Testing the Hypothesis about the Existence of a Planet Orbiting the Pulsar B0329+54 (J0332+5434)

We have analyzed the results of our observations of the millisecond pulsar B0329+54 (J0332+5434), which exhibits quasi-periodic variations in the barycentric times of arrival (TOAs) of pulses on long time scales. We have tested the hypothesis about the existence of a planet with a mass close to the...

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Bibliographic Details
Published in:	Astronomy letters 2023-10, Vol.49 (10), p.547-552
Main Authors:	Potapov, V. A., Andrianov, S. A.
Format:	Article
Language:	eng
Subjects:	Astronomy Astrophysics and Astroparticles Hypotheses Millisecond pulsars Observations and Techniques Orbits Periodic variations Physics Physics and Astronomy Planets Pulsars Terrestrial planets
Online Access:	Get full text
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Summary:	We have analyzed the results of our observations of the millisecond pulsar B0329+54 (J0332+5434), which exhibits quasi-periodic variations in the barycentric times of arrival (TOAs) of pulses on long time scales. We have tested the hypothesis about the existence of a planet with a mass close to the mass of the terrestrial planets and an orbital period of 27.8 yr around this pulsar that was proposed previously to explain the variations in its TOAs. We show that this hypothesis is not confirmed when considering the series of TOA residuals over the entire available time interval of observations 1968–2022 and that the TOA variations for this pulsar apparently have a different physical cause.
ISSN:	1063-7737 1562-6873