Search Menu
DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information
Search Scholarly Publications

Title: Diffuse ultrahigh-energy gamma-ray emission from TeV halos

Journal Article · · Physical Review. D.
ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [2]; ORCiD logo [1]; ORCiD logo [3]; ORCiD logo [4]
  1. Univ. of Chicago, IL (United States). Kavli Inst. for Cosmological Physics (KICP)
  2. Univ. of Chicago, IL (United States). Kavli Inst. for Cosmological Physics (KICP); Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
  3. Univ. of Chicago, IL (United States)
  4. Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
+ Show Author Affiliations

The LHAASO Collaboration has recently reported a measurement of the diffuse gamma-ray emission from the Galactic Plane at energies between 10 TeV and 1 PeV. While this emission is brighter than that expected from cosmic-ray interactions in the interstellar medium alone, we show that the intensity, spectrum, and morphology of this excess are in good agreement with that predicted from the “TeV halos” which surround the Milky Way’s pulsar population. Here, these results support the conclusion that TeV halos dominate the ultrahigh-energy sky, and that these objects convert ~5% of their total spindown power into very high and ultrahigh-energy photons.

Research Organization:
Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), High Energy Physics (HEP); National Science Foundation (NSF)
Grant/Contract Number:
AC02-07CH11359
OSTI ID:
1984947
Report Number(s):
FERMILAB-PUB--23-272-T; arXiv:2306.00051; oai:inspirehep.net:2664573
Journal Information:
Physical Review. D., Journal Name: Physical Review. D. Journal Issue: 8 Vol. 109; ISSN 2470-0010
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

References (42)

The Galactic Population and Birth Rate of Radio Pulsars journal January 2004
Planck intermediate results : XLVIII. Disentangling Galactic dust emission and cosmic infrared background anisotropies journal December 2016
The population of TeV pulsar wind nebulae in the H.E.S.S. Galactic Plane Survey journal April 2018
Galactocentric variation of the gas-to-dust ratio and its relation with metallicity journal October 2017
The H.E.S.S. Galactic plane survey journal April 2018
Detection of the gravitational redshift in the orbit of the star S2 near the Galactic centre massive black hole journal July 2018
Population synthesis of pulsar wind nebulae and pulsar halos in the Milky Way journal September 2022
On the z -distribution of pulsars journal September 2004
The highest energy HAWC sources are likely leptonic and powered by pulsars journal August 2021
Constraining the local pulsar population with the cosmic-ray positron fraction journal October 2022
The pulsar kick velocity distribution journal November 1997
Vertical waves in the solar neighbourhood in Gaia DR2 journal October 2018
Positron flux and γ-ray emission from Geminga pulsar and pulsar wind nebula journal January 2019
TeV halos are everywhere: Prospects for new discoveries journal August 2019
Evidences of low-diffusion bubbles around Galactic pulsars journal May 2020
Contribution of pulsars to cosmic-ray positrons in light of recent observation of inverse-Compton halos journal July 2020
Evidence of TeV halos around millisecond pulsars journal May 2022
Constraints on the e± pair injection of pulsar halos: Implications from the Galactic diffuse multi-TeV gamma-ray emission journal May 2023
HAWC observations strongly favor pulsar interpretations of the cosmic-ray positron excess journal November 2017
Using HAWC to discover invisible pulsars journal November 2017
Understanding the spectral hardenings and radial distribution of Galactic cosmic rays and Fermi diffuse γ rays with spatially-dependent propagation journal March 2018
Lessons from HAWC pulsar wind nebulae observations: The diffusion constant is not a constant; pulsars remain the likeliest sources of the anomalous positron fraction; cosmic rays are trapped for long periods of time in pockets of inefficient diffusion journal June 2018
Diffuse Galactic gamma-ray flux at very high energy journal August 2018
Millisecond pulsars, TeV halos, and implications for the Galactic Center gamma-ray excess journal August 2018
Measuring the local diffusion coefficient with H.E.S.S. observations of very high-energy electrons journal October 2018
Pulsar TeV Halos Explain the Diffuse TeV Excess Observed by Milagro journal March 2018
Understanding the Multiwavelength Observation of Geminga’s Tev Halo: The Role of Anisotropic Diffusion of Particles journal November 2019
Multiple Galactic Sources with Emission Above 56 TeV Detected by HAWC journal January 2020
First Detection of sub-PeV Diffuse Gamma Rays from the Galactic Disk: Evidence for Ubiquitous Galactic Cosmic Rays beyond PeV Energies journal April 2021
Measurement of Ultra-High-Energy Diffuse Gamma-Ray Emission of the Galactic Plane from 10 TeV to 1 PeV with LHAASO-KM2A journal October 2023
Evidence for TeV Gamma-Ray Emission from a Region of the Galactic Plane journal December 2005
Extended gamma-ray sources around pulsars constrain the origin of the positron flux at Earth journal November 2017
Observation of high-energy neutrinos from the Galactic plane journal June 2023
The 2HWC HAWC Observatory Gamma-Ray Catalog journal June 2017
High-energy Gamma Rays from the Milky Way: Three-dimensional Spatial Models for the Cosmic-Ray and Radiation Field Densities in the Interstellar Medium journal August 2017
Two-zone Diffusion of Electrons and Positrons from Geminga Explains the Positron Anomaly journal August 2018
Cosmic-Ray Propagation in Light of the Recent Observation of Geminga journal July 2019
3HWC: The Third HAWC Catalog of Very-high-energy Gamma-Ray Sources journal December 2020
Unresolved Sources Naturally Contribute to PeV Gamma-Ray Diffuse Emission Observed by Tibet ASγ journal March 2022
Galactic Diffuse γ-Ray Emission from GeV to PeV Energies in Light of Up-to-date Cosmic-Ray Measurements journal October 2023
The First LHAASO Catalog of Gamma-Ray Sources journal February 2024
Evidence that Ultra-high-energy Gamma Rays Are a Universal Feature near Powerful Pulsars journal April 2021

Similar Records

Searches for Neutrinos from Large High Altitude Air Shower Observatory Ultra-high-energy $γ$-Ray Sources Using the IceCube Neutrino Observatory
Journal Article · 2023 · The Astrophysical Journal. Letters · OSTI ID:2229668
+386 more
Evidence of TeV halos around millisecond pulsars
Journal Article · 2022 · Physical Review. D. · OSTI ID:1824147
A search for dark matter in the Galactic halo with HAWC
Journal Article · 2018 · Journal of Cosmology and Astroparticle Physics · OSTI ID:1430014
+100 more

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
79 ASTRONOMY AND ASTROPHYSICS