SIMBAD references

2002ApJ...567..510H - Astrophys. J., 567, 510-514 (2002/March-1)

Hot spot emission from a freely precessing neutron star.


Abstract (from CDS):

Recent observations of 1E 161348-5055, the neutron star candidate at the center of the supernova remnant RCW 103, show that a component of its emission varies sinusoidally with a period of approximately 6 hours. We argue that this period is what one would expect for a freely precessing neutron star with a spin period of about 1 s. We produce light curves for a freely precessing neutron star with a hot spot. By a suitable choice of parameters, we obtain light curves which are constant with rotational phase when the flux from the star reaches a maximum. At other phases of the precession, the flux varies as the star rotates, but the total flux decreases by a factor of several. These models can explain the behavior observed from 1E 161348-5055 and predict that the spin period should be detectable at minimum flux from sufficiently sensitive measurements.:

Abstract Copyright:

Journal keyword(s): Stars: Neutron - Stars: Oscillations - X-Rays: Stars

Simbad objects: 5

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