Titlebook: Lighthouses of the Universe: The Most Luminous Celestial Objects and Their Use for Cosmology; Proceedings of the M Marat Gilfanov,Rashid Su

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X-Ray Statistical Properties of the Central Cool Component in Clusters of Galaxies,, radiative cooling followed by inflow of Intra-Cluster Medium (ICM). However, recent XMM-Newton spectroscopy has shown no signatures of cooler gas phases below certain temperatures in typical CF clusters (AI795, Tamura et al. 2001; A1835, Peterson et al. 2001). This contradicts the conventional CF

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Constraining Cosmological Models with the Brightest Galaxy Clusters in the X-Ray Sky,th galactic latitude .deg and flux .x(0.1 - 2.4keV) . ergs s. cm. have been compiled. Gravitational masses have been deterrnined utilizing intracluster gas density profiles, derived mainly from ROSAT PSPC pointed observations, and gas temperatures, as published mainly from ASCA observations, assumin

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Far-Infrared and Submillimetre Lighthouses,ty galaxies. These sources can account for the background radiation observed in these wavebands. Three sources are identified with certainty with distant galaxies with measured redshifts. They are all hyperluminous, and are likely to be massive galaxies in which a significant fraction of their stell

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The Most Luminous Galaxies,ects has shown that they are advanced mergers of gas-rich spiral galaxies. Galaxy-galaxy collisions took place on all cosmological time-scales, and nearby mergers serve as local analogs to gain insight into the physical processes that lead to the formation and trans-formation of galaxies in the more

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What Triggers Radio Galaxies?,ortant clues come from studying those objects which have most recently been triggered. The newly discovered ‘Youth-Redshift Degeneracy’ for classical double radio galaxies means that the highest redshift objects in a flux-limited survey will be observed to be significantly younger (more recently tri

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