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Constraints on Axion-like Particles from the Observation of GRB 221009A by LHAASO

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arxiv 2310.11391 v2 pith:UX6JQC7M submitted 2023-10-17 astro-ph.HE hep-ph

Lin-Qing Gao , Xiao-Jun Bi , Jun Li , Run-Min Yao , Peng-Fei Yin This is my paper · ORCID
classification astro-ph.HEhep-ph
keywords fieldgalaxyhostmagneticconstraintsmodellhaasomathrm
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abstract

The LHAASO collaboration recently reported the measurement of the gamma-ray spectra of GRB 221009A, which is the brightest burst ever, covering an energy range from 0.3 $\mathrm{TeV}$ to about 10 $\mathrm{TeV}$. Based on the observation, we investigate the ALP-photon oscillation effect in the host galaxy of GRB 221009A and the Milky Way. The ${\rm CL_s}$ method is applied to set constraints on the ALP parameters in this study. Given the uncertain magnetic field configuration in the host galaxy, we use three different models: a homogeneous magnetic field model, a magnetic field model identical to that of the Milky Way, and a model constructed from the HST observations of the host galaxy. We find that the constraints derived using these three host galaxy magnetic field models are comparable. Our results are complementary in the small ALP mass regions compared with other experiments.

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Cited by 2 Pith papers

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

  1. Carpet-3 detection of a photon-like air shower with estimated primary energy above 100 TeV in a spatial and temporal coincidence with GRB 221009A

    astro-ph.HE 2025-02 conditional novelty 6.0 of 10

    Carpet-3 reports a photon-like air shower with estimated energy around 300 TeV arriving from the direction of GRB 221009A about 75 minutes after the trigger, with a coincidence probability of about 0.9 percent.

  2. Exploring Constraints on Axion-like Particles with the Observations for blazar Mrk 501

    astro-ph.HE 2025-01 conditional novelty 6.0 of 10

    The ALP parameter constraints derived from Mrk 501 gamma-ray spectra vary by orders of magnitude depending on whether the jet emission is leptonic or hadronic and on the jet magnetic field geometry.

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