Supernova and Cosmic Rays
نویسندگان
چکیده
منابع مشابه
Cosmic rays, stellar evolution, and supernova physics
Most cosmic rays are thought to be accelerated by the shocks of supernova explosions of very massive stars. Here we review one quantitative proposal, which predicted the spectral slopes, bend and cutoff about the cosmic ray spectrum across the spectral bend or “knee” near 3 10 eV in 1993. Many of the specific predictions have now been verified, and so it may be appropiate to investigate the con...
متن کاملEffect of nearby supernova remnants to the local Cosmic-Rays
The effect of different particle release time from the sources to the cosmic-ray (CR) spectrum below 10eV in the Galaxy are studied in detail. We discuss different possible forms of particle injection like the burst-like injection, continuous injection for a finite time, injection from a stationary source and energy dependent injection. When applied to the nearby known supernova remnants, it is...
متن کاملEffect of nearby supernova remnants on local Cosmic-Rays
We study in detail the effect of different particle release times from sources on the cosmic-ray (CR) spectrum below 10eV in the Galaxy. We discuss different possible forms of particle injection such as burst-like injection, continuous injection for a finite time, injection from a stationary source and energy dependent injection. When applied to the nearby known supernova remnants, we find that...
متن کاملSecondary Acceleration of Cosmic Rays by Supernova Shocks
In the common model supernova shock-acceleration of cosmic rays there are two open questions: 1. where does the high energy cosmic rays below the knee (10 − 10 Gev) come from, and 2. are cosmic ray accelerated only at their origin or contineuosly during their residence in the Galaxy. We show that 105 eV light nuclei are probably accelerted by associations of supernovae. The ratio of the spectra...
متن کاملThe Source of Cosmic Rays: 3. Supernova Grain Composition
We show that the expected composition of cosmic rays accelerated from the erosion products of fast supernova grains in the hot interstellar medium (HISM) of ejecta enriched superbubbles, where the bulk ( 85%) of Galactic supernovae occur, is consistent with the currently available cosmic ray data. In particular, we show that if the cosmic ray metals come from the sputtering of fast refractory g...
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ژورنال
عنوان ژورنال: Symposium - International Astronomical Union
سال: 1981
ISSN: 0074-1809
DOI: 10.1017/s0074180900074374