activity
20092022
most citedFirst Very Low Frequency detection of short repeated bursts from magnetar SGR J1550-5418

36 citations · 105 across the 7 of their papers we have counts for

collaborators

7 papers

astro-ph.HE2022★ 21 cited

Large amplitude bidirectional anisotropy of cosmic-ray intensity observed with world-wide networks of ground-based neutron monitors and muon detectors in November, 2021

K. Munakata, M. Kozai, C. Kato +24

We analyze the cosmic-ray variations during a significant Forbush decrease observed with world-wide networks of ground-based neutron monitors and muon detectors during November 3-5…

physics.space-ph2021★ 14 cited

A Peculiar ICME Event in August 2018 Observed with the Global Muon Detector Network

W. Kihara, K. Munakata, C. Kato +20

We demonstrate that global observations of high-energy cosmic rays contribute to understanding unique characteristics of a large-scale magnetic flux rope causing a magnetic storm i…

physics.space-ph2019★ 6 cited

Deriving the solar activity cycle modulation on cosmic ray intensity observed by Nagoya muon detector from October 1970 until December 2012

Rafael R. S. de Mendonça, Carlos R. Braga, Ezequiel Echer +4

It is well known that the cosmic ray intensity observed at the Earth's surface presents an 11 and 22-yr variations associated with the solar activity cycle. However, the observatio…

physics.space-ph2018★ 16 cited

Cosmic ray short burst observed with the Global Muon Detector Network (GMDN) on June 22, 2015

K. Munakata, M. Kozai, P. Evenson +14

We analyze the short cosmic ray intensity increase ("cosmic ray burst": CRB) on June 22, 2015 utilizing a global network of muon detectors and derive the global anisotropy of cosmi…

astro-ph.SR2016★ 8 cited

Average spatial distribution of cosmic rays behind the interplanetary shock -Global Muon Detector Network observations-

M. Kozai, K. Munakata, C. Kato +13

We analyze the galactic cosmic ray (GCR) density and its spatial gradient in Forbush Decreases (FDs) observed with the Global Muon Detector Network (GMDN) and neutron monitors (NMs…

astro-ph.HE2010★ 36 cited

First Very Low Frequency detection of short repeated bursts from magnetar SGR J1550-5418

Y. T. Tanaka, J. P. Raulin, F. C. P. Bertoni +7

We report on the first detection of ionospheric disturbances caused by short repeated gamma-ray bursts from the magnetar SGR J1550-5418. Very low frequency (VLF) radio wave data ob…