3-11 July 2007
Merida, Mexico
Mexico/General timezone
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OG 1.5

Place

Location: Merida, Mexico
Room: Kabah (Holiday Inn)
Date: 6 Jul 12:05 - 13:30

Timetable | Contribution List

Displaying 7 contributions out of 7
Type: Oral Session: OG 1.5
Track: OG.1.5
A design concept for a future ground-based cosmic-ray observatory using the Direct Cerenkov technique will be presented. This technique can provide high precision, largely model-independent, measurements of the energy and charge of heavy cosmic-ray primaries in the region of the knee. It does so by exploiting the direct component of Cerenkov radiation emitted by these primaries prior to thei ... More
Presented by Prof. Scott WAKELY on 6/7/2007 at 18:05
Type: Oral Session: OG 1.5
Track: OG.1.5
The Cosmic Ray Energetics and Mass (CREAM) balloon experiment had two successful flights in 2004/05 and 2005/06. It was designed to perform energy measurements from a few GeV up to 1000 TeV, taking advantage of different detection techniques. The first instrument, CREAM-I, combined a transition radiation detector (equipped with an array of proportional tubes and an acrylic Cherenkov device) w ... More
Presented by Dr. Paolo MAESTRO, Riccardo ZEI on 6/7/2007 at 17:17
Type: Oral Session: OG 1.5
Track: OG.1.5
Although SNRs are theoretically considered to be the most plausible candidates for the acceleration of cosmic-ray hadrons up to PeV energies, no observations have succeeded in definitely specifying those objects so far. Since accelerated electrons have difficulty producing very high-energy gamma rays with energies above 100 TeV via bremsstrahlung or inverse Compton scattering, it can be an ef ... More
Presented by Mr. Takashi SAKO on 6/7/2007 at 18:17
Type: Oral Session: OG 1.5
Track: OG.1.5
The Track Imaging Cerenkov Experiment (TrICE) is an air Cerenkov telescope designed to use a high resolution method for measuring cosmic-ray composition at TeV-PeV energies. The method aims to separate the fast and compact direct Cerenkov signal produced by primary cosmic ray nuclei in the upper atmosphere from the light produced by the subsequent air shower cascade. Efficient discrimination ... More
Presented by Elizabeth HAYS on 6/7/2007 at 17:41
Type: Oral Session: OG 1.5
Track: OG.1.5
We present here the capabilities of the GLAST Large Area Telescope to detect cosmic ray high-energy (HE) electrons in the energy range from 10 GeV to 1 TeV. We also discuss the science topics that can be investigated with HE electron data and quantify the results with LAT instrument simulations. The science topics include CR propagation, calibration of the IC gamma-ray model, testing hypothese ... More
Presented by Dr. Alexander MOISEEV on 6/7/2007 at 17:29
Type: Oral Session: OG 1.5
Track: OG.1.5
Polarized gamma-rays are expected from a wide variety of sources including rotation-powered pulsars, accreting black holes and neutron stars, and jet- dominated active galaxies. Polarization measurements provide a powerful probe of the gamma-ray emission mechanism and the distribution of magnetic and radiation fields around the source. No measurements have been performed in the soft gamma ... More
Presented by Prof. Mark PEARCE on 6/7/2007 at 17:05
Type: Oral Session: OG 1.5
Track: OG.1.5
Ground-based composition measurements of high-energy cosmic rays can be significantly improved by using the direct Cerenkov method. This technique targets the Cerenkov light produced by the primary particle prior to its production of an extensive air shower. With the appropriate time and angular resolution, the direct Cerenkov photons can be separated from those produced in the extensive air ... More
Presented by Ms. Stephanie WISSEL on 6/7/2007 at 17:53
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