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Giménez de Castro, C.G.; Raulin, J.-P.; Valle Silva, J.F.; Simões, P.J.A.; Kudaka, A.S.; Valio, A. "The 6 September 2017 X9 Super Flare Observed From Submillimeter to Mid-IR" (2018) Space Weather. 16(9):1261-1268
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Abstract:

Active Region 12673 is the most productive active region of solar cycle 24: in a few days of early September 2017, four X-class and 27 M-class flares occurred. SOL2017-09-06T12:00, an X9.3 flare also produced a two-ribbon white light emission across the sunspot detected by Solar Dynamics Orbiter/Helioseismic and Magnetic Imager. The flare was observed at 212 and 405 GHz with the arcminute-sized beams of the Solar Submillimeter Telescope focal array while making a solar map and at 10 μm, with a 17 arcsec diffraction-limited infrared camera. Images at 10 μm revealed that the sunspot gradually increased in brightness while the event proceeded, reaching a temperature similar to quiet Sun values. From the images we derive a lower bound limit of 180-K flare peak excess brightness temperature or 7,000 sfu if we consider a similar size as the white light source. The rising phase of mid-IR and white light is similar, although the latter decays faster, and the maximum of the mid-IR and white light emission is ∼200 s delayed from the 15.4-GHz peak occurrence. The submillimeter spectrum has a different origin than that of microwaves from 1 to 15 GHz, although it is not possible to draw a definitive conclusion about its emitting mechanism. ©2018. American Geophysical Union. All Rights Reserved.

Registro:

Documento: Artículo
Título:The 6 September 2017 X9 Super Flare Observed From Submillimeter to Mid-IR
Autor:Giménez de Castro, C.G.; Raulin, J.-P.; Valle Silva, J.F.; Simões, P.J.A.; Kudaka, A.S.; Valio, A.
Filiación:Centro de Rádio Astronomia e Astrofísica Mackenzie, Escola de Engenharia, Universidade Presbiteriana Mackenzie, São Paulo, Brazil
Instituto de Astronomía y Física del Espacio, CONICET, Buenos Aires, Argentina
SUPA School of Physics and Astronomy, University of Glasgow, Glasgow, United Kingdom
Año:2018
Volumen:16
Número:9
Página de inicio:1261
Página de fin:1268
DOI: http://dx.doi.org/10.1029/2018SW001969
Título revista:Space Weather
Título revista abreviado:Space Weather
ISSN:15427390
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15427390_v16_n9_p1261_GimenezdeCastro

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Citas:

---------- APA ----------
Giménez de Castro, C.G., Raulin, J.-P., Valle Silva, J.F., Simões, P.J.A., Kudaka, A.S. & Valio, A. (2018) . The 6 September 2017 X9 Super Flare Observed From Submillimeter to Mid-IR. Space Weather, 16(9), 1261-1268.
http://dx.doi.org/10.1029/2018SW001969
---------- CHICAGO ----------
Giménez de Castro, C.G., Raulin, J.-P., Valle Silva, J.F., Simões, P.J.A., Kudaka, A.S., Valio, A. "The 6 September 2017 X9 Super Flare Observed From Submillimeter to Mid-IR" . Space Weather 16, no. 9 (2018) : 1261-1268.
http://dx.doi.org/10.1029/2018SW001969
---------- MLA ----------
Giménez de Castro, C.G., Raulin, J.-P., Valle Silva, J.F., Simões, P.J.A., Kudaka, A.S., Valio, A. "The 6 September 2017 X9 Super Flare Observed From Submillimeter to Mid-IR" . Space Weather, vol. 16, no. 9, 2018, pp. 1261-1268.
http://dx.doi.org/10.1029/2018SW001969
---------- VANCOUVER ----------
Giménez de Castro, C.G., Raulin, J.-P., Valle Silva, J.F., Simões, P.J.A., Kudaka, A.S., Valio, A. The 6 September 2017 X9 Super Flare Observed From Submillimeter to Mid-IR. Space Weather. 2018;16(9):1261-1268.
http://dx.doi.org/10.1029/2018SW001969