TY - GEN AU - Castillo-Morales, A. AU - Schindler, S. PY - 2003 UR - http://hdl.handle.net/10481/29039 AB - Clusters of galaxies are used in a variety of ways to do cosmology. Some of them are presented here. Their X-ray emitting gas allows us to determine the baryon fraction, dark matter distribution and the matter density Ωm of the universe. Another... LA - eng KW - Galaxies KW - Clusters KW - X-ray KW - CHANDRA TI - Clusters of galaxies: a fundamental pillar of cosmology ER -