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Constraints on Axion-Like Particles from X-ray Observations of NGC1275

Abstract:

Axion-like particles (ALPs) can induce localised oscillatory modulations in the spectra of photon sources passing through astrophysical magnetic fields. Ultra-deep Chandra observations of the Perseus cluster contain over $5 \times 10^5$ counts from the AGN of the central cluster galaxy NGC1275, and represent a dataset of extraordinary quality for ALP searches. We use this dataset to search for X-ray spectral irregularities from the AGN. The absence of irregularities at the O(30%) level allows...

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

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Publisher copy:
10.3847/1538-4357/aa8b16

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Institution:
University of Oxford
Division:
MPLS Division
Department:
Physics; Theoretical Physics
Oxford college:
New College
More by this author
Institution:
University of Oxford
Division:
MPLS Division
Department:
Physics; Theoretical Physics
More by this author
Institution:
University of Oxford
Division:
MPLS Division
Department:
Physics; Theoretical Physics
More by this author
Institution:
University of Oxford
Division:
MPLS Division
Department:
Physics; Theoretical Physics
Expand authors...
More from this funder
Grant:
“Supersymmetry Breaking in String Theory” (307605)
Publisher:
IOP Publishing Publisher's website
Journal:
Astrophysical Journal Journal website
Volume:
847
Issue:
2
Pages:
101
Publication date:
2017-09-27
Acceptance date:
2017-09-05
DOI:
EISSN:
1538-4357
ISSN:
0004-637X
Pubs id:
pubs:646361
URN:
uri:5d9b1ed3-a81d-467f-ad5e-a802e987f66a
UUID:
uuid:5d9b1ed3-a81d-467f-ad5e-a802e987f66a
Local pid:
pubs:646361

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