Scholarlink

<p>Axions or axion-like particles (ALPs) are one of the promising dark matter (DM) candidates. A prevalent method to detect axion-like DM is to seek periodic oscillation in the polarization angles (PAs) of linearly polarized light emitted from astrophysical sources. In this work, we use the time-resolved polarization measurements of the hyperactive repeating fast radio burst, FRB 20220912A, detected by the Five-hundred-meter Aperture Spherical radio Telescope (FAST) to search for extragalactic axion-like DM. Given a DM density profile of FRB 20220912A’s host, we obtain upper limits on the ALP-photon coupling constant of <i>g</i><sub><i>a</i><i>γ</i></sub>&#xa0;&lt;&#xa0;(3.4 × 10<sup>−11</sup>−1.9 × 10<sup>−9</sup>) GeV<sup>−1</sup> for the ALP masses <i>m</i><sub><i>a</i></sub>&#xa0;~&#xa0;(1.4 × 10<sup>−21</sup>−5.2 × 10<sup>−20</sup>) eV. Persistent polarimetric observations with FAST would extend the constraints to lower masses. Although the <i>g</i><sub><i>a</i><i>γ</i></sub> constraints derived from FRBs are less competitive than those from other methods, FRBs offer an alternative way to detect axion-like DM on extragalactic distance scales, complementary to galactic DM probes.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Detecting extragalactic axion-like dark matter with polarization measurements of fast radio bursts

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2025年4月1日

查看全文
  • Bao Wang,
  • Xuan Yang,
  • Jun-Jie Wei,
  • Song-Bo Zhang,
  • Xue-Feng Wu

摘要

Axions or axion-like particles (ALPs) are one of the promising dark matter (DM) candidates. A prevalent method to detect axion-like DM is to seek periodic oscillation in the polarization angles (PAs) of linearly polarized light emitted from astrophysical sources. In this work, we use the time-resolved polarization measurements of the hyperactive repeating fast radio burst, FRB 20220912A, detected by the Five-hundred-meter Aperture Spherical radio Telescope (FAST) to search for extragalactic axion-like DM. Given a DM density profile of FRB 20220912A’s host, we obtain upper limits on the ALP-photon coupling constant of gaγ < (3.4 × 10−11−1.9 × 10−9) GeV−1 for the ALP masses ma ~ (1.4 × 10−21−5.2 × 10−20) eV. Persistent polarimetric observations with FAST would extend the constraints to lower masses. Although the gaγ constraints derived from FRBs are less competitive than those from other methods, FRBs offer an alternative way to detect axion-like DM on extragalactic distance scales, complementary to galactic DM probes.