JOURNAL ARTICLE

MeerKAT's view of double radio relic galaxy cluster Abell 3376.

  • Published In: Publications of the Astronomical Society of Japan, 2023, v. 75. P. S97 1 of 3

  • Database: Academic Search Ultimate 2 of 3

  • Authored By: Chibueze, James O; Akamatsu, Hiroki; Parekh, Viral; Sakemi, Haruka; Ohmura, Takumi; Rooyen, Ruby van; Akahori, Takuya; Nakanishi, Hiroyuki; Machida, Mami; Takeuchi, Tsutomu T; Smirnov, Oleg; Kleiner, Dane; Maccagni, Filippo M 3 of 3

Abstract

This article presents high-resolution and high-sensitivity L-band radio observations of the merging galaxy cluster Abell 3376 using the MeerKAT telescope. The study confirms the presence of previously known East and West radio relics and associated radio galaxies, revealing faint extended radio arcs and a connection between the East relic and AGN jet-like structures, suggesting that active galactic nuclei may supply seed electrons for re-acceleration at the relic. No significant diffuse radio halo emission was detected in the cluster center, with a new, more stringent upper limit on radio halo power established at <1.8 × 10²³ W Hz⁻¹ at 1.4 GHz. These results improve upon prior observations by achieving better angular resolution (~5″) and sensitivity (~4 μJy beam⁻¹), contributing to the understanding of particle acceleration mechanisms in cluster mergers.

Additional Information

  • Source:Publications of the Astronomical Society of Japan. 2023/02, Vol. 75, pS97
  • Document Type:Article
  • Subject Area:Astronomy and Astrophysics
  • Publication Date:2023
  • ISSN:0004-6264
  • DOI:10.1093/pasj/psac009
  • Accession Number:162394152
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