Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/27780
DC Field | Value | Language |
---|---|---|
dc.contributor.author | For, B. -Q. | en_US |
dc.contributor.author | Staveley-Smith, L. | en_US |
dc.contributor.author | Hurley-Walker, N. | en_US |
dc.contributor.author | Franzen, T. | en_US |
dc.contributor.author | Kapińska, A. D. | en_US |
dc.contributor.author | Filipović, M. D. | en_US |
dc.contributor.author | Collier, J. D. | en_US |
dc.contributor.author | Wu, C. | en_US |
dc.contributor.author | Grieve, K. | en_US |
dc.contributor.author | Callingham, J. R. | en_US |
dc.contributor.author | Bell, M. E. | en_US |
dc.contributor.author | BERNARDI, GIANNI | en_US |
dc.contributor.author | Bowman, J. D. | en_US |
dc.contributor.author | Briggs, F. | en_US |
dc.contributor.author | Cappallo, R. J. | en_US |
dc.contributor.author | Deshpande, A. A. | en_US |
dc.contributor.author | Dwarakanath, K. S. | en_US |
dc.contributor.author | Gaensler, B. M. | en_US |
dc.contributor.author | Greenhill, L. J. | en_US |
dc.contributor.author | Hancock, P. | en_US |
dc.contributor.author | Hazelton, B. J. | en_US |
dc.contributor.author | Hindson, L. | en_US |
dc.contributor.author | Johnston-Hollitt, M. | en_US |
dc.contributor.author | Kaplan, D. L. | en_US |
dc.contributor.author | Lenc, E. | en_US |
dc.contributor.author | Lonsdale, C. J. | en_US |
dc.contributor.author | McKinley, B. | en_US |
dc.contributor.author | McWhirter, S. R. | en_US |
dc.contributor.author | Mitchell, D. A. | en_US |
dc.contributor.author | Morales, M. F. | en_US |
dc.contributor.author | Morgan, E. | en_US |
dc.contributor.author | Morgan, J. | en_US |
dc.contributor.author | Oberoi, D. | en_US |
dc.contributor.author | Offringa, A. | en_US |
dc.contributor.author | Ord, S. M. | en_US |
dc.contributor.author | Prabu, T. | en_US |
dc.contributor.author | Procopio, P. | en_US |
dc.contributor.author | Shankar, N. Udaya | en_US |
dc.contributor.author | Srivani, K. S. | en_US |
dc.contributor.author | Subrahmanyan, R. | en_US |
dc.contributor.author | Tingay, S. J. | en_US |
dc.contributor.author | Wayth, R. B. | en_US |
dc.contributor.author | Webster, R. L. | en_US |
dc.contributor.author | Williams, A. | en_US |
dc.contributor.author | Williams, C. L. | en_US |
dc.contributor.author | Zheng, Q. | en_US |
dc.date.accessioned | 2020-10-13T16:01:25Z | - |
dc.date.available | 2020-10-13T16:01:25Z | - |
dc.date.issued | 2018 | en_US |
dc.identifier.issn | 0035-8711 | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/27780 | - |
dc.description.abstract | We present the first low-frequency Murchison Widefield Array (MWA) radio continuum maps of the Magellanic Clouds (MCs), using mosaics from the GaLactic Extragalactic All-Sky MWA (GLEAM) survey. In this paper, we discuss the overall radio continuum morphology between 76 and 227 MHz and compare them with neutral hydrogen maps, 1.4 GHz continuum maps and optical images. Variation of diffuse emission is noticeable across the Large Magellanic Cloud (LMC) but absent across the bar of the Small Magellanic Cloud (SMC). We also measure the integrated flux densities and derive the spectral indices for the MCs. A double power-law model with fixed α<SUB>1</SUB> = -0.1 fit between 19.7 MHz and 8.55 GHz yields α<SUB>0</SUB> = -0.66 ± 0.08 for the LMC. A power-law model yields α _{8.55 GHz}^{85.5 MHz} = -0.82± 0.03 for the SMC. The radio spectral index maps reveal distinctive flat and steep spectral indices for the H II regions and supernova remnants, respectively. We find strong correlation between H II regions and H<SUB>α</SUB> emission. Using a new 150 MHz-H<SUB>α</SUB> relation as a star formation rate indicator, we estimate global star formation rates of 0.068-0.161 M<SUB>☉</SUB> yr<SUP>-1</SUP> and 0.021-0.050 M<SUB>☉</SUB> yr<SUP>-1</SUP> for the LMC and SMC, respectively. Images in 20 frequency bands, and wideband averages are made available via the GLEAM virtual observatory server. | en_US |
dc.language.iso | eng | en_US |
dc.title | A multifrequency radio continuum study of the Magellanic Clouds - I. Overall structure and star formation rates | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.1093/mnras/sty1960 | en_US |
dc.identifier.scopus | 2-s2.0-85055159832 | en_US |
dc.identifier.isi | 000449614800102 | en_US |
dc.identifier.url | https://academic.oup.com/mnras/article/480/2/2743/5057489 | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 480 | en_US |
dc.relation.issue | 2 | en_US |
dc.relation.firstpage | 2743 | en_US |
dc.type.referee | REF_1 | en_US |
dc.description.international | sì | en_US |
dc.contributor.country | ITA | en_US |
dc.contributor.country | USA | en_US |
dc.contributor.country | AUS | 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.480.2743F | en_US |
dc.relation.ercsector | ERC sectors::Physical Sciences and Engineering::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.orcid | 0000-0002-0916-7443 | - |
crisitem.journal.journalissn | 0035-8711 | - |
crisitem.journal.ance | E112946 | - |
Appears in Collections: | 1.01 Articoli in rivista |
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