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

14 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

Publisher Copyright:
© 2019 The Author(s).

Keywords

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

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title = "A merger shock in Abell 1367",

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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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

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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JF - Monthly Notices of the Royal Astronomical Society: Letters

IS - 1

ER -

A merger shock in Abell 1367

Abstract

Bibliographical note

Keywords

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