Spectral Analysis of RXTE Observations of A3667
arXiv:astro-ph/0401312 · doi:10.1086/383123
Abstract
X-ray emission from the cluster of galaxies A3667 was measured by the PCA and HEXTE experiments aboard the RXTE satellite during the period December 2001 - July 2002. Analysis of the ~141 ks RXTE observation and lower energy ASCA/GIS data, yields only marginalevidence for a secondary power-law emission component in the spectrum. The 90% confidence upper limit on nonthermal emission in the 15-35 keV band is determined to be 2.6x10^{-12} erg/(cm^{2}s). When combined with the measured radio flux and spectral index of the dominant region of extended radio emission, this upper limit implies a lower limit of ~0.4 microgauss on the mean, volume-averaged intracluster magnetic field in A3667.
arXiv comment7 pages, 1 figure; ApJ, in press
References in corpus (17)
- A New Radio - X-Ray Probe of Galaxy Cluster Magnetic Fields
- A moving cold front in the intergalactic medium of A3667
- Hard X-Ray Radiation in the Coma Cluster Spectrum
- Physics of the Merging Clusters Cygnus A, A3667, and A2065
- Confirmation of non-thermal hard X-ray excess in the Coma cluster from two epoch observations
- Hard X-ray emission from the galaxy cluster A2256
- XMM-Newton confirmation of Soft X-ray excess emission in clusters of galaxies - the discovery of O VII emission from an extended warm baryonic component
- Extreme Ultraviolet Emission from Clusters of Galaxies: Inverse Compton Radiation from a Relic Population of Cosmic Ray Electrons?
- Is there a hard tail in the Coma Cluster X-ray spectrum?
- Lowering Inferred Cluster Magnetic Field Strengths - the radio galaxy contributions
- Results from a Second RXTE Observation of the Coma Cluster
- EUV Emission in Abell 1795, Abell 2199, and the Coma Cluster
- Hard X-ray emission from the galaxy cluster A3667
- Are the Faraday Rotating Magnetic Fields Local to Intracluster Radio Galaxies?
- Quantification of Uncertainty in the Measurement of Magnetic Fields in Clusters of Galaxies
- The EUV Emission in the Coma Cluster of Galaxies and the Underlying Source of this Radiation
- RXTE and ASCA Constraints on Non-thermal Emission from the A2256 Galaxy Cluster
Cited by in corpus (7)
- Diffuse Radio Emission from Galaxy Clusters
- Nonthermal phenomena in clusters of galaxies
- An azimuthally resolved study of the cold front in Abell 3667
- The Swift BAT Perspective on Non-thermal Emission in HIFLUGCS Galaxy Clusters
- Hard X-ray/Soft gamma-ray experiments and missions: overview and prospects
- Possible non-thermal origin of the hard X-ray emission in the merging galaxy cluster SPT-CL J2031-4037
- NuSTAR Observations of the Galaxy Cluster Abell 3667