The detection of the recent glitch in the Vela pulsar by Fermi-LAT
ATel #16619; Huihui Wang (SYSU), Jumpei Takata (HUST), Lupin C.-C. Lin (NCKU), Albert Kong (NTHU), Chin-Ping Hu (NCUE), David Hui (CNU), Kwan-Lok Li (NCKU)
on 9 May 2024; 10:45 UT
Credential Certification: Albert Kong (akong@phys.nthu.edu.tw)
Subjects: Gamma Ray, Neutron Star, Pulsar
A new glitch of Vela pulsar (ATel #16608) was recently confirmed by the 26 m radio telescope at Mt Pleasant run by the University of Tasmania (ATel#16615) with a dF0/F0 of 2.40976e-06 +/- 4.88083e-10 and a glitch epoch of MJD 60429.869615 +/- 3.84691e-05. We report the confirmation of the glitch with data taken by the Fermi Large Area Telescope (Fermi LAT) operating in an all-sky scanning mode. Timing analysis from TEMPO2 Fermi plugin in the 0.1-1 GeV energy band indicates that the amplitude of the spin frequency jump is 2.9119094(7)e-5Hz with the glitch epoch at the center of earth fixed at MJD 60429.86961 (ATel #16615). There is no clear evidence for changes in the pulse profile or additional transient features in the pulse timing.
TOAs near the glitch
Pulse profile of Vela
