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Kaufmann, P.; Raulin, J.-P.; Correia, E.; Costa, J.E.R.; Giménez De Castro, C.G.; Silva, A.V.R.; Levato, H.; Rovira, M.; Mandrini, C.; Fernández-Borda, R.; Bauer, O.H. "Rapid submillimeter brightenings associated with a large solar flare" (2001) Astrophysical Journal. 548(1 PART 2):L95-L98
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Abstract:

We present high time resolution observations of Active Region 8910 obtained simultaneously at 212 and 405 GHz during a large Ha flare, which produced a soft X-ray class X1.1 event. Data were obtained with the new solar submillimeter telescope recently installed at the El Leoncito Observatory to explore this poorly known part of the solar emission spectrum. A small slow submillimeter enhancement (≤300 sfu) was associated to bulk emissions at X-rays, Hα, and microwaves. The event exhibited numerous submillimeter-wave 100-300 ms duration spikes, the larger ones with fluxes on the order of 220 and 500 sfu (±20%) at 212 and 405 GHz, respectively. A dramatic increase in the incidence rate of submillimeter spikes sets in as a new large loop system appears in AR 8910, and X-ray emission increases nearly 1 hr before the large flare. The brightening incidence rate (∼20 per minute) correlates well with the large flare light curves at X-rays and Hα. The submillimeter spikes may be associated to microflares, waves, or quakes in flaring active regions.

Registro:

Documento: Artículo
Título:Rapid submillimeter brightenings associated with a large solar flare
Autor:Kaufmann, P.; Raulin, J.-P.; Correia, E.; Costa, J.E.R.; Giménez De Castro, C.G.; Silva, A.V.R.; Levato, H.; Rovira, M.; Mandrini, C.; Fernández-Borda, R.; Bauer, O.H.
Filiación:CRAAM/CRAAE, Universidade Presbiteriana Mackenzie, Rua da Consolação 896, São Paulo, SP-013202-907, Brazil
Complejo Astron. El Leoncito, Casilla de Correo 467, San Juan 5400, Argentina
Inst. Astronomia y Fis. del Espacio, Casilla de Correo 67, Buenos Aires 1428, Argentina
Max-Planck-Inst. E., Giessenbachstrasse Postfach 1603, Garching, D-85740, Germany
Palabras clave:Sun: flares; Sun: radio radiation
Año:2001
Volumen:548
Número:1 PART 2
Página de inicio:L95
Página de fin:L98
DOI: http://dx.doi.org/10.1086/318932
Título revista:Astrophysical Journal
Título revista abreviado:Astrophys. J.
ISSN:0004637X
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0004637X_v548_n1PART2_pL95_Kaufmann

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Citas:

---------- APA ----------
Kaufmann, P., Raulin, J.-P., Correia, E., Costa, J.E.R., Giménez De Castro, C.G., Silva, A.V.R., Levato, H.,..., Bauer, O.H. (2001) . Rapid submillimeter brightenings associated with a large solar flare. Astrophysical Journal, 548(1 PART 2), L95-L98.
http://dx.doi.org/10.1086/318932
---------- CHICAGO ----------
Kaufmann, P., Raulin, J.-P., Correia, E., Costa, J.E.R., Giménez De Castro, C.G., Silva, A.V.R., et al. "Rapid submillimeter brightenings associated with a large solar flare" . Astrophysical Journal 548, no. 1 PART 2 (2001) : L95-L98.
http://dx.doi.org/10.1086/318932
---------- MLA ----------
Kaufmann, P., Raulin, J.-P., Correia, E., Costa, J.E.R., Giménez De Castro, C.G., Silva, A.V.R., et al. "Rapid submillimeter brightenings associated with a large solar flare" . Astrophysical Journal, vol. 548, no. 1 PART 2, 2001, pp. L95-L98.
http://dx.doi.org/10.1086/318932
---------- VANCOUVER ----------
Kaufmann, P., Raulin, J.-P., Correia, E., Costa, J.E.R., Giménez De Castro, C.G., Silva, A.V.R., et al. Rapid submillimeter brightenings associated with a large solar flare. Astrophys. J. 2001;548(1 PART 2):L95-L98.
http://dx.doi.org/10.1086/318932