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Radial Velocity Fluctuations of RZ Psc (2014)

Springer

In: Astrophysics

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Publikationsdatum: 2014-11-18

Beschreibung: The behavior of the radial velocity of the UX Ori type star RZ Psc is studied. The existence of an inner cavity with a radius of about 0.7 a.u. in the circumstellar disk of this star allows to suggest the presence of a companion. A study of the radial velocity of RZ Psc based on our own measurements and published data yields no periodic component in its variability. The two most accurate measurements of V r , based on high resolution spectra obtained over a period of three months, show that the radial velocity is constant over this time interval to within 0.5 km/s. This imposes a limit of M p ≤10 M Jup on the mass of the hypothetical companion. Possible reasons for the observed strong fluctuations in the radial velocity of this star are discussed.

Print ISSN: 0571-7256

Digitale ISSN: 1573-8191

Thema: Physik

Publiziert von Springer

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