A merger shock in Abell 1367

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

doi:10.1093/mnrasl/slz049

A merger shock in Abell 1367

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

Physics and Astronomy (Twin Cities)

Research output: Contribution to journal › Article › peer-review

17 Scopus citations

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 M_ρ = 1.21 ± 0.08 and M_T = 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)
Pages (from-to)	L36-L40
Journal	Monthly Notices of the Royal Astronomical Society: Letters
Volume	486
Issue number	1
DOIs	https://doi.org/10.1093/mnrasl/slz049
State	Published - Jun 1 2019

Bibliographical note

Funding 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).

Publisher Copyright:
© 2019 The Author(s).

Keywords

Galaxies: clusters: individual: abell 1367
Galaxies: clusters: intracluster medium
X-rays: galaxies: clusters

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10.1093/mnrasl/slz049

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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.",

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author = "Chong Ge and Ming Sun and Liu, {Ruo Yu} and Lawrence Rudnick and Craig Sarazin and William Forman and Christine Jones and Hao Chen and Wenhao Liu and Masafumi Yagi and Alessandro Boselli and Matteo Fossati and Giuseppe Gavazzi",

note = "Funding 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{\textquoteright}s Horizon 2020 research and innovation programme (grant agreement no. 757535). Publisher Copyright: {\textcopyright} 2019 The Author(s).",

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T1 - A merger shock in Abell 1367

AU - Ge, Chong

AU - Sun, Ming

AU - Liu, Ruo Yu

AU - Rudnick, Lawrence

AU - Sarazin, Craig

AU - Forman, William

AU - Jones, Christine

AU - Chen, Hao

AU - Liu, Wenhao

AU - Yagi, Masafumi

AU - Boselli, Alessandro

AU - Fossati, Matteo

AU - Gavazzi, Giuseppe

N1 - Funding 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). Publisher Copyright: © 2019 The Author(s).

PY - 2019/6/1

Y1 - 2019/6/1

N2 - 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.

AB - 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.

KW - Galaxies: clusters: individual: abell 1367

KW - Galaxies: clusters: intracluster medium

KW - X-rays: galaxies: clusters

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A merger shock in Abell 1367

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