A survey for millisecond pulsars at Molonglo

Astronomy and Astrophysics – Astronomy

Scientific paper

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Milky Way Galaxy, Neutron Stars, Pulsars, Sky Surveys (Astronomy), Stellar Luminosity, Energy Dissipation, Kinetic Energy, Solar System, Stellar Rotation

Scientific paper

A survey for millisecond pulsars in a zone along the southern galactic plane has been carried out at a frequency of 843 MHz using the Molonglo Observatory Synthesis Telescope. The area covered by the survey was from l = 255° to l = 360°, b = ±1° in about 7000 separate pointings. Sampling was at 0.5 ms intervals, giving nominal sensitivity down to pulsar periods of one millisecond. No millisecond pulsars were found, although some suspects remain under investigation. One new pulsar with a period 106 ms was discovered and parameters are given for this. The survey shows that luminous millisecond pulsars like PSR 1937+21 are not common objects in the disc of our Galaxy.

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