2018MNRAS.479.2243C

Query : 2018MNRAS.479.2243C

2018MNRAS.479.2243C - Mon. Not. R. Astron. Soc., 479, 2243-2248 (2018/September-2)

Constraints on massive axion-like particles from X-ray observations of NGC 1275.

CHEN L. and CONLON J.P.

Abstract (from CDS):

If axion-like particles (ALPs) exist, photons can convert to ALPs on passage through regions containing magnetic fields. The magnetized 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, NGC 1275, to place bounds on massive ALPs up to m_ a_ ∼10–11 eV, extending previous work that used this data set to constrain massless ALPs.

Abstract Copyright: © 2018 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): galaxies: active - galaxies: individual: NGC 1275 - galaxies: nuclei

Simbad objects: 5

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Number of rows : 5
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 ACO 426 ClG 03 19 47.6 +41 30 54           ~ 2508 1
2 NGC 1275 Bla 03 19 48.1599902040 +41 30 42.108850836   13.10 12.48 11.09   ~ 4243 3
3 ACO 780 ClG 09 18 30 -12 15.7           ~ 469 0
4 NAME Virgo Cluster ClG 12 30 47.8 +12 23 07           ~ 7107 0
5 M 87 AGN 12 30 49.42338414 +12 23 28.0436859 10.16 9.59 8.63   7.49 ~ 7815 3

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