English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

A2163 was observed by the RXTE satellite for 530 ks during a 6 month periodstarting in August 2004. The cluster primary emission is from very hotintracluster gas with kT~15 keV, but this component does not by itself providethe best fitting model. A secondary emission component is quite clearly needed,and while this could also be thermal at a temperature significantly lower thankT~15 keV, the best fit (to the combined PCA and HEXTE datasets) is obtainedwith a power law secondary spectral component. The deduced parameters of thenon-thermal (NT) emission imply a significant fractional flux amounting to ~25%of the integrated 3-50 keV emission. NT emission is expected given the intenselevel of radio emission, most prominently from a large extended (`halo')central region of the cluster. Interpreting the deduced NT emission as Comptonscattering of the radio-emitting relativistic electrons by the CMB, we estimatethe volume-averaged value of the magnetic field in the extended radio region tobe B=0.4+/-0.2 microG.Comment: 10 pages, 1 figure; accepted for publication in Ap

LongRXTEObservations of A2163