What Voyager cosmic ray data in the outer heliosphere tells us about 10Be production in the Earth's polar atmosphere in the recent past

Physics

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

6

Interplanetary Physics: Cosmic Rays, Interplanetary Physics: Energetic Particles (7514), Interplanetary Physics: Heliopause And Solar Wind Termination, Interplanetary Physics: Solar Cycle Variations (7536)

Scientific paper

Voyager measurements of the galactic proton and Helium nuclei spectra beyond the heliospheric termination shock and out to ˜110 AU seem to imply lower interstellar cosmic ray intensities of these nuclei than previously estimated. Using new interstellar spectra that are in much better agreement with these Voyager measurements we have calculated the production of 10Be in the Earth's polar atmosphere. This maximum possible 10Be production is only 1.47 ± 0.05 times the production occurring at recent times of minimum solar 11 year modulation between 1954 and 2009. This implies that the 10Be concentrations measured in polar ice cores at the times of the recent Spoerer and Maunder minima, which were between 1.6-2.0 times those measured recently at the times of minimum solar modulation, are most likely not solely related to changes in solar heliospheric modulation between these time periods, but other effects such as local and regional climate near the measuring sites may play a significant role in the differences in the relative 10Be concentration measurements at the two times.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

What Voyager cosmic ray data in the outer heliosphere tells us about 10Be production in the Earth's polar atmosphere in the recent past does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with What Voyager cosmic ray data in the outer heliosphere tells us about 10Be production in the Earth's polar atmosphere in the recent past, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and What Voyager cosmic ray data in the outer heliosphere tells us about 10Be production in the Earth's polar atmosphere in the recent past will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-794674

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.