Search for Spectral Irregularities due to Photon-Axionlike-Particle Oscillations with the Fermi Large Area Telescope
Journal
Date Issued
2016
Author(s)
Ajello, M.
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Albert, A.
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Anderson, B.
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Baldini, L.
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Barbiellini, G.
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Bastieri, D.
•
Bellazzini, R.
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Bissaldi, E.
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Blandford, R. D.
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Bloom, E. D.
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Bonino, R.
•
Bottacini, E.
•
Bregeon, J.
•
Bruel, P.
•
Buehler, R.
•
Caliandro, G. A.
•
Cameron, R. A.
•
Caragiulo, M.
•
•
Cecchi, C.
•
Chekhtman, A.
•
Ciprini, S.
•
Cohen-Tanugi, J.
•
Conrad, J.
•
Costanza, F.
•
•
de Angelis, A.
•
de Palma, F.
•
Desiante, R.
•
Di Mauro, M.
•
Di Venere, L.
•
Domínguez, A.
•
Drell, P. S.
•
Favuzzi, C.
•
Focke, W. B.
•
Franckowiak, A.
•
Fukazawa, Y.
•
Funk, S.
•
Fusco, P.
•
Gargano, F.
•
Gasparrini, D.
•
Giglietto, N.
•
Glanzman, T.
•
Godfrey, G.
•
Guiriec, S.
•
Horan, D.
•
Jóhannesson, G.
•
Katsuragawa, M.
•
Kensei, S.
•
Kuss, M.
•
Larsson, S.
•
Latronico, L.
•
Li, J.
•
Li, L.
•
Longo, F.
•
Loparco, F.
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Lubrano, P.
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Madejski, G. M.
•
Maldera, S.
•
Manfreda, A.
•
Mayer, M.
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Mazziotta, M. N.
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Meyer, M.
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Michelson, P. F.
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Mirabal, N.
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Mizuno, T.
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Monzani, M. E.
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Morselli, A.
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Moskalenko, I. V.
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Murgia, S.
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Negro, M.
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Nuss, E.
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Okada, C.
•
Orlando, E.
•
Ormes, J. F.
•
Paneque, D.
•
Perkins, J. S.
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Pesce-Rollins, M.
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Piron, F.
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Pivato, G.
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Porter, T. A.
•
Rainò, S.
•
Rando, R.
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Razzano, M.
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Reimer, A.
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Sánchez-Conde, M.
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Sgrò, C.
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Simone, D.
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Siskind, E. J.
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Spada, F.
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Spandre, G.
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Spinelli, P.
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Takahashi, H.
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Thayer, J. B.
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Torres, D. F.
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Tosti, G.
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Troja, E.
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Uchiyama, Y.
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Wood, K. S.
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Wood, M.
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Zaharijas, G.
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Zimmer, S.
•
Fermi-LAT Collaboration
Abstract
We report on the search for spectral irregularities induced by oscillations between photons and axionlike-particles (ALPs) in the γ -ray spectrum of NGC 1275, the central galaxy of the Perseus cluster. Using 6 years of Fermi Large Area Telescope data, we find no evidence for ALPs and exclude couplings above 5 ×10-12 GeV-1 for ALP masses 0.5 ≲ma≲5 neV at 95% confidence. The limits are competitive with the sensitivity of planned laboratory experiments, and, together with other bounds, strongly constrain the possibility that ALPs can reduce the γ -ray opacity of the Universe.
Volume
116
Issue
16
Start page
161101
Issn Identifier
0031-9007
Ads BibCode
2016PhRvL.116p1101A
Rights
open.access
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