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.
|Original language||English (US)|
|Journal||Monthly Notices of the Royal Astronomical Society: Letters|
|State||Published - Jun 1 2019|
Bibliographical noteFunding Information:
Support for this work was provided by the NASA grant 80NSSC18K0606 and the NSF grant 1714764. Partial support for LR comes from NSF grant AST 17-14205 to the University of Minnesota. MF has received funding from the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation programme (grant agreement no. 757535).
© 2019 The Author(s).
- Galaxies: clusters: individual: abell 1367
- Galaxies: clusters: intracluster medium
- X-rays: galaxies: clusters