Terahertz Photometer to Observe Solar Flares in Continuum

dc.creatorMarcon, R
dc.creatorKaufmann, P
dc.creatorFernandes, LOT
dc.creatorGodoy, R
dc.creatorMarun, A
dc.creatorBortolucci, EC
dc.creatorZakia, MB
dc.creatorDiniz, JA
dc.creatorKudaka, AS
dc.date2012
dc.dateFEB
dc.date2014-08-01T18:24:55Z
dc.date2015-11-26T17:03:52Z
dc.date2014-08-01T18:24:55Z
dc.date2015-11-26T17:03:52Z
dc.date.accessioned2018-03-28T23:52:05Z
dc.date.available2018-03-28T23:52:05Z
dc.identifierJournal Of Infrared Millimeter And Terahertz Waves. Springer, v. 33, n. 2, n. 192, n. 205, 2012.
dc.identifier1866-6892
dc.identifierWOS:000301541300008
dc.identifier10.1007/s10762-011-9866-6
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/78575
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/78575
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1279203
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionSolar observations at sub-THz frequencies detected a new flare spectral component peaking in the THz range, simultaneously with 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 THz photometer system was developed to observe outside the terrestrial atmosphere on stratospheric balloons or satellites, or at exceptionally transparent ground stations. The telescope was designed to observe the whole solar disk detecting small relative changes in input temperature caused by flares at localized positions. A Golay cell detector is preceded by low-pass filters to suppress visible and near IR radiation, a band-pass filter, and a chopper. A prototype was assembled to demonstrate the new concept and the system performance. It can detect temperature variations smaller than 1 K for data sampled at a rate of 10/s, smoothed for intervals larger than 4 s. For a 76 mm aperture, this corresponds to small solar burst intensities at THz frequencies. A system with 3 and 7 THz photometers is being built for solar flare observations on board of stratospheric balloon missions.
dc.description33
dc.description2
dc.description192
dc.description205
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionMackpesquisa
dc.descriptionArgentina agency CONICET
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.languageen
dc.publisherSpringer
dc.publisherNew York
dc.publisherEUA
dc.relationJournal Of Infrared Millimeter And Terahertz Waves
dc.relationJ. Infrared Millim. Terahertz Waves
dc.rightsfechado
dc.rightshttp://www.springer.com/open+access/authors+rights?SGWID=0-176704-12-683201-0
dc.sourceWeb of Science
dc.subjectTHz Photometry
dc.subjectTHz systems
dc.subjectSolar flares THz continuum
dc.subjectSpectral Component
dc.subjectRadiation
dc.titleTerahertz Photometer to Observe Solar Flares in Continuum
dc.typeArtículos de revistas


Este ítem pertenece a la siguiente institución