Cosmic-ray energy spectra

This package is deprecated. Please use the official CRDB Python package.

This Python package provides a database of published cosmic-ray energy spectra, measured by surface detectors like IceTop or the Pierre Auger Observatory; see references. Moreover, it gives access to the Cosmic-Ray DataBase (CRDB), which includes electrons, positrons, anti-protons, and nuclide up to Z = 30 for energies below the cosmic-ray knee.

Installation

The easiest way to install this project is by using pip:

pip install crspectra

Getting started

The measured cosmic-ray energy spectra can be requested via:

import crspectra

with crspectra.connect() as database:
   for experiment in database:
      spectrum = database[experiment]

A structured NumPy array is returned containing the requested cosmic-ray data. The fields are energy, flux, statistical stat and systematical sys uncertainty on the flux, and uncertainty is upper a limit uplim. The energy is given in GeV and the flux is given in GeV^-1 m^-2 s^-1 sr^-1. The uncertainties describe the lower and upper uncertainty relative to the flux.

Data from CRDB can be requested via:

spectrum = crspectra.from_external("AMS-02")

Note that CRDB also provides the papers that should be citied.

The following plot was created using this package; see the example Jupyter Notebook:

References

Please cite the following papers when using this database:

Auger

The Pierre Auger Collaboration, Proceedings of the 35th International Cosmic Ray Conference, Vol. ICRC2017, Proceedings of Science, 2017, p. 486

CREAM-I/III

Yoon et al., The Astrophysical Journal 839.1 (2017), p. 5

GAMMA

Ter-Antonyan, Physical Review D89.12 (2014), p. 123003

HAWC

Alfaro et al., Physical Review D96.12 (2017), p. 12201

HiRes/MIA

Abu-Zayyad et al., The Astrophysical Journal 557 (2001), pp. 686-699

HiRes-I and HiRes-II

Abbasi et al., Physical Review Letters 100 (2008), p. 101101

IceTop-73

Aartsen et al., Physical Review D88.4 (2013), p. 042004

KASCADE

Antoni et al., Astroparticle Physics 24 (2005), pp. 1-25

KASCADE-Grande

Apel et al., The Astrophysical Journal 36 (2012), pp. 183-194

Tibet-III

Amenomori et al., The Astrophysical Journal 678 (2008), pp. 1165-1179

CRDB

Maurin et al., Astronomy & Astrophysics 569 (2014), A32

CRDB v4.0

Maurin et al., Universe 6 (2020) 8, 102

Notes

I have created this database in mid of 2017 when I started writing on my PhD thesis. In case you find a publication with newer data, feel free to request its addition.