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The Arecibo 430 MHz Intermediate Galactic Latitude Survey: Discovery of Nine Radio Pulsars

Navarro, J. and Anderson, S. B. and Freire, P. C. (2003) The Arecibo 430 MHz Intermediate Galactic Latitude Survey: Discovery of Nine Radio Pulsars. Astrophysical Journal, 594 (2). pp. 943-951. ISSN 0004-637X. https://resolver.caltech.edu/CaltechAUTHORS:20170408-164343987

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Abstract

We have used the Arecibo Radio Telescope to search for millisecond pulsars in two intermediate Galactic latitude regions (7° < |b| < 20°) accessible to this telescope. For these latitudes the useful millisecond pulsar search volume achieved by Arecibo's 430 MHz beam is predicted to be maximal. Searching a total of 130 deg2, we have discovered nine new pulsars and detected four previously known objects. We compare the results of this survey with those of other 430 MHz surveys carried out at Arecibo and an intermediate-latitude survey made at Parkes that included part of our search area; the latter independently found two of the nine pulsars we have discovered. At least six of our discoveries are isolated pulsars with ages between 5 and 300 Myr; one of these, PSR J1819+1305, exhibits very marked and periodic nulling. We have also found a recycled pulsar, PSR J2016+1948. With a rotational period of 65 ms, this is a member of a binary system with a 635 day orbital period. We discuss some of the properties of this system in detail and indicate its potential to provide a test of the strong equivalence principle. This pulsar and PSR J0407+16, a similar system now being timed at Arecibo, are by far the best systems known for such a test.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1086/377153DOIArticle
https://arxiv.org/abs/astro-ph/0306432arXivDiscussion Paper
Additional Information:© 2003. The American Astronomical Society. Received 2003 March 14; accepted 2003 May 23. The Arecibo Observatory, a facility of the National Astronomy and Ionosphere Center, is operated by Cornell University under a cooperative agreement with the National Science Foundation. The Los Alamos National Laboratory (LANL) is operated by the University of California for the National Nuclear Security Administration. We wish to thank Jon Middleditch (LANL) for his hospitality and for making some of LANL's computer resources available to us; Will Deich (formerly Caltech, now Lick Observatory) for allowing us to use some of his software; Alex Wolszczan for making the PSPM, the instrument used to time the pulsars mentioned in this paper, freely available for use at the Arecibo Observatory; Duncan Lorimer, for comments and ideas that greatly improved the quality of this work and for making his pulsar processing software publicly available; and Chris Salter and Avinash Deshpande for comments that improved the quality of the manuscript. Avinash Deshpande also helped with the preliminary analysis of the PSR J1819+1305 data.
Subject Keywords:binaries: general; pulsars: general; pulsars: individual (PSR J2016+1948) ; radio continuum: stars; stars: neutron; surveys
Issue or Number:2
Record Number:CaltechAUTHORS:20170408-164343987
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20170408-164343987
Official Citation:J. Navarro et al 2003 ApJ 594 943
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:76240
Collection:CaltechAUTHORS
Deposited By: 1Science Import
Deposited On:09 Mar 2018 00:06
Last Modified:03 Oct 2019 16:59

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