Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/28605
DC Field | Value | Language |
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dc.contributor.author | CARRETTI, ETTORE | en_US |
dc.contributor.author | Haverkorn, M. | en_US |
dc.contributor.author | Staveley-Smith, L. | en_US |
dc.contributor.author | BERNARDI, GIANNI | en_US |
dc.contributor.author | Gaensler, B. M. | en_US |
dc.contributor.author | Kesteven, M. J. | en_US |
dc.contributor.author | POPPI, Sergio | en_US |
dc.contributor.author | Brown, S. | en_US |
dc.contributor.author | Crocker, R. M. | en_US |
dc.contributor.author | Purcell, C. | en_US |
dc.contributor.author | Schnitzeler, D. H. F. M. | en_US |
dc.contributor.author | Sun, X. | en_US |
dc.date.accessioned | 2020-12-01T15:55:13Z | - |
dc.date.available | 2020-12-01T15:55:13Z | - |
dc.date.issued | 2019 | en_US |
dc.identifier.issn | 0035-8711 | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/28605 | - |
dc.description.abstract | We present the S-Band Polarization All Sky Survey (S-PASS), a survey of polarized radio emission over the southern sky at Dec. <-1° taken with the Parkes radio telescope at 2.3 GHz. The main aim was to observe at a frequency high enough to avoid strong depolarization at intermediate Galactic latitudes (still present at 1.4 GHz) to study Galactic magnetism, but low enough to retain ample signal-to-noise ratio (S/N) at high latitudes for extragalactic and cosmological science. We developed a new scanning strategy based on long azimuth scans and a corresponding map-making procedure to make recovery of the overall mean signal of Stokes Q and U possible, a long-standing problem with polarization observations. We describe the scanning strategy, map-making procedure and validation tests. The overall mean signal is recovered with a precision better than 0.5 per cent. The maps have a mean sensitivity of 0.81 mK on beam-size scales and show clear polarized signals, typically to within a few degrees of the Galactic plane, with ample S/N everywhere (the typical signal in low-emission regions is 13 mK and 98.6 per cent of pixels have S/N > 3). The largest depolarization areas are in the inner Galaxy, associated with the Sagittarius Arm. We have also computed a rotation measure map combining S-PASS with archival data from the Wilkinson Microwave Anisotropy Probe (WMAP) and Planck experiments. A Stokes I map has been generated, with sensitivity limited to the confusion level of 9 mK. | en_US |
dc.language.iso | eng | en_US |
dc.title | S-band Polarization All-Sky Survey (S-PASS): survey description and maps | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.1093/mnras/stz806 | en_US |
dc.identifier.scopus | 2-s2.0-85075154328 | en_US |
dc.identifier.isi | 000489298100067 | en_US |
dc.identifier.url | https://academic.oup.com/mnras/article/489/2/2330/5561417 | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 489 | en_US |
dc.relation.issue | 2 | en_US |
dc.relation.firstpage | 2330 | en_US |
dc.type.referee | REF_4 | en_US |
dc.description.international | sì | 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 | 2019MNRAS.489.2330C | 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 | IRA Bologna | - |
crisitem.author.dept | O.A. Cagliari | - |
crisitem.author.orcid | 0000-0002-3973-8403 | - |
crisitem.author.orcid | 0000-0002-0916-7443 | - |
crisitem.author.orcid | 0000-0002-4698-2607 | - |
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 | |
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stz806_comp_sejda.pdf | PDF editoriale | 1.46 MB | Adobe PDF | View/Open |
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