Constraints on massive axion-like particles from X-ray observations of NGC 1275
Constraints on massive axion-like particles from X-ray observations of NGC 1275
复制标题
NGC 1275 X 射线观测对大质量轴子状粒子的约束
DOI:
10.1093/mnras/sty1591
复制
发表时间:
2017
影响因子:
4.8
通讯作者:
J. Conlon
中科院分区:
文献类型:
--
作者:
Linhan Chen;J. Conlon
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.
影响因子:
4.4
作者:
Day F
通讯作者:
Day F