Radio Variability of the LMC Pulsar J0529-6652

We have studied the unusual variability in the pulsed radio emisssion from the Large Magellanic Cloud pulsar PSR J0529-6652 using observations at 1400 MHz with the Parkes radio telescope. PSR J0529-6652 has a very large modulation index at (4.07 +/- 0.29) and a measured nulling fraction of about 80%. This pulsar is also the second giant pulse emitter currently known in the LMC (after PSR B0540-69).

Details of the study can be found in the article "Variability of the Pulsed Radio Emission from the Large Magellanic Cloud Pulsar PSR J0529-6652" by F. Crawford et al., Astrophysical Journal, 762, 97 (2013).

Project Participants

  • Fronefield Crawford (F&M)
  • Dean Altemose (F&M '09)
  • Hannan Li (F&M '13)
  • Duncan Lorimer (WVU)

    Below: Pulse number vs. phase for PSR J0529-6652.

    Below: Single pulse detections of PSR J0529-6652 at 1400 MHz. S/N is plotted in grayscale vs. DM (on the vertical axis) and time (on the horizontal axis).

    Below: Waterfall plots of detected single pulses from PSR J0529-6652 with HEIMDALL and FETCH. 

    cand tstart 54496.299120370371 tcand 9077.3100000 dm 104.62800 snr 9.49577.h5  0.9998229 1.0 
cand tstart 54496.299120370371 tcand 8841.1800000 dm 106.62000 snr 11.11070.h5 0.9979601 1.0  
cand tstart 54496.299120370371 tcand 15978.700000 dm 98.67250   snr 9.73325.h5  0.9979225 1.0  
cand tstart 54496.299120370371 tcand 7842.0300000 dm 100.65400 snr 11.99450.h5 0.99783176 1.0
cand tstart 54496.299120370371 tcand 7710.3000000 dm 104.62800 snr 10.34200.h5 0.9977374 1.0  
cand tstart 54496.299120370371 tcand 8185.4800000 dm 102.63900 snr 9.80819.h5  0.98778385 1.0  
cand tstart 54496.299120370371 tcand 7582.4800000 dm 110.61400 snr 9.74808.h5  0.9828303 1.0  
cand tstart 54496.299120370371 tcand 7812.7600000 dm 100.65400 snr 9.09902.h5  0.9815259 1.0  
cand tstart 54496.299120370371 tcand 8810.9300000 dm 106.62000 snr 11.53200.h5 0.96930814 1.0
cand tstart 54496.299120370371 tcand 14714.100000 dm 110.61400 snr 9.86214.h5  0.91212666 1.0
cand tstart 54496.299120370371 tcand 7497.5900000 dm 114.62300 snr 10.30410.h5 0.8927036 1.0  
cand tstart 54496.299120370371 tcand 7580.5300000 dm 114.62300 snr 11.48030.h5 0.8483024 1.0  
cand tstart 54496.299120370371 tcand 14297.500000 dm 102.63900 snr 10.92230.h5 0.7640703 1.0
cand tstart 54496.299120370371 tcand 14706.300000 dm 104.62800 snr 9.56697.h5  0.7015267 1.0