Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/27342
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kale, Ruta | en_US |
dc.contributor.author | Wik, Daniel R. | en_US |
dc.contributor.author | Giacintucci, Simona | en_US |
dc.contributor.author | VENTURI, Tiziana | en_US |
dc.contributor.author | BRUNETTI, GIANFRANCO | en_US |
dc.contributor.author | CASSANO, Rossella | en_US |
dc.contributor.author | Dallacasa, Daniele | en_US |
dc.contributor.author | DE GASPERIN, FRANCESCO | en_US |
dc.date.accessioned | 2020-09-14T06:52:35Z | - |
dc.date.available | 2020-09-14T06:52:35Z | - |
dc.date.issued | 2017 | en_US |
dc.identifier.issn | 0035-8711 | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/27342 | - |
dc.description.abstract | Radio relics at the peripheries of galaxy clusters are tracers of the elusive cluster merger shocks. We report the discovery of a single radio relic in the galaxy cluster PLCK G200.9-28.2 (z = 0.22, M500 = 2.7 ± 0.2 × 1014 M☉) using the Giant Metrewave Radio Telescope at 235 and 610 MHz and the Karl G. Jansky Very Large Array at 1500 MHz. The relic has a size of ∼1 × 0.28 Mpc, an arc-like morphology and is located at 0.9 Mpc from the X-ray brightness peak in the cluster. The integrated spectral index of the relic is 1.21 ± 0.15. The spectral index map between 235 and 610 MHz shows steepening from the outer to the inner edge of the relic in line with the expectation from a cluster merger shock. Under the assumption of diffusive shock acceleration, the radio spectral index implies a Mach number of 3.3 ± 1.8 for the shock. The analysis of archival XMM-Newton data shows that PLCK G200.9-28.2 consists of a northern brighter sub-cluster, and a southern sub-cluster in a state of merger. This cluster has the lowest mass amongst the clusters hosting single radio relics. The position of the Planck Sunyaev-Ze'ldovich effect in this cluster is offset by 700 kpc from the X-ray peak in the direction of the radio relic, suggests a physical origin for the offset. Such large offsets in low mass clusters can be a useful tool to select disturbed clusters and to study the state of merger. | en_US |
dc.language.iso | eng | en_US |
dc.title | Discovery of a radio relic in the low mass, merging galaxy cluster PLCK G200.9-28.2 | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.1093/mnras/stx2031 | en_US |
dc.identifier.scopus | 2-s2.0-85039701674 | en_US |
dc.identifier.isi | 000413765800076 | en_US |
dc.identifier.url | https://academic.oup.com/mnras/article-abstract/472/1/940/4082089?redirectedFrom=fulltext | en_US |
dc.relation.medium | STAMPA | en_US |
dc.type.referee | REF_1 | en_US |
dc.contributor.country | NLD | en_US |
dc.relation.scientificsector | FIS/05 - ASTRONOMIA E ASTROFISICA | en_US |
dc.relation.journal | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | en_US |
dc.type.miur | 262 Articolo in rivista | - |
dc.identifier.adsbibcode | 2017MNRAS.472..940K | en_US |
dc.description.apc | no | en_US |
dc.description.oa | 1 – prodotto con file in versione Open Access (allegare il file al passo 5-Carica) | en_US |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.openairetype | Article | - |
item.languageiso639-1 | en | - |
item.cerifentitytype | Publications | - |
item.grantfulltext | open | - |
item.fulltext | With Fulltext | - |
crisitem.author.dept | OAS Bologna | - |
crisitem.author.dept | IRA Bologna | - |
crisitem.author.dept | IRA Bologna | - |
crisitem.author.orcid | 0000-0002-8476-6307 | - |
crisitem.author.orcid | 0000-0003-4195-8613 | - |
crisitem.author.orcid | 0000-0003-1246-6492 | - |
crisitem.journal.journalissn | 0035-8711 | - |
crisitem.journal.ance | E112946 | - |
Appears in Collections: | 1.01 Articoli in rivista |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
stx2031.pdf | PDF editoriale | 1.5 MB | Adobe PDF | View/Open |
1708.01718.pdf | preprint | 927.57 kB | Adobe PDF | View/Open |
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