activity
20082022
most citedSolar polar brightening and radius at 100 and 230 GHz observed by ALMA

29 citations · 118 across the 9 of their papers we have counts for

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astro-ph.SR2022★ 9 cited

A Genetic Algorithm to model Solar Radio Active Regions from 3D Magnetic Field Extrapolations

Alexandre José de Oliveira e Silva, Caius L. Selhorst, Joaquim E. R. Costa +6

In recent decades our understanding of solar active regions (ARs) has improved substantially due to observations made with better angular resolution and wider spectral coverage. Wh…

astro-ph.SR2021★ 9 cited

Breaking the degeneracy in magnetic cataclysmic variable X-ray spectral modeling using X-ray light curves

Diogo Belloni, Claudia V. Rodrigues, Matthias R. Schreiber +12

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 representation of the accr…

astro-ph.SR2019★ 5 cited

The Solar Radius at 37 GHz through Cycles 22 to 24

Caius L. Selhorst, Juha Kallunki, C. G. Giménez de Castro +2

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 (=8.1 mm) obtained by the Metsäho…

astro-ph.SR2018★ 29 cited

Solar polar brightening and radius at 100 and 230 GHz observed by ALMA

Caius L. Selhorst, Paulo J. A. Simões, Roman Brajša +8

Polar brightening of the Sun at radio frequencies has been studied for almost fifty years and yet a disagreement persists between solar atmospheric models and observations. Some ob…

astro-ph.SR2017★ 6 cited

Association of radio polar cap brightening with bright patches and coronal holes

Caius L. Selhorst, Paulo J. A. Simoes, Alexandre J. Oliveira e Silva +3

Radio-bright regions near the solar poles are frequently observed in Nobeyama Radioheliograph (NoRH) maps at 17 GHz, and often in association with coronal holes. However, the origi…

astro-ph.SR2016★ 4 cited

Oscillations in the Flaring Active Region NOAA 11272

S. M. Conde Cuellar, J. E. R. Costa, C. E. Cedeño Montaña

We studied waves seen during the class C1.9 flare that occurred in Active Region NOAA 11272 on SOL2011-08-17. We found standing waves with periods in the 9- and 19-minute band in s…