332 citations · 576 across the 24 of their papers we have counts for
6 papers · 1 filter
Properties of the X-ray pulsar GX 301-2 in hard X-rays
V. Borkus, A. Kaniovsky, R. Sunyaev +5
In 1993-1994 a series of observations of the X-ray pulsar GX 301-2 by HEXE onboard Mir-Kvant was made. A period of pulsations was measured (it varied between 675 and 678 s) and pul…
Hipparcos Positioning of Geminga : How and Why
P. A. Caraveo, M. G. Lattanzi, G. Massone +4
Accuracy in the absolute position in the sky is one of the limiting factors for pulsar timing, and timing parameters have a direct impact on the understanding of the physics of Iso…
COMPTEL gamma-ray study of the Crab nebula
R. D. van der Meulen, H. Bloemen, K. Bennett +6
We report on a study of the gamma-ray continuum emission from the Crab supernova nebula and on a search for nuclear de-excitation gamma-ray lines. Crab is the brightest continuum s…
On Arcs and Omega
Matthias Bartelmann, Andreas Huss, Joerg M. Colberg +2
The gravitational lens effect of galaxy clusters can produce large arcs from source galaxies in their background. Typical source redshifts of ~ 1 require clusters at z ~ 0.3 for ar…
Arc statistics with realistic cluster potentials. IV. Clusters in different cosmologies
Matthias Bartelmann, Andreas Huss, Joerg M. Colberg +2
We use numerical simulations of galaxy clusters in different cosmologies to study their ability to form large arcs. The cosmological models are: Standard CDM (SCDM; Omega_0=1, Omeg…
The Formation and Evolution of Clusters of Galaxies in Different Cosmogonies
A. Huss, B. Jain, M. Steinmetz
The formation of galaxy clusters in hierarchically clustering universes is investigated by means of high resolution N-body simulations. The simulations are performed using a newly…