Journal article
Constraints on massive axion-like particles from X-ray observations of NGC1275
- Abstract:
- If axion-like particles (ALPs) exist, photons can convert to ALPs on passage through regions containing magnetic fields. The magnetised intracluster medium of large galaxy clusters provides a region that is highly efficient at ALP-photon conversion. X-ray observations of Active Galactic Nuclei (AGNs) located within galaxy clusters can be used to search for and constrain ALPs, as photon-ALP conversion would lead to energy-dependent quasi-sinusoidal modulations in the X-ray spectrum of an AGN. We use Chandra observations of the central AGN of the Perseus Cluster, NGC1275, to place bounds on massive ALPs up to ma ∼ 10−11eV, extending previous work that used this dataset to constrain massless ALPs.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
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(Preview, Version of record, pdf, 912.2KB, Terms of use)
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- Publisher copy:
- 10.1093/mnras/sty1591
Authors
- Publisher:
- Oxford University Press
- Journal:
- Monthly Notices of the Royal Astronomical Society More from this journal
- Volume:
- 479
- Issue:
- 2
- Pages:
- 2243–2248
- Publication date:
- 2018-06-14
- Acceptance date:
- 2018-06-12
- DOI:
- EISSN:
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1365-2966
- ISSN:
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0035-8711
- Keywords:
- Pubs id:
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pubs:859711
- UUID:
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uuid:b29892f4-ccb7-4e44-8faa-93fe7a984697
- Local pid:
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pubs:859711
- Source identifiers:
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859711
- Deposit date:
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2018-06-28
Terms of use
- Copyright holder:
- Chen etal
- Copyright date:
- 2018
- Notes:
- © 2018 The Authors. This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society ©: 2018 Chen et.al. Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved.
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