Millimeter and submillimeter counterparts of the 2009 september 26 solar prominence
Por:
Pérez-León J.E., Hiriart D., Mendoza-Torres J.E.
Publicada:
1 ene 2013
Resumen:
We present observations of the millimeter and submillimeter wavelength radio emission from an extended solar prominence. The data were obtained at the Solar Submillimeter Telescope (SST) during regular observations on 2009 September 26. The prominence signals were detected at 1.41 mm (212 GHz) and 0.74 mm (405 GHz) in an east-west raster practiced on the solar disk. Detection was confirmed by the He II image from the Extreme Ultraviolet Imaging Telescope of the Solar and Heliospheric Observatory (EIT/SOHO). The peak brightness temperature at the 1.41 mm and 0.74 mm are separated by ~4 arcmin with the 0.74 mm one closer to the solar limb. Assuming a free-free emission mechanism, both peak intensities correspond to an excess of brightness temperature of Tb ~ 2×103 K and they are consistent with an electron temperature and density of Te ~ 5.6 × 10 3 K and ne ~ 1010 cm-3, respectively. © Copyright 2013: Instituto de Astronomía, Universidad Nacional Autónoma de México.
Filiaciones:
Pérez-León J.E.:
Instituto de Astronomía, Observatorio Astronómico Nacional, Universidad Nacional Autónoma de México, Ensenada, B.C. 22800, Apdo. Postal 877, Mexico
Hiriart D.:
Instituto de Astronomía, Observatorio Astronómico Nacional, Universidad Nacional Autónoma de México, Ensenada, B.C. 22800, Apdo. Postal 877, Mexico
Mendoza-Torres J.E.:
Instituto Nacional de Astrofísica, Óptica y Electrónica, Tonantzintla, Puebla, 72840, Luis Enrique Erro, 1, Mexico
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