The EXOTIME targets HS0702+6043 and HS0444+0458

Ronny Lutz; Sonja Schuh; Roberto Silvotti

doi:10.1063/1.3570968

The EXOTIME targets HS0702+6043 and HS0444+0458

Solar and Stellar Astrophysics 2015-03-17 v1 Earth and Planetary Astrophysics

Authors: Ronny Lutz , Sonja Schuh , Roberto Silvotti

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Abstract

Pulsations in subdwarf B (sdB) stars are an important tool to constrain the evolutionary status of these evolved objects. Interestingly, the same data used for this asteroseismological approach can also be used to search for substellar companions around these objects by analyzing the timing of the pulsations by means of a so-called O-C diagram. Substellar objects around sdB stars are important for two different reasons: they are suspected to be able to influence the evolution of their host-star and they are an ideal test case to examine the properties of exoplanets which have survived the red giant expansion of their host stars.

Keywords

subdwarf B stars pulsations asteroseismology O-C diagram substellar companions exoplanets

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@article{arxiv.1012.0775,
  title  = {The EXOTIME targets HS0702+6043 and HS0444+0458},
  author = {Ronny Lutz and Sonja Schuh and Roberto Silvotti},
  journal= {arXiv preprint arXiv:1012.0775},
  year   = {2015}
}

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Part of PlanetsbeyondMS/2010 proceedings http://arxiv.org/html/1011.6606v1

The EXOTIME targets HS0702+6043 and HS0444+0458

Abstract

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