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Constraints on Axion-like Particles from a Hard $X$-ray Observation of Betelgeuse

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arxiv 2009.09059 v2 pith:64MQUJHZ submitted 2020-09-18 astro-ph.HE hep-ph

Mengjiao Xiao , Kerstin M. Perez , Maurizio Giannotti , Oscar Straniero , Alessandro Mirizzi , Brian W. Grefenstette , Brandon M. Roach , Melania Nynka This is my paper
classification astro-ph.HEhep-ph
keywords betelgeusefieldhardmagneticobservationalpsaxion-likeexpected
verification ladder T0 review T1 audit T2 compute T3 formal
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abstract

We use the first observation of Betelgeuse in hard $X$-rays to perform a novel search for axion-like particles (ALPs). Betelgeuse is not expected to be a standard source of $X$-rays, but light ALPs produced in the stellar core could be converted back into photons in the Galactic magnetic field, producing a detectable flux that peaks in the hard $X$-ray band ($E_\gamma>10\mathrm{\,keV}$). Using a 50 ks observation of Betelgeuse by the $NuSTAR$ satellite telescope, we find no significant excess of events above the expected background. Using models of the regular Galactic magnetic field in the direction of Betelgeuse, we set a 95% C.L. upper limit on the ALP-photon coupling of ${g_{a\gamma}<(0.5-1.8)\times10^{-11}}$ GeV$^{-1}$ (depending on magnetic field model) for ALP masses ${m_{a}<(5.5-3.5) \times10^{-11}}$ eV.

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Cited by 3 Pith papers

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

  1. Lights, Camera, Axion: Tracing Axions from Supernovae in the Diffuse $\gamma$-ray Sky

    hep-ph 2026-04 unverdicted novelty 7.0 of 10

    Axions produced in supernovae generate a diffuse gamma-ray signal through conversion in magnetic fields, yielding competitive constraints on the axion-photon coupling from COMPTEL, EGRET, and Fermi-LAT data plus forec...

  2. Bounds on massive graviton-like particles from searches for axion-like particles coupling to photons

    hep-ph 2026-05 unverdicted novelty 6.0 of 10

    Limits on axion-like particles from photon-coupling searches are recast as constraints on massive graviton-like particles across lab, astrophysical, and cosmological experiments using analogous Primakoff and Gertsensh...

  3. Exploring the Magnetic Field Structure of the Milky Way with Pulsars in the SKA Era

    astro-ph.HE 2026-07 accept novelty 2.5 of 10

    SKA1 AA* and AA4 will roughly double-to-triple the known pulsar population and supply thousands of new RMs, enabling detailed 3D mapping of Galactic disk and halo magnetic fields.

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