Trompe L'Oeil 'binary' pulsars

Details Trompe L'Oeil 'binary' pulsars Trompe L'Oeil 'binary' pulsars

Jan 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990apj...348..226n&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 348, Jan. 1, 1990, p. 226-231.

Statistics

Computation

31

Binary Stars, Globular Clusters, Pulsars, Pulse Duration, Supernova Remnants, Supernova 1987A, Computational Astrophysics, Neutron Stars, Stellar Motions, Stellar Orbits, Stellar Rotation

Scientific paper

A freely precessing pulsar produces pulse phase residuals which can mimic those of a pulsar in a binary orbit. In particular, discrete sets of phase residuals due to precessional motion of an isolated pulsar are sampled; it is shown that this data is well fit by residuals from a binary pulsar in a sufficiently tight orbit. Analytic and numerical relationships between the projected orbital size, a(p) sin i, and the orbital eccentricity, e, of a misidentified binary pulsar; are found the observations that would distinguish between these models are discussed. Regardless of the mechanism that causes the precession, the maximum amplitude of the phase residual is pi/2: consequently, a(p)sin i is (approximately) bounded by cP(puls)/4. The newly discovered 'binary' millisecond pulsars in the globular cluster 47 Tuc is discussed, and it is shown that the periodic frequency modulation reported cannot be explained by free precession.

Affiliated with

Also associated with

No associations

Rating

Trompe L'Oeil 'binary' pulsars does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Trompe L'Oeil 'binary' pulsars, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Trompe L'Oeil 'binary' pulsars will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1560445