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30th International Cosmic Ray Conference

3-11 July 2007
Merida, Mexico
Mexico/General timezone
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OG 1.1, OG 1.2

Place

Location: Merida, Mexico
Room: Uxmal + Tulum (Holiday Inn)
Date: 5 Jul 08:30 - 10:00

Timetable | Contribution List

Displaying 7 contributions out of 7
Type: Oral Session: OG 1.1, OG 1.2
Track: OG.1.1
Observations from the Cosmic Ray Isotope Spectrometer (CRIS) aboard NASA’s Advanced Composition Explorer (ACE) have shown that all relevant galactic cosmic ray isotopic ratios measured are consistent with an OB-Association origin of galactic cosmic rays (GCRs). Additionally CRIS measurements of the isotopic abundances of 59Ni and 59Co have shown that the 59Ni has completely decayed into 59Co ... More
Presented by W. R. BINNS on 5/7/2007 at 14:30
Type: Oral Session: OG 1.1, OG 1.2
Track: OG.1.2
Cosmic-ray interactions are the only known source of the rare isotope 6Li. The standard picture is that the observed solar 6Li is produced by galactic cosmic-rays accelerated in supernova remnants. Thus lithium-6 is a unique probe of the local Galactic (hadronic) cosmic-ray history. On the other hand, extragalactic gamma-ray background is a measure of cosmic-ray fluence but for the average st ... More
Presented by Dr. Tijana PRODANOVIC on 5/7/2007 at 14:18
Type: Oral Session: OG 1.1, OG 1.2
Track: OG.1.1
The Cosmic Ray Energetics And Mass balloon-borne experiment has accumulated 70 days of exposure during two successful flights in Antarctica. The instrument is configured with complementary and redundant particle detectors. Energy measurements are made with a transition radiation detector and an ionization calorimeter. Charge measurements are made with timing, pixelated Si, and Cherenko ... More
Presented by Prof. Eun-Suk SEO on 5/7/2007 at 13:30
Type: Oral Session: OG 1.1, OG 1.2
Track: OG.1.1
We present an alternative analysis of the data reported by the balloon-borne experiment RUNJOB. According to RUNJOB, the average mass number of primary cosmic ray particles is constant up to 1 PeV. Here we show that there is more than one solution, which reproduce the observational data. It is demonstrated that, contrary to the wide-spread opinion, the RUNJOB data are not inconsistent with ... More
Presented by Dr. Vladimir KOPENKIN
Type: Oral Session: OG 1.1, OG 1.2
Track: OG.1.2
We use the GALPROP code and the ACE data to derive the cosmic ray isotopic composition at the sources. The composition is derived for two propagation models, diffusive reacceleration and plain diffusion. We show that the compositions derived assuming different propagation models are different. We also compare the isotopic composition at the sources with the latest solar composition. This may p ... More
Presented by Dr. Igor MOSKALENKO on 5/7/2007 at 14:06
Type: Oral Session: OG 1.1, OG 1.2
Track: OG.1.2
A nonlinear kinetic theory of cosmic ray (CR) acceleration in supernova remnants is employed to calculate CR spectra. The magnetic field in SNRs is assumed to be significantly amplified by the effectively accelerating nuclear CR component. It is shown that the calculated CR spectra agree in a satisfactory way with the existing measurements of the observed Galactic CR (GCR) spectrum up to ... More
Presented by Prof. Evgeny BEREZHKO on 5/7/2007 at 14:42
Type: Oral Session: OG 1.1, OG 1.2
Track: OG.1.1
The Space Mission Pamela, launched in orbit on 15 June 2006, represents the state-of-the-art of the investigation of the cosmic radiation to addressing the most compelling issues facing astrophysics and cosmology: the nature of the dark matter that pervades the universe, the apparent absence of cosmological antimatter, the origin and evolution of matter in the galaxy. The primary scien ... More
Presented by Prof. Piergiorgio PICOZZA on 5/7/2007 at 13:42
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