Event calendar file
3-11 July 2007
Merida, Mexico
Mexico/General timezone
- icrc2007@icrc2007.unam.mx
Support
HE 1.3.B
Place
Location: Merida, Mexico
Room: Kabah (Holiday Inn)
Date:
7 Jul 09:10 - 10:00
Timetable | Contribution List
Displaying 4
contributions
out of
4
Combining diffusion equation solutions with direct Monte-Carlo
simulations of charged particle trajectories, the propagation of
cosmic rays in the Galaxy is investigated. Different assumptions on
the shape of the regular Galactic magnetic fields and source
distributions are considered and their influence on cosmic-ray
life-times and the energy spectrum obtained at Earth is examined. The
or
... More
Presented by Dr. Joerg HOERANDEL
on
7/7/2007
at
14:22
We discuss the differences induced by the assumed composition of extragalactic sources on the predicted UHECR
spectrum. We show that in the case of an extragalactic mixed composition, the cosmic ray spectrum can be
reproduced down to the ankle, which is then interpreted as the end of the transition from galactic to extragalactic
cosmic rays. The corresponding Xmax evolution is presented and
... More
Presented by Dr. Denis ALLARD
on
7/7/2007
at
14:34
A variety of mdoels for the origin of Extragalactic Cosmic Rays have been
examined in an attempt to see whether it is possible to explain the ankle in the
spectrum as a property of the EG particles alone. We find that it is not and see
no reason to doubt that it marks the cross-over point between Galactic and EG
particles.
Presented by Prof. Arnold WOLFENDALE
on
7/7/2007
at
14:10
The shapes of cosmic ray trajectories in the Galaxy result from the effect of the
chaotic and regular magnetic field, the rates of the nuclear collisions, the gas
density and other minor parameters. For a given magnetic field configuration
the forms of the trajectories, regardless their lengths, naturally subdivide in
rectilinear and highly tortuous, depending on the ion energy. It is show
... More
Presented by Dr. Antonio CODINO
on
7/7/2007
at
14:46
