A 15.5 GHz detection of the galaxy cluster minihalo in RXJ1720.1+2638

Yvette C. Perrott,Pedro Carvalho,Patrick J. Elwood,Keith J. B. Grainge,David A. Green,Kamran Javid,Terry Z. Jin,Clare Rumsey,Richard D. E. Saunders

Monthly Notices of the Royal Astronomical Society（2021）

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摘要

RXJ1720.1+2638 is a cool-core, ‘relaxed-appearing’ cluster with a minihalo previously detected up to 8.4 GHz, confined by X-ray-detected cold fronts. We present observations of the minihalo at 13–18 GHz with the Arcminute Microkelvin Imager telescope, simultaneously modelling the Sunyaev–Zel’dovich signal of the cluster in conjunction with Planck and Chandra data in order to disentangle the non-th...

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关键词

radiation mechanisms: non-thermal,galaxies: clusters: individual: RXJ1720.1+2638,galaxies: clusters: intracluster medium,radio continuum: general

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