Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/29054
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Thomson, Alec J. M. | en_US |
dc.contributor.author | McClure-Griffiths, N. M. | en_US |
dc.contributor.author | Federrath, Christoph | en_US |
dc.contributor.author | Dickey, John M. | en_US |
dc.contributor.author | CARRETTI, ETTORE | en_US |
dc.contributor.author | Gaensler, B. M. | en_US |
dc.contributor.author | Haverkorn, Marijke | en_US |
dc.contributor.author | Kesteven, M. J. | en_US |
dc.contributor.author | Staveley-Smith, Lister | en_US |
dc.date.accessioned | 2020-12-21T12:15:17Z | - |
dc.date.available | 2020-12-21T12:15:17Z | - |
dc.date.issued | 2018 | en_US |
dc.identifier.issn | 0035-8711 | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/29054 | - |
dc.description.abstract | We identify a counterpart to a Galactic supershell in diffuse radio polarization, and use this to determine the magnetic fields associated with this object. GSH 006 - 15 + 7 has perturbed the polarized emission at 2.3 GHz, as observed in the S-band Polarization All Sky Survey (S-PASS), acting as a Faraday screen. We model the Faraday rotation over the shell, and produce a map of Faraday depth over the area across it. Such models require information about the polarized emission behind the screen, which we obtain from the Wilkinson Microwave Anisotropy Probe (WMAP), scaled from 23 to 2.3 GHz, to estimate the synchrotron background behind GSH 006 - 15 + 7. Using the modelled Faraday thickness, we determine the magnitude and the plane-of-the-sky structure of the line-of-sight magnetic field in the shell. We find a peak line-of-sight field strength of |B_allel |_peak=2.0^{+0.01 }_{ -0.7} μG. Our measurement probes weak magnetic fields in a low-density regime (number densities of {∼ }0.4 cm<SUP>-3</SUP>) of the ISM, thus providing crucial information about the magnetic fields in the partially-ionized phase. | en_US |
dc.language.iso | eng | en_US |
dc.title | Ghost of a shell: magnetic fields of Galactic supershell GSH 006 - 15 + 7 | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.1093/mnras/sty1865 | en_US |
dc.identifier.scopus | 2-s2.0-85051524479 | en_US |
dc.identifier.isi | 000441383700095 | en_US |
dc.identifier.url | https://academic.oup.com/mnras/article-abstract/479/4/5620/5056214?redirectedFrom=fulltext | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 479 | en_US |
dc.relation.issue | 4 | en_US |
dc.relation.firstpage | 5620 | 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 | en_US |
dc.type.miur | 262 Articolo in rivista | - |
dc.identifier.adsbibcode | 2018MNRAS.479.5620T | 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.orcid | 0000-0002-3973-8403 | - |
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 | |
---|---|---|---|---|
sty1865.pdf | Pdf editoriale | 16.11 MB | Adobe PDF | View/Open |
29054-sty1865_P01.pdf | Miur | 8.6 MB | Adobe PDF | |
29054-sty1865_P02.pdf | Miur | 7.58 MB | Adobe PDF |
Page view(s)
40
checked on Apr 26, 2024
Download(s)
16
checked on Apr 26, 2024
Google ScholarTM
Check
Altmetric
Altmetric
Items in DSpace are published in Open Access, unless otherwise indicated.