We examine the fundamental scaling relations of elliptical galaxies formed through mergers. Using hundreds of simulations to judge the impact of progenitor galaxy properties on the properties of merger remnants, we find that gas dissipation provides an important contribution to tilt in the Fundamental Plane relation. Dissipationless mergers of disks produce remnants that occupy a plane similar ...

this study aims to investigate the effective factors on non-development of tourism industry in golestan province. the standard questionnaires are used to doing this descriptive, cross-sectional and tentative that those be scattered after measuring their validity and reliability based on simple-random sampling(for tourists) and taxonomy-sampling(for experts) between tourists and experts. the ana...