Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003agufmsh12c..08f&link_type=abstract
American Geophysical Union, Fall Meeting 2003, abstract #SH12C-08
Astronomy and Astrophysics
Astronomy
2114 Energetic Particles, Heliospheric (7514), 2144 Interstellar Gas, 2151 Neutral Particles, 2152 Pickup Ions
Scientific paper
Interstellar material dominates the mass density in the heliosheath, and the physical properties of the heliosheath regions are shaped by the interaction of the interstellar medium (ISM) with the solar wind. The characteristics of pickup ions, anomalous cosmic rays, and He observed inside of the solar system depend on the chemical composition and ionization of the cloud surrounding the solar system. Currently, radiative transfer models of the surrounding cloud, constrained by observations of ISM inside and outside of the heliosphere, provide the best determination of cloud properties. We present recent models of the surrounding cloud based on in situ and astronomical observations of the ISM. These models imply n(HI)~0.21 /cc at the solar location and subsolar interstellar abundances for many common elements. The models also yield direct predictions of filtration in the heliosheath regions, yielding F(H)~0.4, F(O)~0.6, F(N)~0.7, and F(Ar)~0.6. The robustness of these models is tested against observations and models of pickup Ne and anomalous cosmic ray Ar in the heliosheath regions, which in turn constrains the ionization of the surrounding interstellar cloud.
Frisch Priscilla C.
Slavin Jonathan D.
No associations
LandOfFree
Interstellar Ne and Ar in the Heliosphere: Diagnostics of Interstellar Ionization and Outer Heliosphere Processes 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 Interstellar Ne and Ar in the Heliosphere: Diagnostics of Interstellar Ionization and Outer Heliosphere Processes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Interstellar Ne and Ar in the Heliosphere: Diagnostics of Interstellar Ionization and Outer Heliosphere Processes will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1643759