JOURNAL ARTICLE

Electromagnetic radiation from binary stars mediated by ultralight scalar.

  • Published In: International Journal of Modern Physics D: Gravitation, Astrophysics & Cosmology, 2025, v. 34, n. 5. P. 1 1 of 3

  • Database: Academic Search Ultimate 2 of 3

  • Authored By: Cheng, Ya-Ze; Wu, Wen-Hao; Cao, Yan 3 of 3

Abstract

We present the electromagnetic (EM) dipole radiation flux from an eccentric Keplerian binary endowed with scalar charges, in the presence of scalar-photon coupling ϕ A μ A μ or ϕ F μ ν F μ ν . The scalar radiation is suppressed for orbital frequency below the scalar mass, while the scalar-mediated indirect EM radiation survives. We examine the constraints imposed on the scalar-photon and scalar-charge couplings by the current observational data of pulsar binaries, in case that the scalar charge is given by the muon number. The general extensions of the calculation to the quadrupole order and hyperbolic orbit are also discussed. [ABSTRACT FROM AUTHOR]

Additional Information

  • Source:International Journal of Modern Physics D: Gravitation, Astrophysics & Cosmology. 2025/04, Vol. 34, Issue 5, p1
  • Document Type:Article
  • Subject Area:Astronomy and Astrophysics
  • Publication Date:2025
  • ISSN:0218-2718
  • DOI:10.1142/S0218271825500221
  • Accession Number:184452635
  • Copyright Statement:Copyright of International Journal of Modern Physics D: Gravitation, Astrophysics & Cosmology is the property of World Scientific Publishing Company and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

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