Event calendar file
3-11 July 2007
Merida, Mexico
Mexico/General timezone
- icrc2007@icrc2007.unam.mx
Support
SH 2.1
Place
Location: Merida, Mexico
Room: Yucatan I (Fiesta Americana)
Date:
6 Jul 08:30 - 10:00
Conveners
-
- Dr. Sako, Takashi (Solar-Terrestrial Environment Laboratory, Nagoya University)
Timetable | Contribution List
Displaying 7
contributions
out of
7
The Milagro TeV ground-level gamma-ray telescope detects Forbush decreases
in several of its data channels. To understand how the instrument responds
to Forbush decreases, one must calculate, through simulations, its behavior
to a changing galactic cosmic-ray background as that background is modulated
by heliospheric activity. To this end, we have been modeling the response
of the instrumen
... More
Presented by Prof. James RYAN
on
6/7/2007
at
14:30
Recently we have proposed that the long term solar modulation
of galactic cosmic rays (CR) is influenced by coronal mass eyection (CME)
activity.
In this work, we analyze the effect of CMEs number and
latitudinal changes on the CR flux during positive and negative
magnetic cycles.
For CME data, we use both, recent observations by the Large Angle and
Spectrometric Coronagraph (LASCO) expe
... More
Presented by Dr. Alejandro LARA
on
6/7/2007
at
13:30
Project GRAND, an array of proportional wire chambers with muon identification, is used to examine the
decrease in ground level muon counting rate during the Forbush decrease event of September 11, 2005.
Data are presented and compared to that of other cosmic ray muon and neutron monitor detectors.
GRAND's angular resolution capabilities allows a directional study of the Forbush decrease.
Presented by Prof. John POIRIER
on
6/7/2007
at
14:18
Coronal Mass Ejections (CMEs) are described as the mass ejection of
matter from the coronal region of the sun... These CME events generally occur
in large numbers during the period of high solar activity carry large amount of
plasma and magnetic field into interplanetary medium .The signature of
CME associated interplanetary disturbances are called as Interplanetary
coronal
mass eject
... More
Presented by Dr. Pankaj Kumar SHRIVASTAVA
Short-period variations in the integral GCR fluence ( > 100 MeV) often observed
in neutron monitor data have also been seen by the High Sensitivity Telescope
(HIST) aboard the Polar spacecraft. Although HIST was designed to measure
radiation-belt electrons, it makes clean measurements of the integral GCR
fluence when Polar is outside the radiation belts. These measurements show
GCR varia
... More
Presented by Tamitha MULLIGAN
on
6/7/2007
at
14:42
We propose a non stationary three dimensional (3-D) model based on the
transport equation to describe the temporal changes of the rigidity spectrum of
the sporadic Forbush effect of galactic cosmic ray intensity observed by neutron
monitors and ground meson telescopes (energy range of 5-50 GeV). We show
that the main reason of the temporal changes of the rigidity spectrum of the
galactic
... More
Presented by Prof. Michael ALANIA
on
6/7/2007
at
13:54
At the 29th ICRC, Pune, India, a new methodology was presented for investigating the
rigidity dependence of galactic cosmic ray (GCR) modulation on all time scales. The
methodology uses the median rigidity of response (Rm) of cosmic ray detectors
deployed at global sites. We define Rm as the GCR rigidity below which lies 50 % of
the detector counting rate. It is computed from the latitude surv
... More
Presented by Prof. Harjit AHLUWALIA
on
6/7/2007
at
14:06
