ar X iv : a st ro - p h / 05 06 57 5 v 1 2 3 Ju n 20 05 The Arches Cluster - Evidence for a Truncated Mass Function ? 1

ar X iv : a st ro - p h / 05 06 21 3 v 2 2 9 Ju l 2 00 5 The Formation Histories of Galaxy Clusters

A sample of hundreds of simulated galaxy clusters is used to study the statistical properties of galaxy cluster formation. Individual assembly histories are discussed, the degree of virialization is demonstrated and various commonly used formation times are measured and inter-compared. In addition, the fraction of clusters which have “recently” undergone a major merger or significant mass jump ...

ar X iv : a st ro - p h / 05 06 29 8 v 1 1 4 Ju n 20 05 The application of slim disk models to ULX : the case of M 33 X - 8

A comparative XMM-Newton archival data spectral study of the ultraluminous Xray source (ULX) M33 X-8 has been performed by using both the standard disk model and the newly developed slim disk models. The results of this analysis tend to confirm the hypothesis that M33 X-8 is an X-ray binary with a stellar-mass black hole accreting at super-Eddington rate.

ar X iv : a st ro - p h / 05 06 61 9 v 1 2 5 Ju n 20 05 1 An approach toward the successful supernova explosion by physics of unstable nuclei

We study the explosion mechanism of collapse-driven supernovae by numerical simulations with a new nuclear EOS based on unstable nuclei. We report new results of simulations of general relativistic hydrodynamics together with the Boltzmann neutrino-transport in spherical symmetry. We adopt the new data set of relativistic EOS and the conventional set of EOS (Lattimer-Swesty EOS) to examine the ...

ar X iv : a st ro - p h / 04 06 56 7 v 1 2 4 Ju n 20 04 1

ar X iv : h ep - t h / 05 06 19 5 v 1 2 3 Ju n 20 05 Geometric transitions and mixed Hodge structures

We formulate and prove a B-model disc level large N duality result for general conifold transitions between compact Calabi-Yau spaces using degenerations of Hodge structures.