| Title: |
NuSTAR as an axion helioscope |
| Authors: |
Ruz, J.; Todarello, E.; Vogel, J.K.; Candón, F.R.; Giannotti, M.; Grefenstette, B.; Hudson, H.S.; Hannah, I.G.; Irastorza, I.G.; Kim, C.S.; Regis, M.; Smith, D.M.; Taoso, M.; Trujillo Bueno, J. |
| Publisher Information: |
American Physical Society |
| Publication Year: |
2025 |
| Collection: |
University of Glasgow: Enlighten - Publications |
| Description: |
We present a novel approach to investigating axions and axionlike particles by studying their potential conversion into x-rays within the Sun’s atmospheric magnetic field. Utilizing high-sensitivity data from the nuclear spectroscopic telescope array (NuSTAR) collected during the 2020 solar minimum, along with advanced solar atmospheric magnetic field models, we establish a new limit on the axion-photon coupling strength gaγ ≲ 7.3 × 10−12 GeV−1 at 95% CL for axion masses ma ≲ 4 × 10−7 eV. This constraint surpasses current ground-based experimental limits, studying previously unexplored regions of the axion-photon coupling parameter space up to masses of ma ≲ 3.4 × 10−4 eV. These findings mark a significant advancement in our ability to probe axion properties and strengthen indirect searches for dark matter candidates. |
| Document Type: |
article in journal/newspaper |
| File Description: |
text |
| Language: |
English |
| Relation: |
https://eprints.gla.ac.uk/368396/1/368396.pdf; Ruz, J. et al. (2025) NuSTAR as an axion helioscope. Physical Review Letters , 135, 141001. (doi:10.1103/18sn-hxtb ) |
| Availability: |
https://eprints.gla.ac.uk/368396/; https://eprints.gla.ac.uk/368396/1/368396.pdf |
| Rights: |
cc_by_4 |
| Accession Number: |
edsbas.39BB941E |
| Database: |
BASE |