Fossil Systems; a Multi-wavelength Approach towards Understanding Galaxy FormationReportar como inadecuado




Fossil Systems; a Multi-wavelength Approach towards Understanding Galaxy Formation - Descarga este documento en PDF. Documentación en PDF para descargar gratis. Disponible también para leer online.

School of Astronomy, Institute for Research in Fundamental Sciences IPM, 19395-5531 Tehran, Iran





*

Author to whom correspondence should be addressed.



Academic Editors: José Alfonso López Aguerri, Enrichetta Iodice and Alexei Moiseev

Abstract Fossil systems are understood to be the end product of galaxy mergers within groups and clusters. Their halo morphology points to their relaxed-virialised nature, thus allowing them to be employed as observational probes for the evolution of cosmic structures, their thermodynamics and dark matter distribution. Cosmological simulations, and their underlying models, are broadly consistent with the early formation epoch for fossils. In a series of studies we have looked into galaxy properties and intergalactic medium IGM in fossils, across a wide range of wavelengths, from X-ray through optical to the radio, to have a better understanding of their nature, the attributed halo age, IGM heating and their AGNs and use them as laboratories to constrain galaxy formation models. Adhering to one of less attended properties of fossils, using the the Millennium Simulation, we combine luminosity gap with luminosity segregation the brightest galaxy offset from the group luminosity centroid to identify the most dynamically relaxed galaxy groups which allows us to reveal brand new observational connections between galaxies and their environments. View Full-Text

Keywords: galaxies; galaxy groups; galaxy formation and evolution galaxies; galaxy groups; galaxy formation and evolution





Autor: Habib G. Khosroshahi * , Halime Miraghaei and Mojtaba Raouf

Fuente: http://mdpi.com/



DESCARGAR PDF




Documentos relacionados