论文标题
光的光圆极化是由轴心样颗粒在Blazars中引起的
Optical circular polarization induced by axionlike particles in blazars
论文作者
论文摘要
我们提出，轴突状颗粒（ALP）与光子之间的相互作用可能是大麻中光圆极化（CP）的可能起源。鉴于在$ \ sim0.1 \％$级别没有明确检测光学CP级别，因此可以获得对Alp-Photon耦合的粗略限制，特别是$ G_ {Aγ} \ CDOT B_ \ CDOT B_ \ MATHRM {T0} GEV}^{ - 1} $对于$ M_ {a} \ Lessim 10^{ - 13}〜\ Mathrm {ev} $，具体取决于Blazar Jet的磁场配置。显然，对于具有较大磁场强度（例如Hadronic辐射模型）的Blazar模型，该约束可能更为严格。我们还对两个Blazar中的光学CP的暂定观测进行了专门的分析，即3C 66a和OJ 287，我们发现这些观察结果可以通过ALP-Photon与$ G_ {Aγ} \ SIM 10^{-11}}}}}〜\ Mathrm {geev}^^$ g_ {aγ} \ sim 10^{-11}}}}^{-11}}}}^$ 1}^$ and。作为前景，我们可以通过进一步研究大麻的辐射模型以及光学CP和线性极化的高精度关节测量来改善我们的分析。
We propose that the interaction between the axionlike particles (ALPs) and photons can be a possible origin of optical circular polarization (CP) in blazars. Given that there is no definite detection of optical CP at $\sim0.1\%$ level, a rough limit on ALP-photon coupling can be obtained, specifically $g_{aγ}\cdot B_\mathrm{T0}\lesssim7.9\times10^{-12}~\mathrm{G\cdot GeV}^{-1}$ for $m_{a}\lesssim 10^{-13}~\mathrm{eV}$, depending on the magnetic field configuration of the blazar jet. Obviously, for the blazar models with a larger magnetic field strength, such as hadronic radiation models, this constraint could be more stringent. We also perform a dedicated analysis of the tentative observations of optical CP in two blazars, namely 3C 66A and OJ 287, and we find that these observations could be explained by the ALP-photon mixing with $g_{aγ} \sim 10^{-11}~\mathrm{GeV}^{-1}$. As an outlook, our analysis can be improved by further research on the radiation models of blazars and high-precision joint measurements of optical CP and linear polarization.
