摘要
Using a new pulsar timing system at the 25-m radio telescope of Urumqi Astronomical Observatory, we have detected a large glitch in the Crab pulsar which occurred in 2000 July. The size of the glitch is v/v ~ 2.4 ×10-8, with a relative increment in frequency derivative v/v ~ 5 ×10-3. The observing system is introduced and the observed properties of the glitch are discussed.
Using a new pulsar timing system at the 25-m radio telescope of Urumqi Astronomical Observatory, we have detected a large glitch in the Crab pulsar which occurred in 2000 July. The size of the glitch is v/v ~ 2.4 ×10-8, with a relative increment in frequency derivative v/v ~ 5 ×10-3. The observing system is introduced and the observed properties of the glitch are discussed.
基金
National Natural Science Foundation of China under No.10073001
the National Scaling-the-Heights Project on Fundamental Research
