Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/24547
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Basu, K. | en_US |
dc.contributor.author | Sommer, M. | en_US |
dc.contributor.author | Erler, J. | en_US |
dc.contributor.author | Eckert, D. | en_US |
dc.contributor.author | VAZZA, FRANCO | en_US |
dc.contributor.author | Magnelli, B. | en_US |
dc.contributor.author | Bertoldi, F. | en_US |
dc.contributor.author | TOZZI, Paolo | en_US |
dc.date.accessioned | 2020-05-06T13:01:34Z | - |
dc.date.available | 2020-05-06T13:01:34Z | - |
dc.date.issued | 2016 | en_US |
dc.identifier.issn | 0722-6691 | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/24547 | - |
dc.description.abstract | We report on the first ALMA measurement of a galaxy cluster merger shock, observed at the location of a radio relic in the famous El Gordo galaxy cluster at redshift z 0.9. Located at about half the current age of the Universe, this is also the most distant example of a directly measured astrophysical shock. ALMA Band 3 was utilised to measure the Sunyaev-Zel'dovich (SZ) effect signature that confirms a small-scale change in pressure as expected from the passage of a shock in the intracluster medium. The results support a previous radio-based estimate of the shock Mach number and display similarities, and also some mild tensions, with the X-ray based results. Most importantly, these results show the potential of ALMA to detect galaxy cluster shocks, observations that will advance our knowledge of cluster formation, non-thermal particle acceleration and amplification of magnetic fields across the entire observable Universe where such relic shocks can be found. | en_US |
dc.language.iso | eng | en_US |
dc.title | First ALMA Detection of a Galaxy Cluster Merger Shock | en_US |
dc.type | Article | - |
dc.identifier.url | http://www.eso.org/sci/publications/messenger/ | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 166 | en_US |
dc.relation.firstpage | 53 | en_US |
dc.type.referee | REF_0 | en_US |
dc.description.numberofauthors | 8 | en_US |
dc.description.international | sì | en_US |
dc.relation.scientificsector | FIS/05 - ASTRONOMIA E ASTROFISICA | en_US |
dc.relation.journal | THE MESSENGER | en_US |
dc.type.miur | 262 Articolo in rivista | - |
dc.identifier.adsbibcode | 2016Msngr.166...53B | en_US |
dc.relation.ercsector | Scienze Fisiche Settori ERC (ERC) di riferimento::PE9 Universe sciences: astro-physics/chemistry/biology; solar systems; stellar, galactic and extragalactic astronomy, planetary systems, cosmology, space science, instrumentation | 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 | IRA Bologna | - |
crisitem.author.dept | O.A. Arcetri | - |
crisitem.author.orcid | 0000-0002-2821-7928 | - |
crisitem.author.orcid | 0000-0003-3096-9966 | - |
crisitem.journal.journalissn | 0722-6691 | - |
crisitem.journal.ance | E184749 | - |
Appears in Collections: | 1.01 Articoli in rivista |
Files in This Item:
File | Description | Size | Format | |
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messenger-no166-53-57.pdf | PDF editoriale | 1.3 MB | Adobe PDF | View/Open |
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