Results 101 to 110 of about 1,156 (218)

Decay of interplanetary coronal mass ejections and forbush decrease recovery times

open access: yes, 2005
[1] We investigate the relation between Forbush cosmic ray decrease recovery time and coronal mass ejection transit time between the Sun and Earth. We identify 17 Forbush decreases from ground-based neutron count rates between 1978 and 2003 that occur ...
Robert F. Penna, Alice C. Quillen
core  

Fundamental Principles of Neutron Monitor Data Systems and Data Analysis

open access: yesJournal of Anatolian Physics and Astronomy
This article starts with the origin of cosmic rays, then details the production of secondary particles in the atmosphere, the operating principles of NM64-type neutron monitors, and the required environmental corrections.
Mahmut Güden
doaj   +1 more source

Rigidity spectrum of Forbush decrease

open access: yes, 1985
Using data from neutron monitors and muon telescopes at surface and underground stations, the average rigidity spectrum of Forbush decreases (Fds) during the period of 1978-1982 were obtained. Thirty eight Ed-events are classified into two groups Hard Fd
Sakakibara, S.   +2 more
core  

Energy Characteristics of Forbush Decreases for Different Types of Heliospheric Disturbances According to Muon Hodoscope URAGAN

open access: yes, 2015
Experimentally obtained energy characteristics of the muon flux during Forbush decreases registered by means of the muon hodoscope URAGAN at different phases of 23rd and 24th solar cycles are studied.
Yakovleva, E.I.   +9 more
core   +1 more source

Solar Latitudinal Distribution of Solar Flares around the Sun and Their Association with Forbush Decreases during the Period of 1986 to 2003 [PDF]

open access: yesJournal of Sciences, Islamic Republic of Iran, 2005
Solar flare events of high importance were utilised to study solar latitudinal frequency distribution of the solar flares in northern and southern hemisphere for the solar cycle 22 to recent solar cycle 23.
doaj  

Multipoint Observations and Modeling of the 2021 November 4 Forbush Decrease Using Solar Orbiter, CSES-01, and Ground-based Neutron Monitor Data

open access: yesThe Astrophysical Journal
During their propagation in the heliosphere, interplanetary coronal mass ejections (ICMEs) interact with galactic cosmic ray (GCR) particles, modifying their spectrum and driving anisotropies.
Simone Benella   +13 more
doaj   +1 more source

Observation of the Forbush Decrease on 2024 May 10, Using the ALPAQUITA Air-shower Array at the 70–1000 GV Rigidity Range

open access: yesThe Astrophysical Journal
The Andes Large area PArticle detector for Cosmic ray physics and Astronomy is a new air-shower array experiment under construction in the Bolivian Andes, and its prototype ALPAQUITA surface array has been operating since 2023 April.
M. Anzorena   +52 more
doaj   +1 more source

Radiation Impact of the Halloween GLE Events During the October–November 2003 Period

open access: yesSpace Weather
From late October to early November 2003, one of the strongest recorded geomagnetic storms occurred due to heightened solar activity. Three ground‐level enhancement events (GLEs) took place during this period, GLE 65, 66, and 67, known as the Halloween ...
N. Larsen, A. Mishev
doaj   +1 more source

Forbush on the Decrease of Birds and Means for Their Protection

open access: yes, 1905
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire   +1 more source

Home - About - Disclaimer - Privacy