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Solar submillimeter and gamma-ray burst emission
Kaufmann, P; Raulin, JP; Melo, AM; Correia, E; Costa, JER; de Castro, CGG; Silva, AVR; Yoshimori, M; Hudson, HS; Gan, WQ; Gary, DE; Gallagher, PT; Levato, H; Marun, A; Rovira, M
AbstractSolar are emission was measured at 212 GHz in the submillimeter range by the Submillimeter Solar Telescope in the 1.2-18 GHz microwave range by the Owens Valley Solar Array and in the gamma-ray energy range (continuum) by experiments on board the Yohkoh ( > 1. 2 MeV) and Shenzhou 2 ( > 0.2 MeV) satellites. At the burst onset, the submillimeter and microwave time profiles were well correlated with gamma rays to the limit of the temporal resolution (less than or equal to10 s). At 212 GHz, fast pulses (< 1 s), defined as time structures in excess of the bulk emission, were identified as the flux increased. Their spatial positions were scattered by tens of arcseconds with respect to the main burst emission position. Correlation of submillimeter emission with gamma-ray fast time structures shorter than 500 ms is suggested at the gamma-ray maximum. The time variation of the rate of occurrence of the submillimeter rapid pulses was remarkably well correlated with gamma-ray intensities in the energy range ( > 1. 2 MeV), attaining nearly 50 pulses per minute at the maximum. These results suggest that gamma rays might be the response to multiple rapid pulses at 212 GHz and might be produced at different sites within the flaring region.
KeywordGamma Rays : Bursts Sun : Flares
Subject AreaAstronomy & Astrophysics
WOS HeadingsScience & Technology ; Physical Sciences
Indexed BySCI
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000177270400044
Citation statistics
Cited Times:19[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Affiliation1.Univ Presbiteriana Mackenzie, CRAAE, CRAAM, BR-01302907 Sao Paulo, Brazil
2.Univ Estadual Campinas, CCS, BR-13083970 Campinas, SP, Brazil
3.Rikkyo Univ, Tokyo 1718501, Japan
4.Univ Calif San Diego, Ctr Astrophys & Space Sci, La Jolla, CA 92093 USA
5.Chinese Acad Sci, Natl Astron Observ, Purple Mt Observ, Nanjing 210008, Jiangsu, Peoples R China
6.New Jersey Inst Technol, Dept Phys, Newark, NJ 07012 USA
7.Complejo Astron Leoncito, RA-5400 San Juan, Argentina
8.Inst Astron & Fis Espacio, RA-1428 Buenos Aires, DF, Argentina
Recommended Citation
GB/T 7714
Kaufmann, P,Raulin, JP,Melo, AM,et al. Solar submillimeter and gamma-ray burst emission[J]. ASTROPHYSICAL JOURNAL,2002,574(2):1059-1065.
APA Kaufmann, P.,Raulin, JP.,Melo, AM.,Correia, E.,Costa, JER.,...&Rovira, M.(2002).Solar submillimeter and gamma-ray burst emission.ASTROPHYSICAL JOURNAL,574(2),1059-1065.
MLA Kaufmann, P,et al."Solar submillimeter and gamma-ray burst emission".ASTROPHYSICAL JOURNAL 574.2(2002):1059-1065.
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