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Improving statistical sensitivity of X-ray searches for axion-like particles

Abstract:

X-ray observations of bright AGNs in or behind galaxy clusters offer unique capabilities to constrain axion-like particles. Existing analysis technique relies on measurements of the global goodness of fit. We develop a new analysis methodology that improves the statistical sensitivity to ALP–photon oscillations by isolating the characteristic quasi-sinusoidal modulations induced by ALPs. This involves analysing residuals in wavelength space allowing the Fourier structure to be made manifest a...

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Publication status:
Published
Peer review status:
Peer reviewed
Version:
Publisher's version

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Publisher copy:
10.1093/mnras/stz211

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Institution:
University of Oxford
Division:
MPLS Division
Department:
Physics
Subgroup:
Theoretical Physics
Oxford college:
New College
Role:
Author
ORCID:
0000-0002-0809-1416
More by this author
Role:
Author
ORCID:
0000-0003-2490-8331
Publisher:
Oxford University Press Publisher's website
Journal:
Monthly Notices of the Royal Astronomical Society Journal website
Volume:
484
Issue:
3
Pages:
3573–3581
Publication date:
2019-01-25
Acceptance date:
2019-01-17
DOI:
EISSN:
1365-2966
ISSN:
0035-8711
Pubs id:
pubs:966391
URN:
uri:8ca782e3-ce91-4e5a-9772-f9df860806d8
UUID:
uuid:8ca782e3-ce91-4e5a-9772-f9df860806d8
Local pid:
pubs:966391
Language:
English
Keywords:

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