Ultrahigh energy gamma rays in the geomagnetic field and atmosphere
نویسندگان
چکیده
منابع مشابه
Ultrahigh Energy Cosmic Rays and Prompt TeV Gamma Rays from Gamma Ray Bursts
Gamma Ray Bursts (GRBs) have been proposed as one possible class of sources of the Ultrahigh Energy Cosmic Ray (UHECR) events observed up to energies >∼ 10 eV. The synchrotron radiation of the highest energy protons accelerated within the GRB source should produce gamma rays up to TeV energies. Here we briefly discuss the implications on the energetics of the GRB from the point of view of the d...
متن کاملHigh Energy Gamma Rays from Ultrahigh Energy Cosmic Ray Protons in Gamma Ray Bursts
It has recently been proposed that ultrahigh energy (∼> 10 19 eV) cosmic rays (UHECRs) are accelerated by the blast waves associated with GRBs. We calculate the observed synchrotron spectrum from protons and energetic leptons formed in the cascades initiated by photopion production, taking into account γγ attenuation at the source. Normalizing to the emission characteristics of GRB 970508, we p...
متن کاملUltrahigh Energy Cosmic Rays Detection
The paper describes methods used for the detection of cosmic rays with energies above 1018 eV (UHECR, UltraHigh Energy Cosmic Rays). It had been anticipated there would be a cutoff in the energy spectrum of primary cosmic rays around 3·1019 eV induced by their interaction with the 2.7 K primordial photons. This has become known as the GZK cutoff. However, several showers have been detected with...
متن کاملAnisotropies in Ultrahigh Energy Cosmic Rays *
The present status of anisotropy studies for the highest energy cosmic rays is presented including the first full sky survey. Directions and prospects for the future are also discussed in light of new statistical methods and the last quantities of data expected in the near future from the Pierre Auger Observatory.
متن کاملFlipped cryptons and ultrahigh energy cosmic rays
John Ellis, V. E. Mayes, and D.V. Nanopoulos Theory Division, Physics Department, CERN, CH 1211 Geneva 23, Switzerland George P. and Cynthia W. Mitchell Institute for Fundamental Physics, Texas A&M University, College Station, Texas 77843, USA Astroparticle Physics Group, Houston Advanced Research Center (HARC), Mitchell Campus, Woodlands, Texas 77381, USA and Academy of Athens, Division of Nat...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review D
سال: 2003
ISSN: 0556-2821,1089-4918
DOI: 10.1103/physrevd.67.043002