly nonlinear regime", MNRAS, 300, 1027
• Bernardeau, F., Chodorowski, M. J., Lokas, E. L., Stompor, R. & Kudlicki, A. 1999, "Nonlinearity and stochasticity in the density-velocity relation", MNRAS, 309, 543
• Lokas, E. L. 2000, "Universal profile of dark matter halos and the spherical infall model", MNRAS, 311, 423
• Lokas, E. L. & Hoffman, Y. 2000, "Formation of cuspy density profiles - a generic feature of collisionless gravitational collapse", ApJL, 542, 139
• Lokas, E. L. & Mamon, G. A. 2001, "Properties of spherical galaxies and clusters with an NFW density profile", MNRAS, 321, 155
• Lokas, E. L. 2001, "Velocity dispersions of dwarf spheroidal galaxies: dark matter versus MOND", MNRAS, 327, 21P
• Lokas, E. L. 2002, "Dark matter distribution in dwarf spheroidal galaxies", MNRAS, 333, 697
• Lokas, E. L. & Mamon, G. A. 2003, "Dark matter distribution in the Coma cluster from galaxy kinematics: breaking the mass-anisotropy degeneracy", MNRAS, 343, 401
• Gottloeber, S., Lokas, E. L., Klypin, A. A., & Hoffman, Y. 2003, "The structure of voids", MNRAS, 344, 715
• Sanchis, T., Lokas, E. L., & Mamon, G. A. 2004, "The reliability of the kinematical evidence for dark matter: the effects of non-sphericity, substructure and streaming motions", MNRAS, 347, 1198
• Lokas, E. L., Bode, P., & Hoffman, Y. 2004, "Cluster mass functions in the quintessential Universe", MNRAS, 349, 595
• Wojtak, R., Lokas, E. L., Gottloeber, S., & Mamon, G. A., 2005, "Radial velocity moments of dark matter haloes", MNRAS, 361, L1
• Mamon, G. A., & Lokas, E. L. 2005, "Dark matter in elliptical galaxies - I. Is the total mass density profile of the NFW form or even steeper? ", MNRAS, 362, 95
• Mamon, G. A., & Lokas, E. L. 2005, "Dark matter in elliptical galaxies - II. Weighing the dark matter component", MNRAS, 363, 705
• Lokas, E. L., Mamon, G. A., & Prada, F. 2005, "Dark matter distribution in the Draco dwarf from velocity moments", MNRAS, 363, 918
• Lokas, E. L., Prada, F., Wojtak, R., Moles, M., & Gottloeber, S., 2006, "The complex velocity distribution of galaxies in Abell 1689: implications for mass modelling ", MNRAS, 366, L26
• Lokas, E. L., Wojtak, R., Gottloeber, S., Mamon, G. A., & Prada, F., 2006, "Mass distribution in nearby Abell clusters", MNRAS, 367, 1463
• Wojtak, R., Lokas, E. L., Mamon, G. A., Gottloeber, S., Prada, F., & Moles, M., 2006, "Interloper treatment in dynamical modelling of galaxy clusters", A&A, in press
• Wojtak, R., & Lokas, E. L., 2006, "The importance of interloper removal in galaxy clusters: saving more objects for the Jeans analysis", MNRAS, in press
• Klimentowski, J., Lokas, E. L., Kazantzidis, S., Prada, F., Mayer, L., Mamon, G. A., 2006, "Mass modelling of dwarf spheroidal galaxies: the effect of unbound stars from tidal tails and the Milky Way", submitted to MNRAS
• Sanchez-Conde, M. A., Prada, F., Lokas, E. L., Gomez, M. E., Wojtak, R., Moles, M., 2007, "Dark Matter annihilation in Draco: new considerations of the expected gamma flux", submitted to JCAP

