Cosmological investigation of multi-frequency VLBI observations of ultra-compact structure in $$z\sim 3$$ z∼3 radio quasars

Abstract In this paper, we use multi-frequency angular size measurements of 58 intermediate-luminosity quasars reaching the redshifts $$z\sim 3$$ z∼3 and demonstrate that they can be used as standard rulers for cosmological inference. Our results indicate that, for the majority of radio-sources in o...

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Bibliographic Details
Main Authors: Shuo Cao, Marek Biesiada, Jingzhao Qi, Yu Pan, Xiaogang Zheng, Tengpeng Xu, Xuan Ji, Zong-Hong Zhu
Format: Article
Language:English
Published: SpringerOpen 2018-09-01
Series:European Physical Journal C: Particles and Fields
Online Access:http://link.springer.com/article/10.1140/epjc/s10052-018-6197-y