A merger shock in Abell 1367
| Autor: | 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 |
|---|---|
| Rok vydání: | 2019 |
| Předmět: | |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1093/mnrasl/slz049 |
| Popis: | Multi-wavelength 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 $M_{\rho}=1.21\pm0.08$ and $M_T=1.60\pm0.07$, 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. Comment: 5 pages, 1 figure, MNRAS Letters in press |
| Databáze: | arXiv |
| Externí odkaz: |
|