Quasar polarization with ultralight (pseudo-)scalars

Pramana

Chang Sub Shin1¹  Subhayan Mandal1 3¹  Ki-Young choi1¹ 

[1] Asia Pacific Center for Theoretical Physics, Pohang, Gyeongbuk 790-784, Republic of Korea$$

关键词: Americium;    transmutation;    lead-cooled;    fuel cycle;    reactivity.;   

DOI  :  

学科分类：物理（综合）

来源: Indian Academy of Sciences

【 摘 要 】

Recently, it was shown that the absence of circular polarization of visible light from quasars severely constrains the interpretation of axion-like particles (ALPs) as a solution for the generation of linear polarization. Furthermore, the new observation of linear polarization in radio wavelength from quasars, similar to the earlier observation performed in the optical bands, makes the ALPs scenario inconsistent with at least one of the two observations. In this study, we extend this scenario by including more scalars. We find that the effects from scalar and pseudoscalar neutralize each other, thereby suppressing the circular polarization, while preserving consistent linear polarization, as observed in both the visible and radio wave bands.

【 授权许可】

Unknown