منابع مشابه
Timing the Parkes Multibeam Pulsars
Measurement of accurate positions, pulse periods and period derivatives is an essential follow-up to any pulsar survey. The procedures being used to obtain timing parameters for the pulsars discovered in the Parkes multibeam pulsar survey are described. Completed solutions have been obtained so far for about 80 pulsars. They show that the survey is preferentially finding pulsars with higher tha...
متن کاملDevelopments in Wideband Timing of Millisecond Pulsars
Pulsar timing is an extremely powerful technique in the field of observational astronomy, particularly when applied to millisecond pulsars (MSPs). In effect, MSPs act as precise laboratory clocks with which one can make precise physical measurements via pulsar timing. However, the recent development of wideband, low-frequency receiver systems that allow simultaneous observation of much of the r...
متن کاملTiming the millisecond pulsars in 47 Tucanae
In the last ten years 20 millisecond pulsars have been discovered in the globular cluster 47 Tucanae. Hitherto, only three of these pulsars had published timing solutions. Here we improve upon these three and present 12 new solutions. These measurements can be used to determine a variety of physical properties of the pulsars and of the cluster. The 15 pulsars have positions determined with typi...
متن کاملTiming Measurements and Their Implications for Four Binary Millisecond Pulsars
We present timing observations of four millisecond pulsars, using data obtained over three years at the ATNF Parkes and NRAL Jodrell Bank radio telescopes. Astrometric, spin, and binary parameters are updated, and substantially improved for three pulsars, PSRs J0613−0200, J1045−4509 and J1643−1224. We have measured the time variation of the projected semi-major axis of the PSR J0437−4715 orbit ...
متن کاملA timing formula for main-sequence star binary pulsars
In binary radio pulsars with a main-sequence star companion, the spin-induced quadrupole moment of the companion gives rise to a precession of the binary orbit. As a first approximation one can model the secular evolution caused by this classical spin-orbit coupling by linear-in-time changes of the longitude of periastron and the projected semi-major axis of the pulsar orbit. This simple repres...
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ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 1993
ISSN: 0035-8711,1365-2966
DOI: 10.1093/mnras/262.2.449