First high resolution interferometric observation of a solar prominence with ALMA

dc.contributor.authorLabrosse N.
dc.contributor.authorRodger A.S.
dc.contributor.authorRadziszewski K.
dc.contributor.authorRudawy P.
dc.contributor.authorAntolin P.
dc.contributor.authorFletcher L.
dc.contributor.authorLevens P.J.
dc.contributor.authorPeat A.W.
dc.contributor.authorSchmieder B.
dc.contributor.authorSimoes P.J.A.
dc.date.accessioned2024-03-12T19:14:52Z
dc.date.available2024-03-12T19:14:52Z
dc.date.issued2022
dc.description.abstract© 2022 The Author(s) 2022. Published by Oxford University Press on behalf of Royal Astronomical Society.We present the first observation of a solar prominence at 84 - 116 GHz using the high resolution interferometric imaging of ALMA. Simultaneous observations in Hα from Białkaw Observatory and with SDO/AIA reveal similar prominence morphology to the ALMA observation. The contribution functions of 3 mm and Hα emission are shown to have significant overlap across a range of gas pressures. We estimate the maximum millimetre-continuum optical thickness to be τ3mm ≈ 2, and the brightness temperature from the observed Hα intensity. The brightness temperature measured by ALMA is ∼6000 - 7000 K in the prominence spine, which correlates well with the estimated brightness temperature for a kinetic temperature of 8000 K.
dc.description.firstpageL30
dc.description.issuenumber1
dc.description.lastpageL34
dc.description.volume513
dc.identifier.doi10.1093/mnrasl/slac021
dc.identifier.issn1745-3933
dc.identifier.urihttps://dspace.mackenzie.br/handle/10899/34357
dc.relation.ispartofMonthly Notices of the Royal Astronomical Society: Letters
dc.rightsAcesso Aberto
dc.subject.otherlanguageprominences
dc.subject.otherlanguageSun: filaments
dc.titleFirst high resolution interferometric observation of a solar prominence with ALMA
dc.typeArtigo
local.scopus.citations5
local.scopus.eid2-s2.0-85128706718
local.scopus.updated2024-06-01
local.scopus.urlhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85128706718&origin=inward
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