LISA Pathfinder test-mass charging during galactic cosmic-ray flux short-term variations

2015 ◽  
Vol 32 (3) ◽  
pp. 035001 ◽  
Author(s):  
C Grimani ◽  
M Fabi ◽  
A Lobo ◽  
I Mateos ◽  
D Telloni
Keyword(s):  
Cosmic Ray ◽  
Test Mass ◽  
Short Term ◽  
Lisa Pathfinder ◽  
Galactic Cosmic Ray ◽  
Cosmic Ray Flux

scholarly journals Recurrent and non-recurrent galactic cosmic-ray flux short-term variations observed with LISA Pathfinder

2019 ◽  
Author(s):  
Simone Benella ◽  
Catia Grimani ◽  
Michele Fabi ◽  
Noemi Finetti ◽  
Mattia Villani
Keyword(s):  
Cosmic Ray ◽  
Short Term ◽  
Lisa Pathfinder ◽  
Galactic Cosmic Ray ◽  
Cosmic Ray Flux

scholarly journals Measuring the Galactic Cosmic Ray flux with the LISA Pathfinder radiation monitor

2018 ◽  
Vol 98 ◽  
pp. 28-37 ◽  
Author(s):  
M. Armano ◽  
H. Audley ◽  
J. Baird ◽  
P. Binetruy ◽  
M. Born ◽  
...  
Keyword(s):  
Cosmic Ray ◽  
Radiation Monitor ◽  
Lisa Pathfinder ◽  
Galactic Cosmic Ray ◽  
Cosmic Ray Flux

A comparison of catalogues of Forbush decreases identified from individual and a network of neutron monitors: a critical perspective

2021 ◽  
Vol 503 (4) ◽  
pp. 5675-5691
Author(s):  
O Okike ◽  
J A Alhassan ◽  
E U Iyida ◽  
A E Chukwude
Keyword(s):  
Cosmic Ray ◽  
Radiowave Propagation ◽  
Current Work ◽  
Survey Method ◽  
Critical Perspective ◽  
Short Term ◽  
Forbush Decreases ◽  
Academy Of Sciences ◽  
Galactic Cosmic Ray ◽  
Monitor Data

ABSTRACT Short-term rapid depressions in Galactic cosmic ray (GCR) flux, historically referred to as Forbush decreases (FDs), have long been recognized as important events in the observation of cosmic ray (CR) activity. Although theories and empirical results on the causes, characteristics, and varieties of FDs have been well established, detection of FDs, from either isolated detectors' or arrays of neutron monitor data, remains a subject of interest. Efforts to create large catalogues of FDs began in the 1990s and have continued to the present. In an attempt to test some of the proposed CR theories, several analyses have been conducted based on the available lists. Nevertheless, the results obtained depend on the FD catalogues used. This suggests a need for an examination of consistency between FD catalogues. This is the aim of the present study. Some existing lists of FDs, as well as FD catalogues developed in the current work, were compared, with an emphasis on the FD catalogues selected by the global survey method (GSM). The Forbush effects and interplanetary disturbances database (FEID), created by the Pushkov Institute of Terrestrial Magnetism, Ionosphere and Radiowave Propagation Russian Academy of Sciences (IZMIRAN), is the only available comprehensive and up to date FD catalogue. While there are significant disparities between the IZMIRAN FD and other event lists, there is a beautiful agreement between FDs identified in the current work and those in the FEID. This may be a pointer to the efficiency of the GSM and the automated approach to FD event detection presented here.

scholarly journals Probing the Galactic cosmic ray flux with submillimeter and gamma ray data

2008 ◽  
Author(s):  
S. Casanova ◽  
S. Gabici ◽  
F. A. Aharonian ◽  
K. Torii ◽  
Y. Fukui ◽  
...  
Keyword(s):  
Gamma Ray ◽  
Cosmic Ray ◽  
Galactic Cosmic Ray ◽  
Cosmic Ray Flux

In‐Orbit Performance of the Space Telescope NINA and Galactic Cosmic‐Ray Flux Measurements

2001 ◽  
Vol 132 (2) ◽  
pp. 365-375 ◽  
Author(s):  
V. Bidoli ◽  
A. Canestro ◽  
M. Casolino ◽  
M. P. De Pascale ◽  
G. Furano ◽  
...  
Keyword(s):  
Cosmic Ray ◽  
Space Telescope ◽  
Flux Measurements ◽  
Galactic Cosmic Ray ◽  
Cosmic Ray Flux

scholarly journals Cosmic rays linked to rapid mid-latitude cloud changes

2010 ◽  
Vol 10 (22) ◽  
pp. 10941-10948 ◽  
Author(s):  
B. A. Laken ◽  
D. R. Kniveton ◽  
M. R. Frogley
Keyword(s):  
Causal Relationship ◽  
General Circulation ◽  
Cloud Cover ◽  
Circulation Model ◽  
Cosmic Ray ◽  
Reanalysis Data ◽  
Short Term ◽  
Earth’S Climate ◽  
Relationship Of ◽  
Galactic Cosmic Ray

Abstract. The effect of the Galactic Cosmic Ray (GCR) flux on Earth's climate is highly uncertain. Using a novel sampling approach based around observing periods of significant cloud changes, a statistically robust relationship is identified between short-term GCR flux changes and the most rapid mid-latitude (60°–30° N/S) cloud decreases operating over daily timescales; this signal is verified in surface level air temperature (SLAT) reanalysis data. A General Circulation Model (GCM) experiment is used to test the causal relationship of the observed cloud changes to the detected SLAT anomalies. Results indicate that the anomalous cloud changes were responsible for producing the observed SLAT changes, implying that if there is a causal relationship between significant decreases in the rate of GCR flux (~0.79 GU, where GU denotes a change of 1% of the 11-year solar cycle amplitude in four days) and decreases in cloud cover (~1.9 CU, where CU denotes a change of 1% cloud cover in four days), an increase in SLAT (~0.05 KU, where KU denotes a temperature change of 1 K in four days) can be expected. The influence of GCRs is clearly distinguishable from changes in solar irradiance and the interplanetary magnetic field. However, the results of the GCM experiment are found to be somewhat limited by the ability of the model to successfully reproduce observed cloud cover. These results provide perhaps the most compelling evidence presented thus far of a GCR-climate relationship. From this analysis we conclude that a GCR-climate relationship is governed by both short-term GCR changes and internal atmospheric precursor conditions.

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