Pith. sign in

REVIEW 5 cited by

The Physics of Pulsar Halos: Research Progress and Prospect

Not yet reviewed by Pith; the record is open.

This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.

SPECIMEN: schema-true, not a live event

T0 review · schema-true

One-sentence machine reading of the paper's core claim.

pith:XXXXXXXX · record.json · timestamp

arxiv 2207.04011 v1 pith:E625AZRP submitted 2022-07-08 astro-ph.HE

The Physics of Pulsar Halos: Research Progress and Prospect

classification astro-ph.HE
keywords pulsarhalosbeenemissionsgamma-raynebulaephysicspositron
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
0 comments
read the original abstract

Diffusive TeV gamma-ray emissions have been recently discovered extending beyond the pulsar wind nebulae of a few middle-aged pulsars, implying that energetic electron/positron pairs are escaping from the pulsar wind nebulae and radiating in the ambient interstellar medium. It has been suggested that these extended emissions constitute a distinct class of nonthermal sources, termed "pulsar halos". In this article, I will review the research progress on pulsar halos and discuss our current understanding on their physics, including the multiwavelength observations, different theoretical models, as well as implications for the origin of cosmic-ray positron excess and Galactic diffuse gamma-ray emission.

discussion (0)

Sign in with ORCID, Apple, or X to comment. Anyone can read and Pith papers without signing in.

Forward citations

Cited by 5 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. PHECT: A lightweight computation tool for pulsar halo emission

    astro-ph.HE 2025-08 unverdicted novelty 6.0

    PHECT is a configurable computation tool for pulsar halo gamma-ray emission using multiple transport models and stable finite-volume discretizations.

  2. Search for TeV emission from spider millisecond pulsars with HAWC

    astro-ph.HE 2026-03 unverdicted novelty 5.0

    HAWC observations yield no TeV detections from spider MSPs, with upper limits indicating they are unlikely to contribute substantially to Galactic diffuse emission at TeV energies.

  3. Discrete treatment of inverse Compton scattering: implications on parameter estimation in gamma-ray astronomy

    astro-ph.HE 2025-03 unverdicted novelty 5.0

    Discrete ICS simulation shows continuous approximations overestimate evolved cutoff energies, leading to lower inferred electron injection cutoffs for Geminga at 95% CL and potential overestimation of acceleration in ...

  4. Constraining the slow-diffusion zone size and electron injection spectral index for the Geminga pulsar halo

    astro-ph.HE 2023-10 unverdicted novelty 5.0

    A two-zone diffusion model fitted to HAWC morphology and spectrum data constrains Geminga's slow-diffusion zone to 30-70 pc and injection index p ≤ 2.17, reproducing AMS-02 positrons as a derived outcome.

  5. Resolving diffusion signatures in distant pulsar halos with current and future experiments

    astro-ph.HE 2026-03 unverdicted novelty 4.0

    Simulations indicate that CTA's angular resolution and LHAASO-KM2A's large area will improve morphological separation of diffusion-based pulsar halos from simpler spatial models.