The Lack of Diffuse, Non-thermal Hard X-ray Emission in the Coma Cluster: The Swift Burst Alert Telescope's Eye View

@article{Wik2011TheLO,
  title={The Lack of Diffuse, Non-thermal Hard X-ray Emission in the Coma Cluster: The Swift Burst Alert Telescope's Eye View},
  author={Daniel R. Wik and Craig L. Sarazin and Alexis Finoguenov and Wayne H. Baumgartner and Richard F. Mushotzky and Takashi Okajima and Jack Tueller and T. Lanz Nasa Gsfc and University of Virginia and Mpe and University of Maryland Baltimore County and University Park and Nrl},
  journal={The Astrophysical Journal},
  year={2011},
  volume={727},
  pages={119}
}
The Coma Cluster of galaxies hosts the brightest radio halo known and has therefore been the target of numerous searches for associated inverse Compton (IC) emission, particularly at hard X-ray energies where the IC signal must eventually dominate over thermal emission. The most recent search with the Suzaku Hard X-ray Detector failed to confirm previous IC detections with RXTE and BeppoSAX, instead setting an upper limit 2.5 times below their non-thermal flux. However, this discrepancy can be… Expand
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References

SHOWING 1-10 OF 47 REFERENCES
Galaxy clusters in the Swift/Burst alert telescope Era: hard X-rays in the intracluster medium
We report the detection of 10 clusters of galaxies in the ongoing Swift/Burst Alert Telescope (BAT) all-sky survey. This sample, which mostly comprises merging clusters, was serendipitously detectedExpand
Galaxy Clusters in the Swift/BAT era: Hard X-rays in the ICM
We report about the detection of 10 clusters of galaxies in the ongoing Swift/BAT all-sky survey. This sample, which comprises mostly merging clusters, was serendipitously detected in the 15--55 keVExpand
A Suzaku Search for Nonthermal Emission at Hard X-Ray Energies in the Coma Cluster
The brightest cluster radio halo known resides in the Coma cluster of galaxies. The relativistic electrons producing this diffuse synchrotron emission should also produce inverse Compton emissionExpand
Chandra measurements of non-thermal-like X-ray emission from massive, merging, radio halo clusters
We report the discovery of spatially extended, non-thermal-like emission components in Chandra X-ray spectra for five of a sample of seven massive, merging galaxy clusters with powerful radio haloes.Expand
The 22 Month Swift-BAT All-Sky Hard X-ray Survey
We present the catalog of sources detected in the first 22 months of data from the hard X-ray survey (14-195 keV) conducted with the Burst Alert Telescope (BAT) coded mask imager on the SwiftExpand
HARD X-RAY RADIATION IN THE COMA CLUSTER SPECTRUM
Hard X-ray radiation has been detected for the first time in the Coma Cluster by BeppoSAX. Thanks to the unprecedented sensitivity of the Phoswich Detection System (PDS) instrument, the source hasExpand
Nonthermal Hard X-Ray Emission in Galaxy Clusters Observed with the BeppoSAX PDS
We study the X-ray emission in a sample of galaxy clusters using the BeppoSAX PDS instrument in the 20-80 keV energy band. We estimate the nonthermal hard X-ray (HXR) cluster emission by modeling theExpand
Galaxy Clusters in the Swift/BAT era
We report about the detection of 10 clusters of galaxies in the ongoing Swift/BAT all-sky survey. This sample, which comprises mostly merging clusters, was serendipitously detected in the 15-55 keVExpand
Hard X-ray emission from accretion shocks around galaxy clusters
We show that the hard X-ray (HXR) emission observed from several galaxy clusters is naturally explained by a simple model, in which the nonthermal emission is produced by inverse Compton scatteringExpand
Bandpass Dependence of X-Ray Temperatures in Galaxy Clusters
We explore the band dependence of the inferred X-ray temperature of the intracluster medium (ICM) for 192 well-observed galaxy clusters selected from the Chandra Data Archive. If the hot ICM isExpand
...
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5
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