An approximate theory for substructure propagation in clusters Export

@article{citeulike:3366680, abstract = {Aims.The existence of dark matter can be proved in an astrophysical context by the discovery of a system in which the observed baryons and the inferred dark matter are spatially segregated, such as the bullet cluster (1E0657-558). The full descriptions of the dark matter halo and X-ray gas substructure motions are necessary to forecast the location of the dark halo from X-ray maps, which can be confirmed by the detection of a galaxy concentration or by gravitational lensing. Methods: We present an analytical hydrodynamic model to determine the distance between the X-ray and dark-matter components and the Mach number of the merger shock. Results: An approximate solution is given for the problem of the substructure propagation in merging clusters. A new method to predict the position of a dark matter halo in clusters, where there is a separation between the X-ray gas and the dark halo, is proposed and applied to the clusters 1E0657-558 and Abell 1763.}, archivePrefix = {arXiv}, author = {Prokhorov, D. A. and Durret, F.}, citeulike-article-id = {3366680}, citeulike-linkout-0 = {http://arxiv.org/abs/0708.2166}, citeulike-linkout-1 = {http://arxiv.org/pdf/0708.2166}, citeulike-linkout-2 = {http://dx.doi.org/10.1051/0004-6361:20077542}, citeulike-linkout-3 = {http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=2007A&A...474..375P}, doi = {10.1051/0004-6361:20077542}, eprint = {0708.2166}, journal = {Astron. Astrophys.}, keywords = {bullet, methods, simualtion, substructure}, month = {November}, pages = {375--384}, posted-at = {2008-10-02 15:45:42}, priority = {2}, title = {An approximate theory for substructure propagation in clusters}, url = {http://dx.doi.org/10.1051/0004-6361:20077542}, volume = {474}, year = {2007} }

TY - JOUR ID - citeulike:3366680 L3 - citeulike-article-id:3366680 N2 - Aims.The existence of dark matter can be proved in an astrophysical context by the discovery of a system in which the observed baryons and the inferred dark matter are spatially segregated, such as the bullet cluster (1E0657-558). The full descriptions of the dark matter halo and X-ray gas substructure motions are necessary to forecast the location of the dark halo from X-ray maps, which can be confirmed by the detection of a galaxy concentration or by gravitational lensing. Methods: We present an analytical hydrodynamic model to determine the distance between the X-ray and dark-matter components and the Mach number of the merger shock. Results: An approximate solution is given for the problem of the substructure propagation in merging clusters. A new method to predict the position of a dark matter halo in clusters, where there is a separation between the X-ray gas and the dark halo, is proposed and applied to the clusters 1E0657-558 and Abell 1763. JF - Astron. Astrophys. EP - 384 TI - An approximate theory for substructure propagation in clusters VL - 474 SP - 375 KW - bullet KW - methods KW - simualtion KW - substructure AU - Prokhorov, DA AU - Durret, F PY - 2007/November// UR - http://dx.doi.org/10.1051/0004-6361:20077542 ER -