0000000000711475

AUTHOR

Joanna Popiela

showing 2 related works from this author

Investigation of the orientation of galaxies in clusters: the importance, methods and results of research

2018

Various models of structure formation can account for various aspects of the galaxy formation process on different scales, as well as for various observational features of structures. Thus, the investigation of galaxies orientation constitute a standard test of galaxies formation scenarios since observed variations in angular momentum represent fundamental constraints for any model of galaxy formation. We have improved the method of analysis of the alignment of galaxies in clusters. Now, the method allowed analysis both position angles of galaxy major axes and two angles describing the spatial orientation of galaxies. The distributions of analyzed angles were tested for isotropy by applying…

PhysicsAngular momentumStructure formation010308 nuclear & particles physicsIsotropyFOS: Physical sciencesAstronomy and AstrophysicsAstrophysics::Cosmology and Extragalactic AstrophysicsAstrophysicsgalaxy formationAstrophysics - Astrophysics of Galaxies01 natural sciencesGalaxyAstrophysics of Galaxies (astro-ph.GA)Orientation (geometry)0103 physical sciencesgalaxy clustersGalaxy formation and evolutionAstrophysics::Galaxy AstrophysicsGalaxy clusterStatistical hypothesis testingJournal of Cosmology and Astroparticle Physics
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Luminosity function for galaxy clusters

2014

AbstractWe constructed and studied the luminosity function of 6188 galaxy clusters. This was performed by counting brightness of galaxies belonging to clusters in the PF catalogue, taking galaxy data from MRSS. Our result shows that the investigated structures are characterized by a luminosity function different from that of optical galaxies and radiogalaxies (Machalski & Godłowski 2000). The implications of this result for theories of galaxy formation are briefly discussed.

PhysicsAstronomy and AstrophysicsAstrophysics::Cosmology and Extragalactic AstrophysicsAstrophysicsGalaxy mergerLuminosityBarred spiral galaxyGalaxy groups and clustersSpace and Planetary ScienceGalaxy groupInteracting galaxyLenticular galaxyAstrophysics::Galaxy AstrophysicsLuminosity function (astronomy)Proceedings of the International Astronomical Union
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