Nulling Behavior in the LMC Pulsar J0529-6652

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Stellar, Mag Clouds, Extragalactic, Parkes

Scientific paper

It has been known since shortly after the discovery of pulsars that some pulsars exhibit nulling behavior, in which the pulsed emission abruptly shuts off for a number of periods. With the recent discovery of the class of rotating radio transients and other transient phenomena, the study of nullers has gained new interest, and questions remain about how these various phenomena relate to each other, if at all. We have discovered that the LMC pulsar PSR J0529-6652 (B0529-66) shows signs of nulling behavior. This pulsar has been known for almost 25 years, but to our knowledge nobody has noticed its nulling behavior before. Apart from this, it is also one of the most luminous pulsars known (in the top 2% of the known radio pulsar population). We propose new observations of PSR J0529-6652 using both the 20 cm multibeam receiver and the 10/50 cm receiver to study its nulling behavior. These observations will allow us to study in detail the pulse behavior on short time scales. We request three separate 4-hr tracks with the 20 cm multibeam receiver and two separate 4-hr tracks with the 10/50 cm receiver, totaling 20 hr of time.

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