Thz Solar Telescope For Detection Flare Synchrotron Radiation

dc.creatorKaufmann P.
dc.creatorKlopf J.M.
dc.date2011
dc.date2015-06-30T20:28:07Z
dc.date2015-11-26T14:49:40Z
dc.date2015-06-30T20:28:07Z
dc.date2015-11-26T14:49:40Z
dc.date.accessioned2018-03-28T22:00:44Z
dc.date.available2018-03-28T22:00:44Z
dc.identifier9781424451173
dc.identifier2011 30th Ursi General Assembly And Scientific Symposium, Ursigass 2011. , v. , n. , p. - , 2011.
dc.identifier
dc.identifier10.1109/URSIGASS.2011.6051301
dc.identifierhttp://www.scopus.com/inward/record.url?eid=2-s2.0-81255140199&partnerID=40&md5=2a29b18c2350c2c5bbd52f3d53f6f7a5
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/108045
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/108045
dc.identifier2-s2.0-81255140199
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1253970
dc.descriptionRecent solar flare observations have shown the existence of a spectral component exhibiting fluxes increasing with frequency in the sub-THz spectrum simultaneously with the well known spectral component peaking at microwaves bringing challenging constraints for interpretation. This double spectral feature cannot be well explained by existing models. One possibility is to associate the high frequency emissions to incoherent synchrotron radiation (ISR) produced by flare accelerated beams of high energy electrons with intensity peaking at THz frequencies. Certain wave-particle instabilities may set in the electron beam, giving rise to bunching of the electrons which could radiate powerful broadband coherent synchrotron radiation (CSR) in the microwave spectrum peaking at wavelengths comparable to the size of the bunching. Although this CSR process has been observed in laboratory accelerators, only now has its association to solar flare physics been explored. Simulations have shown that the mechanism may be extremely efficient and highly localized in solar flares. To demonstrate the high energy ISR emission in flares it is necessary to measure the complete continuum spectra at higher THz frequencies, outside the terrestrial atmosphere. A THz telescope has been developed with a 75 mm primary reflector with rough surface to diffuse part of the incoming visible and near IR radiation. Golay cell detectors are preceded by low-pass membranes and band-pass metal mesh resonant filters tuned at 3 and 7 THz. © 2011 IEEE.
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dc.languageen
dc.publisher
dc.relation2011 30th URSI General Assembly and Scientific Symposium, URSIGASS 2011
dc.rightsfechado
dc.sourceScopus
dc.titleThz Solar Telescope For Detection Flare Synchrotron Radiation
dc.typeActas de congresos


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