منابع مشابه
Neptune's Cosmic Ray Cutoff
The Voyager 2 cosmic ray experiment 0•erved the signature of a magnetic utoff of cosmic ray ia• immediately after the closest approach. to Neptune. The cutoff signature shows that the simultaneous ,.•ation of a trapped particle dropout could not have •urred at high magnetic latitudes, but is likely to be a •ft shadow of the planet caused by the large offset of' the ..•c!e drift shells. The OTD2...
متن کاملEvading the GZK Cosmic–Ray Cutoff
Explanations of the origin of ultra-high energy cosmic rays are severely constrained by the Greisen-Zatsepin-Kuz’min effect, which limits their propagation over cosmological distances. We argue that possible departures from strict Lorentz invariance, too small to have been detected otherwise, can affect elementary-particle kinematics so as to suppress or forbid inelastic collisions of cosmic-ra...
متن کاملThe secular variations of cosmic ray cutoff rigidities ,
Vertical rigidities of geomagnetic cutoff are obtained for world neutron monitor network with annual resolution for the period of 1950-2020 by the method of trajectory calculations with the model International Geomagnetic Reference Field. Results of the computations show the total decrease of the cut off rigidities in the majority points which is caused by a decrease of the total geomagnetic fi...
متن کاملEvidence for a high-energy cosmic-ray spectrum cutoff.
© 1985 The American Physical Society 1875 In 1966, Roll and Wilkinson reported the first confirmation that the intense isotropic radiation observed earlier by Penzias and Wilson 2 was thermal in nature and all pervasive, characteristic of a universe cooled to a temperature of 2.7 K. Given the previous report by Linsley of the detection of a primary cosmic ray with an energy estimated to be in e...
متن کاملTime Delays in Cosmic Ray Propagation
Cosmic Rays (CR) travel at speeds essentially indistinguishable from the speed of light. However whilst travelling through magnetic fields, both regular and turbulent, they are delayed behind the light since they are usually charged particles and their paths are not linear. Those delays can be so long that they are an impediment to correctly identifying sources which may be variable in time. Fu...
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: Geophysical Research Letters
سال: 1991
ISSN: 0094-8276
DOI: 10.1029/90gl02582