New Telescopes For Ground-based Solar Observations At Sub-millimeter And Mid-infrared

dc.creatorKaufmann P.
dc.creatorLevato H.
dc.creatorCassiano M.M.
dc.creatorCorreia E.
dc.creatorCosta J.E.R.
dc.creatorDe Castro C.G.G.
dc.creatorGodoy R.
dc.creatorKingsley R.K.
dc.creatorKingsley J.S.
dc.creatorKudaka A.S.
dc.creatorMarcon R.
dc.creatorMartin R.
dc.creatorMarun A.
dc.creatorMelo A.M.
dc.creatorPereyra P.
dc.creatorRaulin J.-P.
dc.creatorRose T.
dc.creatorValio A.S.
dc.creatorWalber A.
dc.creatorWallace P.
dc.creatorYakubovich A.
dc.creatorZakia M.B.
dc.date2008
dc.date2015-06-30T19:18:50Z
dc.date2015-11-26T14:41:54Z
dc.date2015-06-30T19:18:50Z
dc.date2015-11-26T14:41:54Z
dc.date.accessioned2018-03-28T21:49:10Z
dc.date.available2018-03-28T21:49:10Z
dc.identifier9780819472229
dc.identifierProceedings Of Spie - The International Society For Optical Engineering. , v. 7012, n. , p. - , 2008.
dc.identifier0277786X
dc.identifier10.1117/12.788889
dc.identifierhttp://www.scopus.com/inward/record.url?eid=2-s2.0-66749122523&partnerID=40&md5=f9f28e14de1b55d059b84c85c62ee80f
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/105713
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/105713
dc.identifier2-s2.0-66749122523
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1251052
dc.descriptionThe solar submillimeter-wave telescope (SST) is the only one of its kind dedicated to solar continuous observations. Two radiometers at 0.740 mm (405 GHz), and four at 1.415 mm (212 GHz) are placed in the Cassegrain focal plane of the 1.5-m dish at El Leoncito high altitude site, San Juan, Argentina. The aperture efficiencies are close to design predictions: 20% and 35% for 2 and 4 arcminutes beam sizes at 405 and 212 GHz, respectively. The positioner absolute pointing accuracy is 10 arcseconds. Spectral coverage is complemented by ground-based mid-infrared telescopes developed for high cadence observations in the continuum 10 micron band (30 THz), using small apertures and roomtemperature microbolometer cameras. Using the system, a new solar burst spectral component was discovered, exhibiting fluxes increasing for smaller wavelengths, separated from the well known microwave component. Rapid subsecond pulsations are common for all bursts. The pulsations onset times of appear to be connected to the launch times of CMEs. Active regions are brighter for shorter submillimeter-waves. Mid-IR bright regions are found closely associated with calcium plages and magnetic structures near the solar photosphere. Intense and rapid 10 micron brightening was detected on active centers in association with weak flares. These results raise challenging difficulties for interpretation.
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dc.languageen
dc.publisher
dc.relationProceedings of SPIE - The International Society for Optical Engineering
dc.rightsaberto
dc.sourceScopus
dc.titleNew Telescopes For Ground-based Solar Observations At Sub-millimeter And Mid-infrared
dc.typeActas de congresos


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