SOLAR-T : Terahertz photometers to observe solar flare emission on stratospheric balloon flights

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dc.contributor.authorKaufmann P.
dc.contributor.authorAbrantes A.
dc.contributor.authorBortolucci E.C.
dc.contributor.authorCorreia E.
dc.contributor.authorDiniz J.A.
dc.contributor.authorFernandez G.
dc.contributor.authorFernandes L.O.T.
dc.contributor.authorGimenez De Castro C.G.
dc.contributor.authorGodoy R.
dc.contributor.authorHurford G.
dc.contributor.authorKudaka A.S.
dc.contributor.authorLebedev M.
dc.contributor.authorLin R.P.
dc.contributor.authorMacHado N.
dc.contributor.authorMakhmutov V.S.
dc.contributor.authorMarcon R.
dc.contributor.authorMarun A.
dc.contributor.authorNicolaev V.A.
dc.contributor.authorPereyra P.
dc.contributor.authorRaulin J.-P.
dc.contributor.authorDa Silva C.M.
dc.contributor.authorShih A.
dc.contributor.authorStozkhov Y.I.
dc.contributor.authorSwart J.W.
dc.contributor.authorTimofeevsky A.V.
dc.contributor.authorValio A.
dc.contributor.authorVillelad T.
dc.contributor.authorZakia M.B.
dc.date.accessioned2024-03-13T01:06:53Z
dc.date.available2024-03-13T01:06:53Z
dc.date.issued2012
dc.description.abstractA new solar flare spectral component has been found with intensities increasing for larger sub-THz frequencies, spectrally separated from the well known microwaves component, bringing challenging constraints for interpretation. Higher THz frequencies observations are needed to understand the nature of the mechanisms occurring in flares. A twofrequency THz photometer system was developed to observe outside the terrestrial atmosphere on stratospheric balloons or satellites, or at exceptionally transparent ground stations. 76 mm diameter telescopes were designed to observe the whole solar disk detecting small relative changes in input temperature caused by flares at localized positions at 3 and 7 THz. Golay cell detectors are preceded by low-pass filters to suppress visible and near IR radiation, band-pass filters, and choppers. It can detect temperature variations smaller than 1 K with time resolution of a fraction of a second, corresponding to small burst intensities. The telescopes are being assembled in a thermal controlled box to which a data conditioning and acquisition unit is coupled. While all observations are stored on board, a telemetry system will forward solar activity compact data to the ground station. The experiment is planned to fly on board of long-duration stratospheric balloon flights some time in 2013-2015. One will be coupled to the GRIPS gamma-ray experiment in cooperation with University of California, Berkeley, USA. One engineering flight will be flown in the USA, and a 2 weeks flight is planned over Antarctica in southern hemisphere summer. Another long duration stratospheric balloon flight over Russia (one week) is planned in cooperation with the Lebedev Physics Institute, Moscow, in northern hemisphere summer. © 2012 SPIE.
dc.description.volume8442
dc.identifier.doi10.1117/12.926072
dc.identifier.urihttps://dspace.mackenzie.br/handle/10899/36741
dc.relation.ispartofProceedings of SPIE - The International Society for Optical Engineering
dc.rightsAcesso Restrito
dc.subject.otherlanguageSolar flares
dc.subject.otherlanguageStratospheric balloon platform
dc.subject.otherlanguageTHz detectors
dc.subject.otherlanguageTHz filters
dc.subject.otherlanguageTHz photometers
dc.titleSOLAR-T : Terahertz photometers to observe solar flare emission on stratospheric balloon flights
dc.typeArtigo de evento
local.scopus.citations3
local.scopus.eid2-s2.0-84871844157
local.scopus.subjectAntarctica
local.scopus.subjectBand pass
local.scopus.subjectCooperation with university
local.scopus.subjectGolay cells
local.scopus.subjectGround stations
local.scopus.subjectLocalized positions
local.scopus.subjectLong duration
local.scopus.subjectNorthern Hemispheres
local.scopus.subjectSolar activity
local.scopus.subjectSolar disk
local.scopus.subjectSolar flare
local.scopus.subjectSouthern Hemisphere
local.scopus.subjectSpectral components
local.scopus.subjectStratospheric balloon
local.scopus.subjectTelemetry systems
local.scopus.subjectTemperature variation
local.scopus.subjectTera Hertz
local.scopus.subjectTHz detectors
local.scopus.subjectTHz filters
local.scopus.subjectTHz frequencies
local.scopus.subjectTime resolution
local.scopus.updated2024-05-01
local.scopus.urlhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84871844157&origin=inward
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