Arecibo and the ALFA pulsar survey

作者：van Leeuwen J^*; Cordes J M; Lorimer D R; Freire P C C; Camilo F; Stairs I H; Nice D J; Champion D J; Ramachandran R; Faulkner A J; Lyne A G; Ransom S M; Arzoumanian Z; Manchester R N; McLaughlin M A; Hessels J W T; Vlemmings W; Deshpande A A; Bhat N D R; Chatterjee S; Han J L; Gaensler B M; Kasian L; Deneva J S; Reid B; Lazio T J W; Kaspi V M; Crawford F; Lommen A N; Backer D C; Kramer M; Stappers B W

来源：Chinese Journal of Astronomy and Astrophysics, 2006, 6: 311-318.

• pulsars : general
• pulsars : individual (PSR J1906+0746)
• surveys

The recently started Arecibo L-band Feed Array (ALFA) pulsar survey aims to find similar to 1000 new pulsars. Due to its high time and frequency resolution the survey is especially sensitive to millisecond pulsars, which have the potential to test gravitational theories, detect gravitational waves and probe the neutron-star equation of state. Here we report the results of our preliminary analysis: in the first months we have discovered 21 new pulsars. One of these, PSR J 1906+0746, is a young 144-ms pulsar in a highly relativistic 3.98-hr low-eccentricity orbit. The 2.61 +/- 0.02 M-circle dot system is expected to coalesce in similar to 300 Myr and contributes significantly to the computed cosmic inspiral rate of compact binary systems.

• 出版日期2006