Giant Ringlike Radio Structures Around Galaxy Cluster Abell 3376

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dc.creatorBagchi, Joydeep
dc.creatorDurret, Florence
dc.creatorNeto, Gastao B. Lima
dc.creatorPaul, Surajit
dc.date2006-11-09
dc.date.accessioned2026-07-07T07:30:44Z
dc.date.available2026-07-07T07:30:44Z
dc.descriptionIn the current paradigm of cold dark matter cosmology, large-scale structures are assembling through hierarchical clustering of matter. In this process, an important role is played by megaparsec (Mpc)-scale cosmic shock waves, arising in gravity-driven supersonic flows of intergalactic matter onto dark matter-dominated collapsing structures such as pancakes, filaments, and clusters of galaxies. Here, we report Very Large Array telescope observations of giant (~2 Mpc by 1.6 Mpc), ring-shaped nonthermal radio-emitting structures, found at the outskirts of the rich cluster of galaxies Abell 3376. These structures may trace the elusive shock waves of cosmological large-scale matter flows, which are energetic enough to power them. These radio sources may also be the acceleration sites where magnetic shocks are possibly boosting cosmic-ray particles with energies of up to 10^18 to 10^19 electron volts.
dc.descriptionPublished on Science, 3 November 2006. Main paper and Supporting Online Material
dc.identifierhttps://arxiv.org/abs/astro-ph/0611297
dc.identifierhttp://arxiv.org/abs/astro-ph/0611297
dc.identifierScience 314 (2006) 791-794
dc.identifierdoi:10.1126/science.1131189
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/118505
dc.subjectAstrophysics
dc.titleGiant Ringlike Radio Structures Around Galaxy Cluster Abell 3376
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