Event calendar file
3-11 July 2007
Merida, Mexico
Mexico/General timezone
- icrc2007@icrc2007.unam.mx
Support
OG 1.2
Place
Location: Merida, Mexico
Room: Kabah (Holiday Inn)
Date:
from 4 Jul 12:05 to 5 Jul 10:00
Timetable | Contribution List
Displaying 7
contributions
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7
Referring to the observed data in the depletions of elements in the interstellar
clouds, the chemical composition of dust grains has been deduced, though it is highly
variable among these clouds. This variability seems to reflect upon the place where
such dust grains are formed inside these clouds. Deep inside the clouds, the chemical
composition of dust grains is well coincident with that of
... More
Presented by Dr. Kunitomo SAKURAI
on
4/7/2007
at
17:53
Further analysis is made on the Tibet hybrid experiment to measure the energy
spectrum of light component (proton and helium) of the cosmic rays at the knee.
The result from three years observation by the burst detectors operated
with Tibet III air-shower array is presented and compared with the
result of the first phase experiment.
Presented by Prof. Makio SHIBATA
on
4/7/2007
at
17:29
Geminga is a nearby pulsar with an age of 3.42e+05 yr and a spin down power of
3.2e+34 erg/s at present. The wind of this pulsar most probably had powered a PWN
that broke up about less than 1.e+05 yr after the birth of the pulsar. Assuming that
leptonic particles accelerated by the pulsar were confined in the PWN and got
released into the interstellar medium on breakup of the PWN, we calcu
... More
Presented by Dr. Ingo BUESCHING
on
4/7/2007
at
17:17
Energy spectra and chemical composition of the primary cosmic ray nuclei for energies
higher than 1 PeV are obtained mainly from measurements of intensities and various
properties of extensive air showers. Additional and importent data from the study of
gamma ray families are available in addition. In bouth cases we have informations
from the range of very high fluctuations. An importent fact
... More
Presented by Prof. Janusz KEMPA
on
4/7/2007
at
17:05
The Ursa Major (UM) cluster of UHECRs consists of 5 events in the combined
HiRes-AGASA sample above 10 EeV which are consistent with coming from a single point
source, with little magnetic deflection. The probability of finding the cluster of 4
highest energy events by chance is about 2 10^-3; the probability that the 5th low
energy event is a chance correlation, given the size of the low ene
... More
Presented by Prof. Glennys FARRAR
on
4/7/2007
at
18:17
Important information pertaining to the origin of high-energy cosmic rays can be gained by studying their mass
composition in the region of the knee (~3 PeV). Thus, air showers have been observed at the South Pole using the
SPASE-2 surface array, which measures the electron-component, and the AMANDA-2 neutrino telescope, which
measures the coincident muon-component. These two components, t
... More
Presented by Dr. Chihwa SONG
on
4/7/2007
at
17:41
The arriving abundances of a variety of cosmic-ray nuclides consist of
comparable amounts of primary material produced by stellar
nucleosynthesis and secondary matter resulting from fragmentation of
heavier nuclei by collisions during interstellar propagation. In
order to utilize such species in studies of cosmic-ray source
composition it is necessary to determine the secondary fraction
pre
... More
Presented by Dr. Mark WIEDENBECK
on
4/7/2007
at
18:05
