A merger shock in Abell 1367

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

doi:10.1093/mnrasl/slz049

A merger shock in Abell 1367

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

Authors

Chong Ge

Ming Sun

Ruo-Yu Liu

Lawrence Rudnick

Craig Sarazin

William Forman

Christine Jones

Hao Chen

Wenhao Liu

Masafumi Yagi

Alessandro Boselli

Matteo Fossati

Giuseppe Gavazzi

Abstract

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.

Citation

Ge, C., Sun, M., Liu, R., Rudnick, L., Sarazin, C., Forman, W., …Gavazzi, G. (2019). A merger shock in Abell 1367. Monthly Notices of the Royal Astronomical Society: Letters, 486(1), L36-L40. https://doi.org/10.1093/mnrasl/slz049

Journal Article Type	Article
Acceptance Date	Apr 4, 2019
Online Publication Date	Apr 27, 2019
Publication Date	Jun 30, 2019
Deposit Date	Jul 3, 2019
Publicly Available Date	Jul 3, 2019
Journal	Monthly Notices of the Royal Astronomical Society: Letters
Electronic ISSN	1745-3933
Publisher	Oxford University Press
Peer Reviewed	Peer Reviewed
Volume	486
Issue	1
Pages	L36-L40
DOI	https://doi.org/10.1093/mnrasl/slz049