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Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/6993
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dc.contributor.authorSu, H.-
dc.contributor.authorDwarakanath, K.S.-
dc.contributor.author+21 authors-
dc.date.accessioned2018-09-04T15:28:42Z-
dc.date.available2018-09-04T15:28:42Z-
dc.date.issued2018-09-21-
dc.identifier.citationMonthly Notices of the Royal Astronomical Society, 2018, Vol. 479, p 4041-4055en_US
dc.identifier.issn0035-8711-
dc.identifier.issn1365-2966 - (online)-
dc.identifier.urihttp://hdl.handle.net/2289/6993-
dc.descriptionOpen Accessen_US
dc.description.abstractWe derive the synchrotron distribution in the Milky Way disc from H II region absorption observations over −40° < l < 40° at six frequencies of 76.2, 83.8, 91.5, 99.2, 106.9, and 114.6 MHz with the GaLactic and Extragalactic All-sky Murchison widefield array survey (GLEAM). We develop a new method of emissivity calculation by taking advantage of the Haslam et al. (1981) map and known spectral indices, which enable us to simultaneously derive the emissivity and the optical depth of H II regions at each frequency. We show our derived synchrotron emissivities based on 152 absorption features of H II regions using both the method previously adopted in the literature and our improved method. We derive the synchrotron emissivity from H II regions to the Galactic edge along the line of sight and, for the first time, derive the emissivity from H II regions to the Sun. These results provide direct information on the distribution of the Galactic magnetic field and cosmic ray electrons for future modelling.en_US
dc.language.isoenen_US
dc.publisherOxford University Press for The Royal Astronomical Societyen_US
dc.relation.urihttps://arxiv.org/abs/1806.10611en_US
dc.relation.urihttps://doi.org/10.1093/mnras/sty1732en_US
dc.rights2018 The authorsen_US
dc.subjectcosmic raysen_US
dc.subjectH II regionsen_US
dc.subjectGalaxyen_US
dc.subjectstructureen_US
dc.subjectradio continuumen_US
dc.subjectgeneralen_US
dc.titleGalactic synchrotron distribution derived from 152 H II region absorption features in the full GLEAM surveyen_US
dc.typeArticleen_US
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