JPL pulsar timing observations. I - The VELA pulsar

Details JPL pulsar timing observations. I - The VELA pulsar JPL pulsar timing observations. I - The VELA pulsar

Oct 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981apj...249..687d&link_type=abstract

Astrophysical Journal, Part 1, vol. 249, Oct. 15, 1981, p. 687-697.

Astronomy and Astrophysics

Astrophysics

45

Periodic Variations, Pulsars, Pulse Duration, Time Measurement, Astronomical Models, Least Squares Method

Scientific paper

It is found through an analysis of 12 years of arrival time data for PSR 0833-45, by fitting a model of the pulse period to the data in a least-squares sense, that there exist regions of exceptionally stable behavior in which rms residuals are typically about 40 microsec. In addition, each residual exhibits a significant period parameter second derivative which is found to change little within a given interjump era. Parameter changes in the period P, and the derivatives introduced by each of the four large observed jumps in period, are recomputed to demonstrate that the post-jump decay is nearly exponential in form. It is found that random fluctuations in P are an order of magnitude less than the systematic variations caused by the second derivative period parameter, whose component associated with the general slowdown of the pulsar can be reliably measured when the observations span 55 years or more.

Affiliated with

Also associated with

No associations

Rating

JPL pulsar timing observations. I - The VELA pulsar 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 JPL pulsar timing observations. I - The VELA pulsar, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and JPL pulsar timing observations. I - The VELA pulsar will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1468649