1 / 1

Exploring UHECR Spectra: Source Distributions and Energy Inputs in Astrophysics Models

This study investigates Ultra High Energy Cosmic Rays (UHECR) through three spectral models characterized by their source distributions. The upper curve, following a source spectrum of E-2.35 with a z-distribution aligned to the star formation rate, indicates a need for ten times the energy input compared to lower curves, also noting a 'pile-up effect.' The middle and lower curves both correspond to an E-2.75 spectrum, with the latter reflecting a uniform source distribution. Findings provide insights into cosmic ray production and implications for astrophysical processes.

amity-ramos
Télécharger la présentation

Exploring UHECR Spectra: Source Distributions and Energy Inputs in Astrophysics Models

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Measured and Predicted UHECR Spectra Upper Curve:E-2.35 Source Spectrum with source distribution that follows the z distribution of star formation rate, requires 10x energy input of lower curves and exhibits ‘pile-up effect’ Middle Curve:E-2.75 Source Spectrum with uniform source distribution Lower Curve:E-2.75 Source Spectrum with source distribution that follows the z distribution of star formation rate Scully and Stecker, Astropart Phys 16 (in press)

More Related