2 papers
astro-ph2000
Radial arc statistics: A new powerful probe of the central density profile of galaxy clusters
Kohji Molikawa, Makoto Hattori
We show that an expected number ratio of radial arcs (gravitationally lensed images whose major axes lie in the radial direction of a cluster-lens potential) to tangential arcs (gr…
astro-ph1999
The giant luminous arc Statistics. II. spherical lens models based on ROSAT HRI data
Kohji Molikawa, Makoto Hattori, Jean-Paul Kneib +1
We present ROSAT HRI X-ray observations of all the galaxy clusters in the Le Fèvre et al. arc survey sample in order to study the spatial distribution of the intra-cluster medium,…