Conference proceedings

• Lokas, E. L., Juszkiewicz, R., Weinberg, D. H. & Bouchet, F. R. 1995, "Higher moments of large-scale cosmic fields", in: "International workshop on large-scale structure in the universe", ed. by Muecket et al. (World Scientific), 177
• Lokas, E. L. 1998, "Halo profiles from weakly nonlinear initial conditions", in: "Galactic Halos: A UC Santa Cruz Workshop ", ed. by D. Zaritsky (ASP Conference Series), 433
• Lokas, E. L. 2000, "Density profiles of galactic dark halos", in: "Proceedings of the XXXIVth Rencontres de Moriond, Building the Galaxies", ed. by F. Hammer et al. (Editions Frontieres), 423
• Lokas, E. L. 2000, "Evolution of density profiles of dark matter halos", in: "Proceedings of the Rencontres Internationales de l'IGRAP, Clustering at High Redshift", ed. by A. Mazure et al. (ASP Conference Series), 428
• Lokas, E. L. & Hoffman, Y. 2001, "The spherical collapse model in a universe with cosmological constant", in: "Proceedings of the 3rd International Workshop on the Identification of Dark Matter", ed. by N. J. C. Spooner & V. Kudryavtsev (World Scientific), 121
• Lokas, E. L. & Mamon, G. A. 2001, "Properties of galaxies with universal density profile", in: "The Evolution of Galaxies", ed. by J. M. Vilchez, G. Stasinska & E. Perez, Astrophysics and Space Science 277 (Suppl.), 477
• Lokas, E. L. 2001, "Structure formation in the quintessential Universe", Acta Physica Polonica B, 32, 3643
• Gottloeber, S., Lokas, E. L. & Klypin, A. A. 2003, "Low mass dark matter halos in voids", in: Proceedings of the Cozumel conference "Galaxy Evolution: Theory and Observations", RevMexAA (Serie de Conferencias), 17, 22
• Lokas, E. L. 2003, "Dark matter in dwarf spheroidal galaxies", in: Proceedings of the Cozumel conference "Galaxy Evolution: Theory and Observations", RevMexAA (Serie de Conferencias), 17, 38
• Mamon, G. A., Lokas, E. L. & Sanchis, T. 2004, "Breaking the mass/anisotropy degeneracy in the Coma cluster", in: "Outskirts of galaxy clusters: intense life in the suburbs", Proceedings of the IAU Colloquium 195, ed. by A. Diaferio, 413
• Mamon, G. A., & Lokas, E. L. 2004, "LCDM dark matter in elliptical galaxies?", in: Proceedings of SF2A 2004 meeting, ed. by F. Combes et al., 691
• Lokas, E. L., Mamon, G. A., & Prada, F. 2006, "The Draco dwarf in CDM and MOND", in: Proceedings of the XXIst IAP Colloquium "Mass Profiles and Shapes of Cosmological Structures", ed. by G. Mamon et al., EAS, 20, 113
• Wojtak, R., Lokas, E. L., Gottloeber, S., & Mamon, G. A., 2006, "Velocity moments of dark matter haloes", in: Proceedings of the XXIst IAP Colloquium "Mass Profiles and Shapes of Cosmological Structures", ed. by G. Mamon et al., EAS, 20, 301
• Mamon, G. A., Lokas, E. L., Dekel, A., Stoehr, F., & Cox, T. J., 2006, "Kinematical and dynamical modeling of elliptical galaxies", in: Proceedings of the XXIst IAP Colloquium "Mass Profiles and Shapes of Cosmological Structures", ed. by G. Mamon et al., EAS, 20, 139
• Sanchez-Conde, M. A., Prada, F., Lokas, E. L., 2006, "Dark Matter in Draco: new considerations of the expected gamma flux in IACTs", in: Proceedings of the Madrid workshop "The dark side of the Universe", AIP Conference Proceedings, 878, 125

The papers (ps or other formats) can be obtained from here and published versions from here.

 Popular papers (in Polish)

• Lokas, E. L., "Co to sa czarne dziury?", Urania, wrzesien 1994
• Lokas, E. L., "Czego nie widac", Wiedza i Zycie, czerwiec 1995
• Lokas, E. L., "Wielkoskalowa struktura Wszechswiata", Wiedza i Zycie, lipiec 1995
• Lokas, E. L., "Ciemna materia we Wszechswiecie", Wiedza i Zycie, pazdziernik 1998
• Lokas, E. L., "The dark side of galaxies"("Ciemna strona Wszechświata"), Academia, 4/2005 English Polski
• Lokas, E. L., "Ciemna materia przez soczewke", Wiedza i Zycie, kwiecien 2006