For refcode 1999NewA....4..141G: Retrieve 29 NED objects in this reference. Please click here for ADS abstract
NED Abstract
Reproduced by permission
1999NewA....4..141G
Radio halo and relic candidates from the NRAO VLA Sky Survey
G. Giovannini, M. Tordi, L. Feretti
Received 13 January 1999: accepted 2 March 1999
Abstract
We present the first results of the search of new halo and relic
candidates in the NRAO VLA Sky Survey. We have inspected a sample of 205
clusters from the X-ray-brightest Abell-type clusters presented by Ebeling
et al. (1996), and found 29 candidates. Out of them, 11 clusters are
already known from the literature to contain a diffuse cluster-wide source,
while in 18 clusters this is the first indication of the existence of this
type of sources. We classify these sources as halos or relics according to
their location in the cluster center or periphery, respectively. We find
that the occurrence of cluster halos and relics is higher in clusters with
high X-ray luminosity and high temperature. We also confirm the correlation
between the absence of a cooling flow and the presence of a radio halo at
the cluster center.
Keywords: Galaxies: clusters: general: Intergalactic medium; Radio
continuum: general; X-rays: general
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