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The earth's gravitational field produces a 'twisting force' perpendicular to the angular momentum of a spinning mass (such as a spinning top) that causes the mass to 'wobble' around the gravitational field axis in a phenomenon called precession. Similarly, the magnetic moment (μ) of a spinning nucleus precesses due to an external magnetic field directed along the z-axis. The precession of the magnetic moment vector about the magnetic field is called Larmor precession,...
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When protons A and X are coupled, their nuclear spin energy levels are slightly modified. This is because the energy required to excite proton A to a spin state parallel to proton X is slightly different from the energy required for it to become anti-parallel to spin X. Consequently, there are two possible excitation frequencies for A (A1 and A2), depending on the spin state of X, and vice versa. The mutual nature of coupling implies that the difference between frequencies A1 and A2, indicated...
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Generation and Coherent Control of Pulsed Quantum Frequency Combs
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Binary and Millisecond Pulsars.

D R Lorimer1

  • 1Max Planck Institut für Radioastronomie, Auf dem Hügel 69, D-53121 Bonn, Germany.

Living Reviews in Relativity
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Summary
This summary is machine-generated.

Large-area surveys have significantly advanced our understanding of binary and millisecond pulsars, revealing their potential as precise celestial clocks for relativistic astrophysics. This review summarizes their properties and applications.

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Area of Science:

  • Astronomy and Astrophysics
  • Relativistic Astrophysics

Background:

  • Recent advancements in large-area surveys have expanded the known population of binary and millisecond pulsars in the Galactic disk to approximately 50.
  • These pulsars are not only significant astronomical sources but also function as exceptional celestial clocks.

Purpose of the Study:

  • To review the primary characteristics of binary and millisecond pulsars.
  • To highlight the applications of these pulsars in the field of relativistic astrophysics.

Main Methods:

  • Review of existing literature and survey data.
  • Analysis of pulsar properties and observational data.

Main Results:

  • Significant increase in the number of known binary and millisecond pulsars.
  • Identification of pulsars as valuable tools for relativistic astrophysics.

Conclusions:

  • Binary and millisecond pulsars are crucial for advancing our understanding of fundamental physics.
  • Their precise timing properties offer unique opportunities for testing theories of gravity and cosmology.