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Published October 20, 1996 | Published
Journal Article Open

A Survey for Millisecond Pulsars


We have searched 960 square degrees of sky for radio pulsars, using the 305 m telescope at Arecibo, Puerto Rico. The 430 MHz survey reached a limiting sensitivity for slow pulsars of 0.7 mJy using a dual-polarization, 32 channel filter bank over 8 MHz of bandwidth. We have detected one new millisecond pulsar, 11 new slow pulsars, one previously known millisecond pulsar, and eight previously known slow pulsars. The new millisecond pulsar, PSR J2033 +17, with a period of 5.9 ms, has been found to be in a binary system. The Keplerian circular orbital solution has a period of 56.2 days and a semimajor axis of 20.7 lt-s. One of the slow pulsars, PSR J2043+2740, is the second fastest pulsar that is not either recycled or associated with a supernova remnant. It is near the Cygnus Loop remnant, but timing measurements imply a pulsar characteristic age of 1.2 Myr, which makes an association unlikely.

Additional Information

© 1996 American Astronomical Society. Provided by the NASA Astrophysics Data System. Received 1996 January 30; accepted 1996 May 15. We would like to thank the staff of the Arecibo Observatory for help in performing the observations. The Arecibo Observatory is part of the National Astronomy and Ionosphere Center, which is operated by Cornell University under cooperative agreement with the National Science Foundation. This research was supported in part by NSF grant AST-9020787. Research in Precision Pulsar Astrophysics at the Naval Research Laboratory is supported by the Office of Naval Research.

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