The work on the prediction of antihelium flux from antimatter globular cluster conducted under our joint supervision with A.G.Mayorov by Alexandra Nadbitova and Anasatasia Kirichenko
Record of discussion of 06.11.2019
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Record of discussion of 15.02.2020
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Record of discussion of 04.04.2020
The following aspects were mentioned
1. The estimation of possible energy density is based on the amount of neutron stars in the globular cluster. However, one should take into account that this energy density corresponds only to a fraction of the total energy released in the supernova explosion. This aspect may be estimated from Sedov solution of accelerated shock wave in its propagation along the profile with decreasing density, as we mentioned in the paper
M.Yu.Khlopov, V.M.Chechetkin and R.A.Eramzhyan
Gamma-Ray Emission during Supernova Outbursts. Astron. Zh. (1980), V. 58,
PP. 343-349. [English translation: Sov. Astron. (1981) V. 25, P. 193]
See its English translation in
http://articles.adsabs.harvard.edu/pdf/1981SvA....25..193K
2. The correspondence of neutron stars to the presupernovae is not fairly well established. Even the type of Supernova that gave rise to Crab pulsar is still under debate (see e.g.
https://arxiv.org/abs/1304.0689, which reflects this uncertainty)
However, if neutron stars appear in the results of SN of I type (which don't contain hydrogen in the thrown out envelope) in the contrary with ordinary stars, interstellar gas, in which hydrogen dominates, doesn't join the expanding and accelerated envelope, but annihilates with antinuclei in the shock wave. It makes antinuclear cosmic rays dominantly containing antinuclei with admixture of products of their annihilation with protons of the interstellar gas, as compared with the ordinary cosmic ray content, in which protons dominate.
The record of discussion of 11.04.2020