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
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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
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Año: | 2018
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Volumen: | 16
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Número: | 9
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Página de inicio: | 1261
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Página de fin: | 1268
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DOI: |
http://dx.doi.org/10.1029/2018SW001969 |
Título revista: | Space Weather
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Título revista abreviado: | Space Weather
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ISSN: | 15427390
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Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15427390_v16_n9_p1261_GimenezdeCastro |
Referencias:
- Cristiani, G., Martinez, G., Mandrini, C.H., Giménez de Castro, C.G., da Silva, C.W., Rovira, M.G., Kaufmann, P., Spatial characterization of a flare using radio observations and magnetic field topology (2007) Solar Physics, 240, pp. 271-281. , https://doi.org/10.1007/s11207-006-0337-5
- Giménez de Castro, C.G., Trottet, G., Silva-Valio, A., Krucker, S., Costa, J.E.R., Kaufmann, P., Submillimeter and X-ray observations of an X class flare (2009) Astronomy & Astrophysics, 507, pp. 433-439. , https://doi.org/10.1051/0004-6361/200912028
- Goryaev, F.F., Slemzin, V.A., Rodkin, D.G., D'Huys, E., Podladchikova, O., West, M.J., Brightening and darkening of the extended solar corona during the superflares of September 2017 (2018) Astrophysical Journal, 856, p. L38. , https://doi.org/10.3847/2041-8213/aab849
- Kaufmann, P., Abrantes, A., Bortolucci, E., Caspi, A., Fernandes, L.O.T., Kropotov, G., Solar observations at THz frequencies on board of a trans-Antartic stratospheric balloon flight (2016) AAS/Solar Physics Division Meeting, 47, p. 11
- Kaufmann, P., Levato, H., Cassiano, M.M., Correia, E., Costa, J.E.R., Giménez de Castro, C.G., New telescopes for ground-based solar observations at submillimeter and mid-infrared (2008) Ground-based and Airborne Telescopes II, 7012, p. 70120L. , https://doi.org/10.1117/12.788889
- Kaufmann, P., Raulin, J.-P., de Castro, C.G.G., Levato, H., Gary, D.E., Costa, J.E.R., A new solar burst spectral component emitting only in the terahertz range (2004) Astrophysical Journal, 603, p. L121. , https://doi.org/10.1086/383186
- Kaufmann, P., Trottet, G., Giménez de Castro, C.G., Raulin, J.-P., Krucker, S., Shih, A.Y., Levato, H., Sub-terahertz, microwaves and high energy emissions during the 6 December 2006 flare, at 18:40 UT (2009) Solar Physics, 255, pp. 131-142. , https://doi.org/10.1007/s11207-008-9312-7
- Kaufmann, P., White, S.M., Freeland, S.L., Marcon, R., Fernandes, L.O.T., Kudaka, A.S., A bright impulsive solar burst detected at 30 THz (2013) Astrophysical Journal, 768, p. 134. , https://doi.org/10.1088/0004-637X/768/2/134
- Kaufmann, P., White, S.M., Marcon, R., Kudaka, A.S., Cabezas, D.P., Cassiano, M.M., Bright 30 THz impulsive solar bursts (2015) Journal of Geophysical Research: Space Physics, 120, pp. 4155-4163. , https://doi.org/10.1002/2015JA021313
- Klein, K.-L., Trottet, G., Gyrosynchrotron radiation from a source with spatially varying field and density (1984) Astronomy & Astrophysics, 141, pp. 67-76
- Kolotkov, D.Y., Pugh, C.E., Broomhall, A.-M., Nakariakov, V.M., Quasi-periodic pulsations in the most powerful solar flare of cycle 24 (2018) Astrophysical Journal, 858, p. L3. , https://doi.org/10.3847/2041-8213/aabde9
- Krucker, S., Giménez de Castro, C.G., Hudson, H.S., Trottet, G., Bastian, T.S., Hales, A.S., Solar flares at submillimeter wavelengths (2013) Astronomy and Astrophysics Review, 21, p. 58. , https://doi.org/10.1007/s00159-013-0058-3
- Kudaka, A.S., Cassiano, M.M., Marcon, R., Cabezas, D.P., Fernandes, L.O.T., Ramirez, H., The new 30 THz solar telescope in são Paulo, Brazil (2015) Solar Physics, 290, pp. 2373-2379. , https://doi.org/10.1007/s11207-015-0749-1
- Lüthi, T., Lüdi, A., Magun, A., Determination of the location and effective angular size of solar flares with a 210 GHz multibeam radiometer (2004) Astronomy & Astrophysics, 420, pp. 361-370. , https://doi.org/10.1051/0004-6361:20035899
