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PALFA is a large-scale survey for radio pulsars using the Arecibo 305-meter telescope and the ALFA multibeam receivers. == Introduction == The ongoing Arecibo L-band Feed Array 1.4 GHz Survey for radio pulsars (PALFA) is the largest and most sensitive survey of the Galactic plane to date. The survey is targeting low Galactic latitudes (|b|≤5°) in the Galactic longitude ranges accessible by the Arecibo telescope (32°<''l''<77°) and 168°<''l''<214°). Upon completion, it is expected to find hundreds of new pulsars. Highlights from the survey include the discoveries of the second most relativistic binary pulsar known, PSR J1906+0746, and the first eccentric binary millisecond pulsar in the Galactic plane, PSR J1903+0327 In addition, PALFA has produced the first pulsar discovery by volunteer computing, PSR J2007+2722, through the Einstein@Home distributed computing project. As of February 2013, PALFA has discovered a total of 113 previously unknown pulsars. These include all known varieties of rotation-powered neutron stars: millisecond pulsars, relativistic binaries, mildly recycled,〔 normal, and energetic young pulsars. Eight of the ALFA objects have been identified through their intermittent single pulses and are likely rotating radio transients (RRATs). The rest have been discovered via blind periodicity searches. Follow-up radio timing observations are carried out through a coordinated effort between Arecibo, Jodrell Bank, Greenbank, and Nançay to obtain phase-connected timing solutions for these pulsars. The only fast radio burst to be discovered by a telescope other than the Parkes radio telescope was identified in a PALFA pointing in the Galactic anti-center. The PALFA survey is carried out by an international consortium of scientists from the United States, Canada, Germany, Netherlands, United Kingdom, Australia, and France. The Principal Investigator of the PALFA survey is Prof. Victoria Kaspi of McGill University. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「PALFA Survey」の詳細全文を読む スポンサード リンク
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