Search for a command to run...
Version 2: data supporting Nica, Anna et al. "Cosmogenic 10Be as a Tracer for Recent Heliospheric Encounters with Interstellar Cold Clouds". We implement the CRAC:10Be model (Poluianov et al. 2016) to calculate 10Be production in Earth's atmosphere. In Version 2, the Jupyter Notebook CRAC10Be_HEPs_v2.ipynb calculates 10Be production and 10Be signal in marine archives. The notebook implements functions from the library CRACin.py, which implements the CRAC (Cosmic Ray Atmospheric Cascade) suite of models. The following files contain data sets from other sources: Spec_HEP_at0.118AU.dat (Opher et al. 2026) BESS_1AU.csv (Cummings et al. 2016) IMP8_1AU.csv (Cummings et al. 2016) V1.csv (Cummings et al. 2016) halloween.csv (Opher et al. 2026, Mewaldt et al. 2005) halloween_lower.csv (Opher et al. 2026, Mewaldt et al. 2005) halloween_upper.csv (Opher et al. 2026, Mewaldt et al. 2005) QG_Pavlov2017_BERT.csv (Pavlov et al. 2017) QG_Poluianov2016.csv (Poluianov et al. 2016) In Version 2, data from the PAMELA spacecraft is used, from the file PAMELAp.csv (Adriani et al. 2011) Adriani, O., Barbarino, G. C., Bazilevskaya, G. A., Bellotti, R., Boezio, M., Bogomolov, E. A., ... Zverev, V. G. (2011, April). PAMELA Measurements of Cosmic-Ray Proton and Helium Spectra. Science, 332(6025), 69. doi: 10.1126/science.1199172 Cummings, A.C., Stone, E.C., Heikkila, B.C., Lal, N., Webber, W.R., Jóhannesson, G., Moskalenko, I.V., Orlando, E., Porter, T.A., 2016. Galactic Cosmic Rays in the Local Interstellar Medium: Voyager 1 Observations and Model Results. The Astrophysical Journal 831, 18. https://doi.org/10.3847/0004-637X/831/1/18 Opher, M., Giacalone, J., Loeb, A., Economo, E., Cummings, A., Middleton, J., Zucker, C., Miller, J., Nica, A., Hatzaki, M. (2026, February). Increased and varied radiation during the Sun's encounters with cold clouds in the last 10 million years. Scientific Reports. doi:10.1038/s41550-024-02279-8 Pavlov, A.K., Blinov, A.V., Frolov, D.A., Konstantinov, A.N., Ostryakov, V.M., Vasilyev, G.I., 2017. Spatial distribution of the atmospheric radionuclide production by galactic cosmic rays and its imprint in natural archives. Journal of Atmospheric and Solar-Terrestrial Physics 164, 308–313. https://doi.org/10.1016/j.jastp.2017.09.016 Poluianov, S., Kovaltsov, G.A., Mishev, A.L., Usoskin, I.G., 2016. Production of cosmogenic isotopes 7Be, 10Be, 14C, 22Na, and 36Cl in the atmosphere: Altitudinal profiles of yield functions. Journal of Geophysical Research: Atmospheres 121, 8125–8136. https://doi.org/10.1002/2016JD025034