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Durham University

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Publication details for Dr Matteo Fossati

Ge, Chong, Sun, Ming, Liu, Ruo-Yu, Rudnick, Lawrence, Sarazin, Craig, Forman, William, Jones, Christine, Chen, Hao, Liu, Wenhao, Yagi, Masafumi, Boselli, Alessandro, Fossati, Matteo & Gavazzi, Giuseppe (2019). A merger shock in Abell 1367. Monthly Notices of the Royal Astronomical Society: Letters 486(1): L36-L40.

Author(s) from Durham


Multiwavelength observations show that Abell 1367 (A1367) is a dynamically young cluster, with at least two subclusters merging along the SE–NW direction. With the wide-field XMM–Newton mosaic of A1367, we discover a previously unknown merger shock at the NW edge of the cluster. We estimate the shock Mach number from the density and temperature jumps as Mρ = 1.21 ± 0.08 and MT = 1.60 ± 0.07, respectively. This shock region also corresponds to a radio relic discovered with the VLA and GBT, which could be produced by the shock re-acceleration of pre-existing seed relativistic electrons. We suggest that some of the seed relativistic electrons originate from late-type, star-forming galaxies in this region.