Colloquium on Mar. 21th, 2019

Probing the solar system using pulsar timing array

Speaker: Kejia Lee (PKU-KIAA)

Venue: Gewu 4410

Time: 3:00 PM, Thursday, 21th March, 2019

Abstract: Pulsar-timing analyses are sensitive to errors in the solar-system ephemerides (SSEs) that timing models utilise to estimate the location of the solar-system barycentre, the quasi-inertial reference frame to which all recorded pulse times-of-arrival are referred. Any error in the SSE will affect all pulsars, therefore pulsar timing arrays (PTAs) are a suitable tool to search for such errors and impose independent constraints on relevant physical parameters. In this talk, we will report the current progress of studying solar system dynamics using pulsar timing array.