FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W3099392679> ?p ?o ?g. }

• W3099392679 endingPage "A33" @default.
• W3099392679 startingPage "A33" @default.
• W3099392679 abstract "We have carried out a detailed study to understand the observed energy spectrum and composition of cosmic rays with energies up to ~10^18 eV. Our study shows that a single Galactic component with subsequent energy cut-offs in the individual spectra of different elements, optimised to explain the observed spectra below ~10^14 eV and the knee in the all-particle spectrum, cannot explain the observed all-particle spectrum above ~2x10^16 eV. We discuss two approaches for a second component of Galactic cosmic rays -- re-acceleration at a Galactic wind termination shock, and supernova explosions of Wolf-Rayet stars, and show that the latter scenario can explain almost all observed features in the all-particle spectrum and the composition up to ~10^18 eV, when combined with a canonical extra-galactic spectrum expected from strong radio galaxies or a source population with similar cosmological evolution. In this two-component Galactic model, the knee at ~ 3x10^15 eV and the second knee at ~10^17 eV in the all-particle spectrum are due to the cut-offs in the first and second components, respectively. We also discuss several variations of the extra-galactic component, from a minimal contribution to scenarios with a significant component below the ankle (at ~4x10^18 eV), and find that extra-galactic contributions in excess of regular source evolution are neither indicated nor in conflict with the existing data. Our main result is that the second Galactic component predicts a composition of Galactic cosmic rays at and above the second knee that largely consists of helium or a mixture of helium and CNO nuclei, with a weak or essentially vanishing iron fraction, in contrast to most common assumptions. This prediction is in agreement with new measurements from LOFAR and the Pierre Auger Observatory which indicate a strong light component and a rather low iron fraction between ~10^17 and 10^18 eV." @default.
• W3099392679 created "2020-11-23" @default.
• W3099392679 creator A5009878905 @default.
• W3099392679 creator A5010632581 @default.
• W3099392679 creator A5030849080 @default.
• W3099392679 creator A5050345412 @default.
• W3099392679 creator A5056044201 @default.
• W3099392679 creator A5086564105 @default.
• W3099392679 creator A5091563789 @default.
• W3099392679 date "2016-10-25" @default.
• W3099392679 modified "2023-10-15" @default.
• W3099392679 title "Cosmic-ray energy spectrum and composition up to the ankle: the case for a second Galactic component" @default.
• W3099392679 cites W1480366033 @default.
• W3099392679 cites W1521485834 @default.
• W3099392679 cites W1551670843 @default.
• W3099392679 cites W1678685671 @default.
• W3099392679 cites W1894075981 @default.
• W3099392679 cites W1963647865 @default.
• W3099392679 cites W1964293522 @default.
• W3099392679 cites W1967892773 @default.
• W3099392679 cites W1968848071 @default.
• W3099392679 cites W1969092613 @default.
• W3099392679 cites W1977992629 @default.
• W3099392679 cites W1978826366 @default.
• W3099392679 cites W1979590486 @default.
• W3099392679 cites W1983288518 @default.
• W3099392679 cites W1986014666 @default.
• W3099392679 cites W1987122351 @default.
• W3099392679 cites W1989361110 @default.
• W3099392679 cites W1989756559 @default.
• W3099392679 cites W1991512239 @default.
• W3099392679 cites W1994673795 @default.
• W3099392679 cites W1998174391 @default.
• W3099392679 cites W1999663363 @default.
• W3099392679 cites W1999739890 @default.
• W3099392679 cites W2002973683 @default.
• W3099392679 cites W2003360851 @default.
• W3099392679 cites W2005603255 @default.
• W3099392679 cites W2005981582 @default.
• W3099392679 cites W2006664562 @default.
• W3099392679 cites W2006785706 @default.
• W3099392679 cites W2012916202 @default.
• W3099392679 cites W2015350669 @default.
• W3099392679 cites W2015750713 @default.
• W3099392679 cites W2018130427 @default.
• W3099392679 cites W2023766335 @default.
• W3099392679 cites W2026136219 @default.
• W3099392679 cites W2029254136 @default.
• W3099392679 cites W2029989589 @default.
• W3099392679 cites W2031145954 @default.
• W3099392679 cites W2032882333 @default.
• W3099392679 cites W2041888832 @default.
• W3099392679 cites W2045483269 @default.
• W3099392679 cites W2053181169 @default.
• W3099392679 cites W2055501207 @default.
• W3099392679 cites W2064221922 @default.
• W3099392679 cites W2069414247 @default.
• W3099392679 cites W2079030740 @default.
• W3099392679 cites W2083055131 @default.
• W3099392679 cites W2086176665 @default.
• W3099392679 cites W2087430399 @default.
• W3099392679 cites W2089804264 @default.
• W3099392679 cites W2089918076 @default.
• W3099392679 cites W2096565594 @default.
• W3099392679 cites W2102238790 @default.
• W3099392679 cites W2102313911 @default.
• W3099392679 cites W2109032493 @default.
• W3099392679 cites W2110996783 @default.
• W3099392679 cites W2117086324 @default.
• W3099392679 cites W2120574945 @default.
• W3099392679 cites W2122658693 @default.
• W3099392679 cites W2123645395 @default.
• W3099392679 cites W2126611763 @default.
• W3099392679 cites W2128465997 @default.
• W3099392679 cites W2130577193 @default.
• W3099392679 cites W2132571203 @default.
• W3099392679 cites W2134239747 @default.
• W3099392679 cites W2137070996 @default.
• W3099392679 cites W2138003640 @default.
• W3099392679 cites W2138672762 @default.
• W3099392679 cites W2142299566 @default.
• W3099392679 cites W2153154960 @default.
• W3099392679 cites W2154939356 @default.
• W3099392679 cites W2156046826 @default.
• W3099392679 cites W2160210077 @default.
• W3099392679 cites W2163770281 @default.
• W3099392679 cites W2165331371 @default.
• W3099392679 cites W2168466376 @default.
• W3099392679 cites W2170070152 @default.
• W3099392679 cites W2172059934 @default.
• W3099392679 cites W2252702481 @default.
• W3099392679 cites W2293901117 @default.
• W3099392679 cites W2309394258 @default.
• W3099392679 cites W2398320389 @default.
• W3099392679 cites W3098977317 @default.
• W3099392679 cites W3099043162 @default.
• W3099392679 cites W3099484974 @default.
• W3099392679 cites W3099681467 @default.

• next