Search Results - "Costa, Joaquim E. R."

Statistical analysis of the onset temperature of solar flares in 2010–2011 by da Silva, Douglas Félix, Hui, Li, Simões, Paulo J A, Valio, Adriana, Costa, Joaquim E R, Hudson, Hugh S, Fletcher, Lyndsay, Hayes, Laura A, Hannah, Iain G

“…ABSTRACT Understanding the physical processes that trigger solar flares is paramount to help with forecasting space weather and mitigating the effects on our…”
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Solar Polar Brightening and Radius at 100 and 230 GHz Observed by ALMA by Selhorst, Caius L., Simões, Paulo J. A., Brajša, Roman, Valio, Adriana, de Castro, C. G. Giménez, Costa, Joaquim E. R., Menezes, Fabian, Rozelot, Jean Pierre, Hales, Antonio S., Iwai, Kazumasa, White, Stephen

“…Polar brightening of the Sun at radio frequencies has been studied for almost 50 years and yet a disagreement persists between solar atmospheric models and…”
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A Genetic Algorithm to Model Solar Radio Active Regions From 3D Magnetic Field Extrapolations by de Oliveira e Silva, Alexandre José, Selhorst, Caius Lucius, Costa, Joaquim E. R., Simões, Paulo J. A., Giménez de Castro, Carlos Guillermo, Wedemeyer, Sven, White, Stephen M., Brajša, Roman, Valio, Adriana

“…In recent decades our understanding of solar active regions (ARs) has improved substantially due to observations made with better angular resolution and wider…”
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Diffuse Component Spectra of Solar Active Regions at Submillimeter Wavelengths by Silva, Adriana V. R., Laganá, Tatiana F., De Castro, C. Guillermo Gimenez, Kaufmann, Pierre, Costa, Joaquim E. R., Levato, Hugo, Rovira, Marta

“…Solar maps at 212 and 405 GHz obtained by the Solar Submillimetric Telescope (SST) show regions of enhanced brightness temperature, which coincide with the…”
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Association of Radio Polar Cap Brightening with Bright Patches and Coronal Holes by Selhorst, Caius L., Simões, Paulo J. A., Silva, Alexandre J. Oliveira e, Castro, C. G. Giménez de, Costa, Joaquim E. R., Valio, Adriana

“…Radio-bright regions near the solar poles are frequently observed in Nobeyama Radioheliograph (NoRH) maps at 17 GHz, and often in association with coronal…”
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The LLAMA Brazilian-Argentinian radiotelescope project: progress in Brazil and BRICS collaboration by Lépine, Jacques R D, Abraham, Zulema, Castro, Carlos Guillermo G DE, Costa, Joaquim E R, Larrarte, Juan Jose, Rasztocky, Emiliano, Gancio, Guillermo, Domicini, Tania, Beaklini, Pedro P B, Correra, Fatima S, Beccari, Wesley, Luqueze, Marcos Aurelio, Verri, Antonio, Zanella, Danilo Cesar, Kooi, Jacob, Timmer, Sjoerd T, Ronsó, Daniele A, Fermino, Carlos Eduardo, Luiz, Ricardo Fernando

“…We present briefly the LLAMA sub-mm radiotelescope, a joint project of Argentina and Brazil, being mounted in the Andes, Argentina, at 4800 m altitude. Here we…”
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Rapid Pulsations in Sub-THz Solar Bursts by Kaufmann, Pierre, Giménez de Castro, C. Guillermo, Correia, Emilia, Costa, Joaquim E. R, Raulin, Jean-Pierre, Válio, Adriana Silva

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A New Solar Burst Spectral Component Emitting Only in the Terahertz Range by Kaufmann, Pierre, Raulin, Jean-Pierre, de Castro, C. G. Giménez, Levato, Hugo, Gary, Dale E, Costa, Joaquim E. R, Marun, Adolfo, Pereyra, Pablo, Silva, Adriana V. R, Correia, Emilia

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The Brazilian decimetric array and space weather by Sawant, Hanumant S., Gopalswamy, Natchimuthuk, Rosa, Reinaldo R., Sych, Robert A., Anfinogentov, Sergey A., Fernandes, Francisco C.R., Cecatto, José R., Costa, Joaquim E.R.

