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Stellar Metallicities and SNIa Rates in the Early-type Galaxy NGC5846 from ROSAT and ASCA Observations
A. Finoguenov, C. Jones, W. Forman +1
In this paper we analyze the diffuse X-ray coronae surrounding the elliptical galaxy NGC5846, combining measurements from two observatories, ROSAT and ASCA. We map the gas temperat…
Constraining q_0 with Cluster Gas Mass Fractions: A Feasibility Study
K. Rines, W. Forman, U. Pen +2
As the largest gravitationally bound objects in the universe, clusters of galaxies may contain a fair sample of the baryonic mass fraction of the universe. Since the gas mass fract…
X-ray Detection of the Primary Lens Galaxy Cluster of the Gravitational Lens System Q0957+561
G. Chartas, D. Chuss, W. Forman +2
Analysis of several recent ROSAT HRI observations of the gravitationally lensed system Q0957+561 has led to the detection at the 3sigma level of the cluster lens containing the pri…
A Catalog of 200 Galaxy Clusters Serendipitously Detected in the ROSAT PSPC Pointed Observations
A. Vikhlinin. B. R. McNamara, W. Forman, C. Jones +2
We present a catalog of 200 clusters of galaxies serendipitously detected in 647 ROSAT PSPC pointings covering 158 square degrees. This is one of the largest X-ray selected cluster…
The rich cluster of galaxies ABCG 85. III. Analyzing the ABCG 85/87/89 complex
F. Durret, W. Forman, D. Gerbal +2
We present a combined X-ray and optical analysis of the ABCG 85/87/89 complex of clusters of galaxies, based on the ROSAT PSPC image, optical photometric catalogues (Slezak et al.…
Evidence for Merging in the Centaurus Cluster
E. Churazov, M. Gilfanov, W. Forman +1
We present a two dimensional map of the gas temperature distribution in the Centaurus cluster, based on ASCA observations derived using a novel approach to account for the energy d…