Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/30441
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Luca Bravi | en_US |
dc.contributor.author | Myriam Gitti | en_US |
dc.contributor.author | BRUNETTI, GIANFRANCO | en_US |
dc.date.accessioned | 2021-02-17T16:13:48Z | - |
dc.date.available | 2021-02-17T16:13:48Z | - |
dc.date.issued | 2016 | en_US |
dc.identifier.issn | 1745-3925 | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/30441 | - |
dc.description.abstract | In this letter we present a study of the central regions of cool-core clusters hosting radio mini-halos, which are diffuse synchrotron sources extended on cluster-scales surrounding the radio-loud brightest cluster galaxy. We aim to investigate the interplay between the thermal and non-thermal components in the intra-cluster medium in order to get more insights into these radio sources, whose nature is still unclear. It has recently been proposed that turbulence plays a role for heating the gas in cool cores. By assuming that mini-halos are powered by the same turbulence, we expect that the integrated radio luminosity of mini-halos, $\nu P_{\nu}$, depends on the cooling flow power, $P_{\rm CF}$, which in turn constrains the energy available for the non-thermal components and emission in the cool-core region. We carried out a homogeneous re-analysis of X-ray Chandra data of the largest sample of cool-core clusters hosting radio mini-halos currently available ($\sim$ 20 objects), finding a quasi-linear correlation, $\nu P_{\nu} \propto P_{\rm CF}^{0.8}$. We show that the scenario of a common origin of radio mini-halos and gas heating in cool-core clusters is energetically viable, provided that mini-halos trace regions where the magnetic field strength is $B \gg 0.5\, \mu$G . | en_US |
dc.language.iso | eng | en_US |
dc.title | Do radio mini-halos and gas heating in cool-core clusters have a common origin? | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.1093/mnrasl/slv137 | en_US |
dc.identifier.scopus | 2-s2.0-84987899490 | en_US |
dc.identifier.isi | 000368005900009 | en_US |
dc.identifier.url | http://arxiv.org/abs/1509.06911v1 | en_US |
dc.identifier.url | https://academic.oup.com/mnrasl/article/455/1/L41/2589509 | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 455 | en_US |
dc.relation.issue | 1 | en_US |
dc.relation.firstpage | L41 | en_US |
dc.relation.lastpage | L45 | en_US |
dc.type.referee | REF_1 | en_US |
dc.relation.scientificsector | FIS/05 - ASTRONOMIA E ASTROFISICA | en_US |
dc.relation.journal | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY. LETTERS | en_US |
dc.type.miur | 262 Articolo in rivista | - |
dc.identifier.adsbibcode | 2016MNRAS.455L..41B | 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.fulltext | With Fulltext | - |
item.cerifentitytype | Publications | - |
item.grantfulltext | open | - |
crisitem.journal.journalissn | 1745-3925 | - |
crisitem.journal.ance | E205843 | - |
crisitem.author.dept | IRA Bologna | - |
crisitem.author.orcid | 0000-0003-4195-8613 | - |
Appears in Collections: | 1.01 Articoli in rivista |
Files in This Item:
File | Description | Size | Format | |
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slv137.pdf | Pdf editoriale | 459.16 kB | Adobe PDF | View/Open |
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