An air shower is simply an extensive cascade of electromagnetic radiation and ionized particles (e.g., electrons, photons and muons) that occurs in the atmosphere (and sometimes reaches the surface) when a cosmic ray interacts with other atmospheric nuclei. An artistic representation of a cosmic ...
THIS little book gives a fascinating account of cosmic ray research, its results and its unsolved problems ; the book is, indeed, an outstandingly attractive work on science for the non-specialist, and should appeal to the educated public that in recent years has so eagerly welcomed accounts ...
What is X-ray astronomy? Do cosmic rays reach Earth? What cosmological model is the celestial sphere based on? What kind of spectra does a Hubble Telescope have? What is the magnetosphere made of? What is the most distant star cluster? What is a superheated quasar? What is the solar syst...
Now advances in technology and new instrumentation are changing the nature of cosmic-ray res... JW Cronin - 《Rev.mod.phys》 被引量: 140发表: 1999年 Theoretical model of Saturn's kilometric radiation spectrum A theoretical model is developed here in order to determine an envelope for the ...
A solar eclipse is caused by the moon passing between the sun and Earth, casting a shadow over Earth. When the moon crosses the ecliptic — Earth's orbital plane — it is known as a lunar node. The distance at which thenew moonapproaches a node will determine the type of solar eclipse...
What Is Missing from Our Understanding of Long-Term Solar and Heliospheric Activity? The heliospheric magnetic field is associated with changes in space weather, cosmic-ray flux, and likely climate. This field is determined by the largest s... CJ Schrijver,ML Derosa,AAM Title - 《Astrophysical ...
This machine is called a muon detector. Muons are subatomic particles that result from cosmic rays. 这个机器叫做介子探测器。介子是起源于宇宙射线的亚原子粒子。 OK, let me start over. Cosmic rays aren’t actually "rays"--they’re basically protons, zipping through outer space at close to light...
Learn about what a workstation is, its purpose, and some of the features and technologies that are included within.
(and also an “x-ray estimate”, though Wang and Zahl were able to find a suitable substitute for this), so is not directly available for this argument; however, there is an alternate approach to graininess developed by Guth, based on the polynomial method, that can be adapted to this ...
What is a quasar in astronomy?Quasar In AstronomyOur planet is about 2,000 light-years away from the closest quasar known to us. They are found in galaxies that have black holes located in their centers, which may provide them with a significant amount of energy....