منابع مشابه
Neutron Stars and Pulsars: Challenges and Opportunities after 80 Years
Ever since the first pulsar was discovered by Bell and Hewish over 40 years ago,we’ve known that not only are pulsars fascinating and truly exotic objects, but that we can usethem as powerful tools for basic physics and astrophysics as well. Taylor and Hulse hammeredthese views home with their discovery and timing of the spectacular “binary pulsar” in the 1970sand 1980s. In the ...
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The momentum equation in the kinematic wave model is a power-law equation with two parameters. These parameters, which relate the discharge to the flow area, are commonly derived using Manning’s equation. In general, the values of these parameters depend on the flow depth except for some special cross sections. In this paper, improved estimates of the kinematic wave parameters for circular chan...
متن کاملImproved methods for modeling pulse shapes of accreting millisecond pulsars
Raytracing computations for light emitted from the surface of a rapidly rotating neutron star are carried out in order to construct light curves for accreting millisecond pulsars. These calculations are for realistic models of rapidly rotating neutron stars which take into account both the correct exterior metric and the oblate shape of the star. We find that the most important effect, comparin...
متن کاملDetermination of the orbital parameters of binary pulsars
We present a simple method for determination of the orbital parameters of binary pulsars, using data on the pulsar period at multiple observing epochs. This method uses the circular nature of the velocity space orbit of Keplerian motion and produces preliminary values based on two one dimensional searches. Preliminary orbital parameter values are then refined using a computationally efficient l...
متن کاملDetermination of the orbital parameters of binary pulsars
We present a simple novel method for determining the orbital parameters of binary pulsars. This method works with any sort of orbital sampling, no matter how sparse, provided that information on the period derivatives is available with each measurement of the rotational period of the pulsar, and it is applicable to binary systems with nearly circular orbits. We use the technique to precisely es...
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ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 1981
ISSN: 0035-8711,1365-2966
DOI: 10.1093/mnras/195.3.517