NDLI: Non-variable cosmologically distant gamma-ray emitters as a propagation imprint of ultra-high-energy protons

Content Provider	EDP Sciences
Author	A. Yu. Prosekin S. R. Kelner F. A. Aharonian
Abstract	The acceleration sites of ultra-high-energy (UHE) protons can be traced by the footprint left by these particles when they propagate through cosmic microwave background (CMB) radiation. Secondary electrons produced in the extended region of several tens of Mpc emit their energy via synchrotron radiation predominantly in the initial direction of the parent protons. This forms a non-variable and compact (almost point-like) source of high-energy gamma rays. The importance of this effect is increased for cosmologically distant objects; because of severe energy losses, UHE protons cannot reach us even in the case of extremely weak intergalactic magnetic fields. Moreover, at high redshifts the energy conversion from protons to secondary particles becomes significantly more effective because of the denser and more energetic CMB in the past. This increases the chances of UHE cosmic rays to be traced by the secondary synchrotron gamma radiation. We discuss the energy budget and the redshift dependence of the energy transfer efficiency from UHE protons to synchrotron radiation. The angular and spectral distributions of radiation in the gamma- and X-ray energy bands are calculated and discussed in the context of their detectability by the Fermi LAT and Chandra observatories.
Page Count	7
File Format	HTM / HTML PDF
ISSN	00046361
Alternate Webpage(s)	https://www.aanda.org/articles/aa/abs/2011/12/aa17231-11/aa17231-11.html
e-ISSN	14320746
Journal	Astronomy & Astrophysics
Volume Number	536
DOI	10.1051/0004-6361/201117231
Language	English
Publisher	EDP Sciences
Publisher Date	2011-12-01
Access Restriction	Open
Rights Holder	© ESO, 2011
Subject Keyword	magnetic fields X-rays: general gamma rays: general astroparticle physics magnetic fields / X-rays: general / gamma rays: general / astroparticle physics
Content Type	Text
Resource Type	Article
Subject	Astronomy and Astrophysics Space and Planetary Science

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Non-variable cosmologically distant gamma-ray emitters as an imprint of propagation of ultra-high-energy protons

Detectability of ultrahigh energy cosmic-ray signatures in gamma-rays

Anisotropy expectations for ultra-high-energy cosmic rays with future high-statistics experiments

First limits on the very-high energy gamma-ray afterglow emission of a fast radio burst — H.E.S.S. observations of FRB 150418

The Galactic magnetic field and propagation of ultra-high energy cosmic rays

Multiwavelength follow-up of a rare IceCube neutrino multiplet

Anisotropic diffusion of Galactic cosmic ray protons and their steady-state azimuthal distribution

Nearby low-luminosity gamma-ray bursts as the sources of ultra-high-energy cosmic rays revisited

Ultrahigh energy Cosmic-Ray Interactions as the Origin of Very High-energy γ-Rays from BL Lacertae Objects

Non-variable cosmologically distant gamma-ray emitters as a propagation imprint of ultra-high-energy protons

Similar Documents

Non-variable cosmologically distant gamma-ray emitters as an imprint of propagation of ultra-high-energy protons

Detectability of ultrahigh energy cosmic-ray signatures in gamma-rays

Anisotropy expectations for ultra-high-energy cosmic rays with future high-statistics experiments

First limits on the very-high energy gamma-ray afterglow emission of a fast radio burst — H.E.S.S. observations of FRB 150418

The Galactic magnetic field and propagation of ultra-high energy cosmic rays

Multiwavelength follow-up of a rare IceCube neutrino multiplet

Anisotropic diffusion of Galactic cosmic ray protons and their steady-state azimuthal distribution

Nearby low-luminosity gamma-ray bursts as the sources of ultra-high-energy cosmic rays revisited

Ultrahigh energy Cosmic-Ray Interactions as the Origin of Very High-energy γ-Rays from BL Lacertae Objects

Non-variable cosmologically distant gamma-ray emitters as a propagation imprint of ultra-high-energy protons