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Radio Halo and Relic Candidates from the Westerbork Northern Sky Survey
Open accessAbstract
We have undertaken a systematic search for diffuse radio halos and relics in all of the Abell clusters that are visible in the Westerbork Northern Sky Survey. In this survey we found 18 candidates, 11 of which are already known from the literature and seven for which we provide the first evidence of diffuse radio emission. All the clusters in this sample show other evidence for a recent or ongoing merger. We also investigate the correlation between cluster X-ray luminosity and radio power of halos. We develop a very simple model for merger shocks that reproduce the sense of this correlation, although it is probably not as steep as the correlation in the data. We discuss the implications of X-ray-radio correlations for future detections of radio halos.
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Cited by
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Feretti, L., Giovannini, G., Govoni, F., & Murgia, M. (2012) · The Astronomy and Astrophysics Review · doi:10.1007/s00159-012-0054-z · Cited by 667
MAGNETIC FIELDS IN CLUSTERS OF GALAXIES
GOVONI, F., & FERETTI, L. (2004) · International Journal of Modern Physics D · doi:10.1142/s0218271804005080 · Cited by 486
LoCuSS: Subaru Weak Lensing Study of 30 Galaxy Clusters
Okabe, N., Takada, M., Umetsu, K., Futamase, T., & Smith, G. P. (2010) · Publications of the Astronomical Society of Japan · doi:10.1093/pasj/62.3.811 · Cited by 266
Menanteau, F., Hughes, J. P., Sifón, C., Hilton, M., González, J., Infante, L., Felipe Barrientos, L., Baker, A. J., Bond, J. R., Das, S., et al. (2012) · The Astrophysical Journal · doi:10.1088/0004-637x/748/1/7 · Cited by 183
Metadata
- Authors
- Kempner, J. C., & Sarazin, C. L.
- Venue
- The Astrophysical Journal
- Publisher
- American Astronomical Society
- Published
- 2001-02-20
- Volume
- 548
- Issue
- 2
- Pages
- 639-651
- ISSN
- 0004-637X (ISSN-L)
- 1538-4357
- OpenAlex
- W2047715344
- Cited by
- 184
- References
- 0
- FWCI
- 7.74
- Type
- journal article
- Language
- en
- Open access
- bronze
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