- Lüthi, T., Magun, A., Miller, M., First observation of a solar X-class flare in the submillimeter range with KOSMA (2004) Astronomy & Astrophysics, 415, pp. 1123-1132. , https://doi.org/10.1051/0004-6361:20034624
- Miteva, R., Kaufmann, P., Cabezas, D.P., Cassiano, M.M., Fernandes, L.O.T., Freeland, S.L., Comparison of 30 THz impulsive burst time development to microwaves, Hα, EUV, and GOES soft X-rays (2016) Astronomy & Astrophysics, 586, p. A91. , https://doi.org/10.1051/0004-6361/201425520
- Penn, M., Krucker, S., Hudson, H., Jhabvala, M., Jennings, D., Lunsford, A., Kaufmann, P., Spectral and imaging observations of a white-light solar flare in the mid-infrared (2016) Astrophysical Journal, 819, p. L30. , https://doi.org/10.3847/2041-8205/819/2/L30
- Raulin, J.P., Makhmutov, V.S., Kaufmann, P., Pacini, A.A., Lüthi, T., Hudson, H.S., Gary, D.E., Analysis of the impulsive phase of a solar flare at submillimeter wavelengths (2004) Solar Physics, 223, pp. 181-199. , https://doi.org/10.1007/s11207-004-1300-y
- Romano, P., Elmhamdi, A., Falco, M., Costa, P., Kordi, A.S., Al-Trabulsy, H.A., Al-Shammari, R.M., Homologous white light solar flares driven by photospheric shear motions (2018) Astrophysical Journal, 852, p. L10. , https://doi.org/10.3847/2041-8213/aaa1df
- Silva, A.V.R., Laganá, T.F., Gimenez Castro, C.G., Kaufmann, P., Costa, J.E.R., Levato, H., Rovira, M., Diffuse component spectra of solar active regions at submillimeter wavelengths (2005) Solar Physics, 227, pp. 265-281. , https://doi.org/10.1007/s11207-005-2787-6
- Silva, A.V.R., Share, G.H., Murphy, R.J., Costa, J.E.R., de Castro, C.G.G., Raulin, J.-P., Kaufmann, P., Evidence that synchrotron emission from nonthermal electrons produces the increasing submillimeter spectral component in solar flares (2007) Solar Physics, 245, pp. 311-326. , https://doi.org/10.1007/s11207-007-9044-0
- Simões, P.J.A., Kerr, G.S., Fletcher, L., Hudson, H.S., Giménez de Castro, C.G., Penn, M., Formation of the thermal infrared continuum in solar flares (2017) Astronomy & Astrophysics, 605, p. A125. , https://doi.org/10.1051/0004-6361/201730856
- Simões, P.J.A., Costa, J.E.R., Solar bursts gyrosynchrotron emission from three-dimensional sources (2006) Astronomy & Astrophysics, 453, pp. 729-736. , https://doi.org/10.1051/0004-6361:20054665
- Starck, J.-L., Murtagh, F., (2006) Astronomical image and data analysis, , https://doi.org/10.1007/978-3-540-33025-7, Berlin Heidelberg, Springer Verlag
- Sun, X., Norton, A.A., Super-flaring active region 12673 has one of the fastest magnetic flux emergence ever observed (2017) Research Notes of the American Astronomical Society, 1, p. 24. , https://doi.org/10.3847/2515-5172/aa9be9
- Trottet, G., Raulin, J.-P., Giménez de Castro, G., Lüthi, T., Caspi, A., Mandrini, C.H., Origin Of the submillimeter radio emission during the time-extended phase of a solar flare (2011) Solar Physics, 273, pp. 339-361. , https://doi.org/10.1007/s11207-011-9875-6
- Trottet, G., Raulin, J.-P., Kaufmann, P., Siarkowski, M., Klein, K.-L., Gary, D.E., First detection of the impulsive and extended phases of a solar radio burst above 200 GHz (2002) Astronomy & Astrophysics, 381, pp. 694-702. , https://doi.org/10.1051/0004-6361:20011556
- Trottet, G., Raulin, J.-P., Mackinnon, A., Giménez de Castro, G., Simões, P.J.A., Cabezas, D., Origin of the 30 THz emission detected during the solar flare on 2012 March 13 at 17:20 UT (2015) Solar Physics, 290, pp. 2809-2826. , https://doi.org/10.1007/s11207-015-0782-0
- Tsap, Y.T., Smirnova, V.V., Motorina, G.G., Morgachev, A.S., Kuznetsov, S.A., Nagnibeda, V.G., Ryzhov, V.S., Millimeter and X-Ray emission from the 5 July 2012 solar flare (2018) Solar Physics, 293, p. 50. , https://doi.org/10.1007/s11207-018-1269-6
- Turon, P.J., Léna, P.J., High resolution solar images at 10 microns: Sunspot details and photometry (1970) Solar Physics, 14, pp. 112-124. , https://doi.org/10.1007/BF00240164
- Woods, T.N., Eparvier, F.G., Hock, R., Jones, A.R., Woodraska, D., Judge, D., Extreme ultraviolet variability experiment (EVE) on the solar dynamics observatory (SDO): Overview of science objectives, instrument design, data products, and model developments (2012) Solar Physics, 275, pp. 115-143. , https://doi.org/10.1007/s11207-009-9487-6
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