“…We report on the development and current status of the Brazilian Decimetric Array (BDA), which will play a vital role in filling the existing gaps in imaging…”
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A Genetic Algorithm to model Solar Radio Active Regions from 3D Magnetic Field Extrapolations by Silva, Alexandre José de Oliveira e, Selhorst, Caius L, Costa, Joaquim E. R, Simões, Paulo J. A, de Castro, C. Guillermo Giménez, Wedemeyer, Sven, White, Stephen M, Brajša, Roman, Valio, Adriana

“…In recent decades our understanding of solar active regions (ARs) has improved substantially due to observations made with better angular resolution and wider…”
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The Solar Radius at 37 GHz through Cycles 22 to 24 by Selhorst, Caius L, Kallunki, Juha, de Castro, C. G. Giménez, Valio, Adriana, Costa, Joaquim E. R

“…To better understand the influence of the activity cycle on the solar atmosphere, we report the time variation of the radius observed at 37 GHz ($\lambda$=8.1…”
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Breaking the degeneracy in magnetic cataclysmic variable X-ray spectral modeling using X-ray light curves by Belloni, Diogo, Rodrigues, Claudia V, Schreiber, Matthias R, Castro, Manuel, Costa, Joaquim E. R, Hayashi, Takayuki, Lima, Isabel J, Luna, Gerardo J. M, Martins, Murilo, Oliveira, Alexandre S, Parsons, Steven G, Silva, Karleyne M. G, Stecchini, Paulo E, Stuchi, Teresa J, Zorotovic, Monica

“…We present an analysis of mock X-ray spectra and light curves of magnetic cataclysmic variables using an upgraded version of the 3D CYCLOPS code. This 3D…”
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Solar polar brightening and radius at 100 and 230 GHz observed by ALMA by Selhorst, Caius L, Simões, Paulo J. A, Brajša, Roman, Valio, Adriana, de Castro, C. G. Giménez, Costa, Joaquim E. R, Menezes, Fabian, Rozelot, Jean Pierre, Hales, Antonio S, Iwai, Kazumasa, White, Stephen

“…ApJ, Jan. 2019, v 871, 45 Polar brightening of the Sun at radio frequencies has been studied for almost fifty years and yet a disagreement persists between…”
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Association of radio polar cap brightening with bright patches and coronal holes by Selhorst, Caius L, Simoes, Paulo J. A, Silva, Alexandre J. Oliveira e, de Castro, C. G. Gimenez, Costa, Joaquim E. R, Valio, Adriana

“…Radio-bright regions near the solar poles are frequently observed in Nobeyama Radioheliograph (NoRH) maps at 17 GHz, and often in association with coronal…”
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The Solar Radius at 37 GHz Through Cycles 22 to 24 by Selhorst, Caius L., Kallunki, Juha, Giménez de Castro, C. Guillermo, Valio, Adriana, Costa, Joaquim E. R.

“…To better understand the influence of the activity cycle on the solar atmosphere, we report the time variation of the radius observed at 37 GHz ( λ = 8.1  mm )…”
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Solar Burst Analysis with 3D Loop Models by Costa, Joaquim E. R, Simões, Paulo J. A, Pinto, Tereza S. N, Melnikov, Victor F

“…A sample of Nobeyama flares was selected and analyzed using loop model for important flare parameters. The model for the flaring region consists of a three…”
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Rapid pulsations in sub-THz solar bursts by Kaufmann, Pierre, de Castro, C. Guillermo Gimenez, Correia, Emilia, Costa, Joaquim E. R, Raulin, Jean-Pierre, Valio, Adriana Silva

“…Astrophys.J.697:420-427,2009 A new solar burst emission spectral component has been found showing sub-THz fluxes increasing with frequency, spectrally…”
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RAPID PULSATIONS IN SUB-THz SOLAR BURSTS by Kaufmann, Pierre, Gimenez de Castro, C. Guillermo, Correia, Emilia, Raulin, Jean-Pierre, Valio, Adriana Silva, Costa, Joaquim E. R.

“…A new solar burst emission spectral component has been found showing sub-THz fluxes increasing with frequency, spectrally separated from the well known…”
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The Brazilian decimetric array and space weather by SAWANT, Hanumant S, GOPALSWAMY, Natchimuthuk, ROSA, Reinaldo R, SYCH, Robert A, ANFINOGENTOV, Sergey A, FERNANDES, Francisco C. R, CECATTO, José R, COSTA, Joaquim E. R

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POLARIMETRIA ÓPTICA E MODELAGEM DE POLARES OBSERVADAS NO OPD/LNA NO PERÍODO DE 2010-2012 by Silva, Karleyne M. G. Silva, Rodrigues, Cláudia V., Costa, Joaquim E. R., Cieslinski, Deonísio, Almeida, Leonardo A., Magalhães, Victor S.

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