Zobrazeno 1 - 10
of 66
pro vyhledávání: '"Higbie, P. R."'
Autor:
Webber, W. R., Higbie, P. R.
A comparison of the Helium and Carbon interstellar spectra measured at Voyager in the local interstellar medium leads to a different interpretation than a comparison of the Hydrogen to Helium spectra. This is because the He/C ratio is observed to inc
Externí odkaz:
http://arxiv.org/abs/1503.05891
Autor:
Webber, W. R., Higbie, P. R.
Voyager 1 data from beyond the heliopause provide the first direct measurements of the interstellar cosmic ray spectra below 1 GeVnuc. In this paper we combine these Voyager measurements of H and He nuclei from 3-600 MeVnuc with higher energy measure
Externí odkaz:
http://arxiv.org/abs/1503.01035
Autor:
Webber, W. R., Higbie, P. R.
The new Voyager measurements of cosmic ray electrons between 6-60 MeV beyond 122 AU are very sensitive indicators of cosmic ray propagation and acceleration in the galaxy at a very low modulation level. Using a Monte Carlo diffusion model with a sour
Externí odkaz:
http://arxiv.org/abs/1308.6598
After the disappearance of lower energy heliospheric particles at Voyager 1 starting on August 25th, 2012, spectra of H, He and C/O nuclei were revealed that resembled those to be expected for galactic cosmic rays. These spectra had intensity peaks i
Externí odkaz:
http://arxiv.org/abs/1308.4426
This paper describes the unfolding of the solar modulated galactic cosmic ray H and He nuclei spectra beyond ~105 AU in the heliosheath. Between 2008.0 and 2012.3 when Voyager 1 went from about 105 to 120.5 AU the spectral intensities of these two co
Externí odkaz:
http://arxiv.org/abs/1308.1895
Autor:
Webber, W. R., Cummings, A. C., Stone, E. C., McDonald, F. B., Intriligator, D. S., Higbie, P. R., Heikkila, B., Lal, N.
We have examined features in the structure of the heliosheath using the fine scale time variations of termination shock particles (TSP) between ~0.5 - 20 MeV and electrons between 2.5-14 MeV measured by the CRS instrument as the V2 spacecraft crossed
Externí odkaz:
http://arxiv.org/abs/1208.2982
Autor:
Webber, W. R., Cummings, A. C., Stone, E. C., McDonald, F. B., Mewaldt, R. A., Leske, R., Wiedenbeck, M., Higbie, P. R., Heikkila, B.
The recovery of cosmic ray Carbon nuclei of energy ~20-125 MeV/nuc in solar cycle #23 from 2004 to 2010 has been followed at three locations, near the Earth using ACE data and at V2 between 74-92 AU and also at V1 beyond the heliospheric termination
Externí odkaz:
http://arxiv.org/abs/1202.2081
The recovery of cosmic ray protons of energy ~150-250 MeV/nuc in solar cycle #23 from 2004 to 2010 has been followed at the Earth using IMP, ACE and balloon data and also at V2 between 74-92 AU and at V1 beyond the heliospheric termination shock (91-
Externí odkaz:
http://arxiv.org/abs/1111.2377
The recovery of cosmic ray He nuclei of energy ~150-250 MeV/nuc in solar cycle #23 from 2004 to 2010 has been followed at the Earth using IMP and ACE data and at V2 between 74-92 AU and also at V1 beyond the heliospheric termination shock (91-113 AU)
Externí odkaz:
http://arxiv.org/abs/1109.1810
We have compared the yearly production rates of 10Be by cosmic rays in the Earths polar atmosphere over the last 50-70 years with 10Be measurements from two separate ice cores in Greenland. These ice cores provide measurements of the annual 10Be conc
Externí odkaz:
http://arxiv.org/abs/1004.2675