We compiled a catalog of Faraday rotation measures （RMs） for 4553 extragalactic radio point sources published in literature. These RMs were derived from multi-frequency polarization observations. The RM data are com...We compiled a catalog of Faraday rotation measures （RMs） for 4553 extragalactic radio point sources published in literature. These RMs were derived from multi-frequency polarization observations. The RM data are compared to those in the NRAO VLA Sky Survey （NVSS） RM catalog. We reveal a systematic uncertainty of about 10.0± 1.5rad m^-2 in the NVSS RM catalog. The Galactic foreground RM is calculated through a weighted averaging method by using the compiled RM catalog together with the NVSS RM catalog, with careful consideration of uncertainties in the RM data. The data from the catalog and the interface for the Galactic foreground RM calculations are publicly available on the webpage： http：//zmtt.bao.ac.cn/RM/.展开更多
基金supported by NAOC135 Grants and the Strategic Priority Research Program"The Emergence of Cosmological Structures" (Grant No.XDB09010200) of the Chinese Academy of Sciences
文摘We compiled a catalog of Faraday rotation measures （RMs） for 4553 extragalactic radio point sources published in literature. These RMs were derived from multi-frequency polarization observations. The RM data are compared to those in the NRAO VLA Sky Survey （NVSS） RM catalog. We reveal a systematic uncertainty of about 10.0± 1.5rad m^-2 in the NVSS RM catalog. The Galactic foreground RM is calculated through a weighted averaging method by using the compiled RM catalog together with the NVSS RM catalog, with careful consideration of uncertainties in the RM data. The data from the catalog and the interface for the Galactic foreground RM calculations are publicly available on the webpage： http：//zmtt.bao.ac.cn/RM/.
