Zobrazeno 1 - 10
of 29
pro vyhledávání: '"de Oliveira, M. N."'
We present an analysis of the short-term modulation (one rotation of Bartels-27 days) of the galactic cosmic rays (GCR) by the solar wind, based on the cosmic ray rates observed by the Pierre Auger Observatory (PAO) on their surface detectors in scal
Externí odkaz:
http://arxiv.org/abs/2003.06432
From June 2014 to February 2017, the Fermi LAT detected 46 gamma-ray bursts (GRBs) with photon energies above 20 MeV, and the trigger coordinates of seven of them were within the FoV of New-Tupi detector located in the central region of the South Atl
Externí odkaz:
http://arxiv.org/abs/1807.07160
Autor:
Augusto, C. R. A., Navia, C. E., de Oliveira, M. N., Nepomuceno, A. A., Raulin, J. P., Tueros, E., de Mendonça, R. R., Fauth, A. C., de Souza, H. Vieira, Kopenkin, V., Sinzi, T.
We report on the 22-23 June 2015 geomagnetic storm. There has been a shortage of intense geomagnetic storms during the current solar cycle 24 in relation to the previous cycle. This situation changed after mid-June 2015 when one of the biggest solar
Externí odkaz:
http://arxiv.org/abs/1805.05277
Autor:
Augusto, C. R. A., Navia, C. E., de Oliveira, M. N., Nepomuceno, A. A., Fauth, A. C., Kopenkin, V., Sinzi, T.
On 2017 September 10 Neutron Monitors (NMs) apparatus located at ground level and high latitudes detected an increase in the counting rate associated to solar energetic particles (SEPs) emission from X8.2-class solar flare and its associated CME. Thi
Externí odkaz:
http://arxiv.org/abs/1805.02678
Autor:
Augusto, C. R. A., Navia, C. E., de Oliveira, M. N., Nepomuceno, A. A., Kopenkin, V., Sinzi, T.
In this article we present results of the study on the association between the muon flux variation at ground level, registered by the \textit{\textit{New-Tupi}} muon telescopes ($22^0 53'00''S,\; 43^0 06'13'W$; 3 m above sea level) and a geomagnetic
Externí odkaz:
http://arxiv.org/abs/1706.00775
Autor:
Augusto, C. R. A., Navia, C. E., de Oliveira, M. N., Nepomuceno, A. A., Kopenkin, V., Sinzi, T.
Since 2014, a new detector (New-Tupi) consisting of four plastic scintillators ($150 \times 75 \times 5 cm^3$) placed in pairs and located in Niteroi, Rio de Janeiro, Brazil, has been used for the search of transient solar events and photomuons from
Externí odkaz:
http://arxiv.org/abs/1605.04274
On Oct. 29th, 2015, the Earth crossed through a fold in the heliospheric current sheet. This is called a "solar sector boundary crossing". Under this circumstances, a large coronal mass ejection (CME) occurred at 2:24 UT, behind the west limb on the
Externí odkaz:
http://arxiv.org/abs/1603.08863
Publikováno v:
Brazilian Journal of Physics; Dec2024, Vol. 54 Issue 6, p1-10, 10p
Autor:
Augusto, C. R. A., Navia, C. E., de Oliveira, M. N., Shigueoka, H., Nepomuceno, A. A., Fauth, A. C.
Far away from any sunspot, a bright flare erupted on November 1st, 2014, with onset at 4:44 UT and a duration of around three hours, causing a C2.7-class flare. The blast was associated with the sudden disappearance of a large dark solar filament. Th
Externí odkaz:
http://arxiv.org/abs/1507.03954
Autor:
Augusto, C. R. A., Navia, C. E., de Oliveira, M. N., Nepomuceno, A. A., Fauth, A. C., Kopenkin, V., Sinzi, T.
Publikováno v:
Publications of the Astronomical Society of the Pacific, 2019 Feb 01. 131(996), 1-14.
Externí odkaz:
https://www.jstor.org/stable/26660717