Volume 376, Number 3, September IV 2001
|Page(s)||803 - 819|
|Section||Cosmology (including clusters of galaxies)|
|Published online||15 September 2001|
Radio and X-ray diffuse emission in six clusters of galaxies
Dipartimento di Astronomia, Univ. Bologna, Via Ranzani 1, 40127 Bologna, Italy
2 Istituto di Radioastronomia -CNR, via Gobetti 101, 40129 Bologna, Italy
3 Dipartimento di Fisica, Univ. Bologna, Via B. Pichat 6/2, 40127 Bologna, Italy
4 Max-Planck-Institut für Extraterrestrische Physik, PO Box 1603, 85740 Garching, Germany
Corresponding author: F. Govoni, firstname.lastname@example.org
Accepted: 6 July 2001
Deep Very Large Array radio observations confirm the presence of halo and relic sources in six clusters of galaxies (A115, A520, A773, A1664, A2254, A2744) where a wide diffuse emission was previously found in the NRAO VLA Sky Survey. New images at 1.4 GHz of these six clusters of galaxies are presented and X-ray data obtained from the ROSAT archive are analyzed. The properties of clusters hosting radio halos and relics are analyzed and discussed. A correlation between the halo radio power and the cluster gravitational mass is presented.
Key words: galaxies: clusters: general / intergalactic medium / magnetic fields / radio continuum: general / X-rays: general
© ESO, 2001
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