Zobrazeno 1 - 10
of 43
pro vyhledávání: '"M. G. Rovira"'
Publikováno v:
Geofísica Internacional, Vol 39, Iss 1, Pp 65-71 (2000)
Analizamos la evolución de la región activa (AR) NOAA 7070 y la relacionamos con una fulguración 3B/X3, ocurrida el 27 de febrero de 1992. Las observaciones en rayos X blandos fueron obtenidas por el SXT (Soft X-ray Telescope) a bordo del satélit
Externí odkaz:
https://doaj.org/article/8c9d56ef84e6459f951f1a4bdf197eec
Autor:
M. G. Rovira, C. G. Giménez de Castro, Cristina Hemilse Mandrini, Marcos E. Machado, G. D. Cristiani
Publikováno v:
Advances in Space Research. 44:1314-1320
Almost 10 years of solar submillimeter observations have shown new aspects of solar activity, such as the presence of rapid solar spikes associated with the launch of coronal mass ejections and an increasing submillimeter spectral component in flares
Autor:
M. G. Rovira, Pierre Kaufmann, G. D. Cristiani, Cristina Hemilse Mandrini, I. de Benedetto E Silva, M. E. Machado, C. G. Giménez de Castro
Publikováno v:
Astronomy & Astrophysics. 492:215-222
Context. Since the installation of submillimeter solar radio telescopes, a new spectral burst component was discovered at frequencies above 100 GHz, creating the THz burst category. In all the reported cases, the events were X-class flares and the TH
Autor:
Jean-Claude Vial, F. Baudin, M. G. Rovira, Karine Bocchialini, Philippe Lemaire, Eugene H. Avrett, A. Costa, E. Ibarra
Publikováno v:
Solar Physics. 241:39-51
We present SUMER/SOHO UV measurements of chromospheric oscillations of intensity, velocity, and linewidth observed in C i, S i, O i, and C ii lines, which are formed in the altitude range from 1000 km to 2000 km above τ 500=1. Oscillations in lines
Autor:
Cristina Hemilse Mandrini, Gema Frühbeck Martínez, M. G. Rovira, Pierre Kaufmann, C. W. Da Silva, C. G. Giménez de Castro, G. D. Cristiani
Publikováno v:
Solar Physics. 240:271-281
Using magnetograms, EUV and Hα images, Owens Valley Solar Array microwave observations, and 212-GHz flux density derived from the Solar Submillimeter Telescope data, we determine the spatial characteristics of the 1B/M6.9 flare that occurred on Nove
Autor:
C. G. Giménez de Castro, H. Levato, M. G. Rovira, Cristina Hemilse Mandrini, G. D. Cristiani, Martínez Gm, Pierre Kaufmann
Publikováno v:
Journal of Atmospheric and Solar-Terrestrial Physics. 67:1744-1750
We present a detailed study of a 1B/M6.9 impulsive flare combining high time resolution (1 ms) and instantaneous emission source localization observations at submillimeter frequencies (212 GHz), obtained with the solar submillimeter telescope (SST),
Autor:
Thomas. J. Bogdan, Valentin Martínez Pillet, M. Asplund, J. Christensen-Dalsgaard, G. Cauzzi, L. E. Cram, D. Dravins, W. Gan, P. Henzl, A. Kosovichev, J. T. Mariska, M. G. Rovira, P. Venkatakrishnan
Publikováno v:
Proceedings of the International Astronomical Union. 1:89-102
Commission 12 covers research on the internal structure and dynamics of the Sun, the “quiet” solar atmosphere, solar radiation and its variability, and the nature of relatively stable magnetic structures like sunspots, faculae and the magnetic ne
Autor:
Adriana V. R. Silva, C. G. Giménez de Castro, Joaquim E. R. Costa, Hugo Levato, Tatiana F. Laganá, M. G. Rovira, Pierre Kaufmann
Publikováno v:
Solar Physics. 227:265-281
Solar maps at 212 and 405 GHz obtained by the Solar Submillimetric Telescope (SST) show regions of enhanced brightness temperature, which coincide with the location of active regions. A statistical study of the radio emission from these active region
Autor:
Pierre Kaufmann, Alessandra Abe Pacini, Vladimir Makhmutov, M. G. Rovira, Jean-Pierre Raulin, Hugo Levato, Carlos Guillermo Giménez de Castro
Publikováno v:
The Astrophysical Journal. 592:580-589
We report properties of fast varying submillimeter emission during one of the strongest solar radio flares of solar cycle 23. Emission was obtained by the Solar Submillimeter-Wave Telescope at 212 and 405 GHz and compared with hard X-ray and γ-ray c
Autor:
Daniel O. Gómez, Roberto A. Fernández Borda, Pablo D. Mininni, M. G. Rovira, Otto H. Bauer, Cristina Hemilse Mandrini
Publikováno v:
Solar Physics. 206:347-357
We present a new method for automatic detection of flare events from images in the optical range. The method uses neural networks for pattern recognition and is conceived to be applied to full-disk Hαimages. Images are analyzed in real time, which a