BEXCO - Room F(201/202/203/204)
[SH042] New reconstruction of the heliospheric modulation potential for galactic cosmic rays
- Agnieszka GIL
- Agnieszka GIL (Institute of Mathematics and Physics, Siedlce University, Poland; ReSoLVE Centre of Excellence, University of Oulu, Finland)
- Eleanna ASVESTARI (ReSoLVE Centre of Excellence, University of Oulu, Finland; University of Helsinki, Department of Physics, Finland)
- Gennady KOVALTSOV (Ioffe Physical-Technical Institute, Russia)
- Ilya USOSKIN (ReSoLVE Centre of Excellence, University of Oulu, Finland; Sodankylä Geophysical Observatory, University of Oulu, Finland)
Recent direct in-situ measurements of the cosmic ray flux and its energy spectrum during the solar minimum, 2006–2009, a period of record high cosmic ray, by PAMELA space-borne spectrometer and appearance of the new-generation neutron monitor yield function have necessitated the new reconstruction of the heliospheric modulation potential. We compare the modern models of the local interstellar spectrum (LIS) and compute the global production rates of the cosmogenic isotopes 14C and 10Be as a function of solar modulation parameter φ. For this purpose, we use the newly computed altitude profiles of the production functions. Here, we present updated linear regressions which allow the conversion of the computed φ values between recent LIS models. We also compute the cosmic rays effective energy using various LIS.