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dc.contributor.CRUESPUniversidade Estadual de Campinaspt_BR
dc.typeArtigo de periódicopt_BR
dc.titleRAPID PULSATIONS IN SUB-THz SOLAR BURSTSpt_BR
dc.contributor.authorKaufmann, Ppt_BR
dc.contributor.authorde Castro, CGGpt_BR
dc.contributor.authorCorreia, Ept_BR
dc.contributor.authorCosta, JERpt_BR
dc.contributor.authorRaulin, JPpt_BR
dc.contributor.authorValio, ASpt_BR
unicamp.authorKaufmann, Pierre Gimenez de Castro, C. Guillermo Correia, Emilia Raulin, Jean-Pierre Valio, Adriana Silva Univ Presbiteriana Mackenzie, Escola Engn, Ctr Radio Astron & Astrofis Mackenzie, BR-01302907 Sao Paulo, Brazilpt_BR
unicamp.authorKaufmann, Pierre Univ Estadual Campinas, Ctr Componentes Semicond, BR-13981970 Campinas, SP, Brazilpt_BR
unicamp.authorCorreia, Emilia Costa, Joaquim E. R. Inst Nacl Pesquisas Espaciais, BR-12227010 Sao Jose Dos Campos, SP, Brazilpt_BR
dc.subjectacceleration of particlespt_BR
dc.subjectMHDpt_BR
dc.subjectradiation mechanisms: non-thermalpt_BR
dc.subjectSun: flarespt_BR
dc.subjectSun: oscillationspt_BR
dc.subjectSun: radio radiationpt_BR
dc.subject.wosHard X-rayspt_BR
dc.subject.wosMicrowave-burstspt_BR
dc.subject.wosRadio-burstspt_BR
dc.subject.wosSpectral Componentpt_BR
dc.subject.wosTime Structurespt_BR
dc.subject.wosWavelet Analysispt_BR
dc.subject.wosHigh-frequencypt_BR
dc.subject.wosFlarept_BR
dc.subject.wosEmissionpt_BR
dc.subject.wosSubmillimeterpt_BR
dc.description.abstractA new solar burst emission spectral component has been found showing sub-THz fluxes increasing with frequency, spectrally separated from the well known microwave component. Rapid pulsations are found present in all events observed at the two frequencies of the solar submillimeter-wave telescope: 212 and 405 GHz. They were studied in greater detail for three solar bursts exhibiting the new THz spectral component. The pulse amplitudes are of about 5%-8% of the mean flux throughout the bursts durations, being comparable for both frequencies. Pulsations range from one pulse every few seconds to 8-10 per second. The pulse repetition rates (R) are linearly proportional to the mean burst fluxes (S), following the simple relationship S = kR, suggesting that the pulsations might be the response to discrete flare particle accelerator injections quantized in energy. Although this result is consistent with qualitative trends previously found in the GHz range, the pulse amplitude relative to the mean fluxes at the sub-THz frequencies appear to be nearly ten times smaller than expected from the extrapolation of the trends found in the GHz range. However there are difficulties to reconcile the nearly simultaneous GHz and THz burst emission spectrally separated components, exhibiting rapid pulsations with considerably larger relative intensities in the GHz range.pt
dc.relation.ispartofAstrophysical Journalpt_BR
dc.relation.ispartofabbreviationAstrophys. J.pt_BR
dc.publisher.cityBristolpt_BR
dc.publisher.countryInglaterrapt_BR
dc.publisherIop Publishing Ltdpt_BR
dc.date.issued2009pt_BR
dc.date.monthofcirculationMAY 20pt_BR
dc.identifier.citationAstrophysical Journal. Iop Publishing Ltd, v. 697, n. 1, n. 420, n. 427, 2009.pt_BR
dc.language.isoenpt_BR
dc.description.volume697pt_BR
dc.description.issuenumber1pt_BR
dc.description.firstpage420pt_BR
dc.description.lastpage427pt_BR
dc.rightsabertopt_BR
dc.rights.licensehttp://iopscience.iop.org/page/copyrightpt_BR
dc.sourceWeb of Sciencept_BR
dc.identifier.issn0004-637Xpt_BR
dc.identifier.wosidWOS:000265764000035pt_BR
dc.identifier.doi10.1088/0004-637X/697/1/420pt_BR
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)pt_BR
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)pt_BR
dc.description.sponsorshipMackpesquisapt_BR
dc.description.sponsorshipCONICETpt_BR
dc.description.sponsorship1Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)pt_BR
dc.description.sponsorship1Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)pt_BR
dc.date.available2014-07-30T14:19:26Z
dc.date.available2015-11-26T17:40:37Z-
dc.date.accessioned2014-07-30T14:19:26Z
dc.date.accessioned2015-11-26T17:40:37Z-
dc.description.provenanceMade available in DSpace on 2014-07-30T14:19:26Z (GMT). No. of bitstreams: 0 Previous issue date: 2009en
dc.description.provenanceMade available in DSpace on 2015-11-26T17:40:37Z (GMT). No. of bitstreams: 2 WOS000265764000035.pdf: 890085 bytes, checksum: 9da2ae493a28303c978ebe902377c7a0 (MD5) WOS000265764000035.pdf.txt: 32675 bytes, checksum: 94e8af7a57fa25dfc264fa658645a169 (MD5) Previous issue date: 2009en
dc.identifier.urihttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/58892
dc.identifier.urihttp://repositorio.unicamp.br/jspui/handle/REPOSIP/58892-
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