2010/11/21 by Yu. V. Stenkin, Stenkin, Yu. V.
Physics and Astronomy · #FOS: Physical sciences #High Energy Astrophysical Phenomena (astro-ph.HE) #astro-ph.HE
paper · pdf · doi:10.48550/arxiv.1011.4695
3 pages, 2 figures. Talk given for 22nd ECRS, Turku'2010
arxiv created 2010/11/21 · arxiv updated 2010/11/23
It is shown that a "second (iron) knee" in cosmic ray spectrum expected at energy about 100 PeV could not probably be found there. The reason is very simple: the position of the "iron knee" depends on an answer to the questions: "What do we see at 3-5 PeV? Is the knee seen at this energy associated with proton or iron primaries?"