English
 
User Manual Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  The limited contribution of low- and high-luminosity gamma-ray bursts to ultra-high-energy cosmic rays

Samuelsson, F., Bégué, D., Ryde, F., & Pe’er, A. (2019). The limited contribution of low- and high-luminosity gamma-ray bursts to ultra-high-energy cosmic rays. The Astrophysical Journal, 876(2): 93. doi:10.3847/1538-4357/ab153c.

Item is

Basic

show hide
Item Permalink: http://hdl.handle.net/21.11116/0000-0003-BE67-4 Version Permalink: http://hdl.handle.net/21.11116/0000-0003-BE68-3
Genre: Journal Article

Files

show Files
hide Files
:
The Limited Contribution of Low- and High-luminosity Gamma-Ray Bursts to Ultra-high-energy Cosmic Rays.pdf (Any fulltext), 4MB
 
File Permalink:
-
Name:
The Limited Contribution of Low- and High-luminosity Gamma-Ray Bursts to Ultra-high-energy Cosmic Rays.pdf
Description:
-
Visibility:
Private
MIME-Type / Checksum:
application/pdf
Technical Metadata:
Copyright Date:
-
Copyright Info:
-
License:
-

Locators

show

Creators

show
hide
 Creators:
Samuelsson, Filip, Author
Bégué, Damien1, Author              
Ryde, Felix, Author
Pe’er, Asaf, Author
Affiliations:
1High Energy Astrophysics, MPI for Extraterrestrial Physics, Max Planck Society, ou_159890              

Content

show
hide
Free keywords: -
 Abstract: The acceleration site for ultra-high-energy cosmic rays (UHECRs) is still an open question despite extended research. In this paper, we reconsider the prompt phase of gamma-ray bursts (GRBs) as a possible candidate for this acceleration and constrain the maximum proton energy in optically thin synchrotron and photospheric models, using properties of the prompt photon spectra. We find that neither of the models favors acceleration of protons to 10 20 eV in high-luminosity bursts. We repeat the calculations for low-luminosity GRBs (llGRBs) considering both protons and completely stripped iron and find that the highest obtainable energies are <10 19 eV and <10 20 eV for protons and iron respectively, regardless of the model. We conclude therefore that for our fiducial parameters, GRBs, including low-luminosity bursts, contribute little to nothing to the UHECRs observed. We further constrain the conditions necessary for an association between UHECRs and llGRBs and find that iron can be accelerated to 10 20 eV in photospheric models, given very efficient acceleration and/or a small fractional energy given to a small fraction of accelerated electrons. This will necessarily result in high prompt optical fluxes, and the detection of such a signal could therefore be an indication of successful UHECR acceleration at the source.

Details

show
hide
Language(s):
 Dates: 2019-05-08
 Publication Status: Published online
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: DOI: 10.3847/1538-4357/ab153c
Other: LOCALID: 3066783
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: The Astrophysical Journal
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: Bristol, England : IOP Publishing LTD
Pages: - Volume / Issue: 876 (2) Sequence Number: 93 Start / End Page: - Identifier: ISSN: 1538-4357
CoNE: https://pure.mpg.de/cone/journals/resource/954922828215_3