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A new limit on the Ultra-High-Energy Cosmic-Ray flux with the Westerbork Synthesis Radio Telescope
the Ultra-High-Energy Cosmic-Ray flux the Westerbork Synthesis Radio Telescope
2011/1/13
A particle cascade (shower) in a dielectric, for example as initiated by an ultra-high energy cosmic ray, will have an excess of electrons which will emit coherent \v{C}erenkov radiation, known as the...
Interpretation of the 115 Day Periodic Modulation in the X-ray Flux of NGC 5408 X-1
the 115 Day Periodic Modulation the X-ray Flux NGC 5408 X-1
2011/1/11
We comment on the recent observation of a 115-day modulation in the X-ray flux of the ultraluminous X-ray source (ULX) NGC 5408 X-1, and in particular, the interpretation of this modulation as the orb...
Interpretation of the 115 Day Periodic Modulation in the X-ray Flux of NGC 5408 X-1
the 115 Day Periodic Modulation the X-ray Flux NGC 5408 X-1
2011/1/11
We comment on the recent observation of a 115-day modulation in the X-ray flux of the ultraluminous X-ray source (ULX) NGC 5408 X-1, and in particular, the interpretation of this modulation as the orb...
Time-variability in the Interstellar Boundary Conditions of the Heliosphere over the past 60,000 years: Impact of the Solar Journey on the Galactic Cosmic Ray Flux at Earth
Time-variability the Interstellar Boundary Conditions
2011/1/10
During the solar journey through galactic space, variations in the physical properties of the surrounding interstellar material (ISM) modify the heliosphere and modulate the flux of galactic cosmic ra...
ON DETERMINATION OF THE COSMIC RAY FLUX USING MOLECULAR HYDROGEN ABSORPTION LINES
Molecular processes-SM molecules-quasars absorption lines
2009/3/11
We outline a procedure for estimating the cosmic ray flux at remote
locations where molecular hydrogen absorption lines have been detected. The
method relies on several assumptions whose validity in...