Astronomy and Astrophysics – Astrophysics
Scientific paper
2001-02-12
Proc. 11th COSPAR Colloquium, ``The Outer Heliosphere: The Next Frontiers'', eds. K. Scherer et al. (Amsterdam: Pergamon), pp.
Astronomy and Astrophysics
Astrophysics
4 pages, latex, 4 figures. Talk given by I. Moskalenko at the COSPAR Colloquium ``The Outer Heliosphere: The Next Frontiers''
Scientific paper
Most cosmic ray antiprotons observed near the Earth are secondaries produced in collisions of energetic cosmic ray (CR) particles with interstellar gas. The spectrum of secondary antiprotons is expected to peak at ~2 GeV and decrease sharply at lower energies. This leaves a low energy window in which to look for signatures of exotic processes such as evaporation of primordial black holes or dark matter annihilation. In the inner heliosphere, however, modulation of CRs by the solar wind makes analysis difficult. Detecting these antiprotons outside the heliosphere on an interstellar probe removes most of the complications of modulation. We present a new calculation of the expected secondary antiproton flux (the background) as well as a preliminary design of a light-weight, low-power instrument for the interstellar probe to make such measurements.
Christian Eric R.
Moiseev Aleksei
Moskalenko Igor V.
Ormes Johnathan F.
Strong Andrew W.
No associations
LandOfFree
Antiprotons below 200 MeV in the interstellar medium: perspectives for observing exotic matter signatures 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 Antiprotons below 200 MeV in the interstellar medium: perspectives for observing exotic matter signatures, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Antiprotons below 200 MeV in the interstellar medium: perspectives for observing exotic matter signatures will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-443891