The PSU/TCfA Search for Planets Around Evolved Stars: Bisector Analysis of Activity of a Sample of Red Giants

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dc.creatorNowak, Grzegorz
dc.creatorNiedzielski, Andrzej
dc.date2007-12-14
dc.date.accessioned2026-07-07T08:49:15Z
dc.date.available2026-07-07T08:49:15Z
dc.descriptionSearches for planets around evolved G-K subgiant and giant stars are essential for developing general understanding of planet formation and evolution of the planetary systems. Precise radial velocity (RV) measurements of giants have lead to the discovery of ten planets around such star. However, the long period radial velocity variations of red giants may also have other than planetary nature. Non-radial oscillations or rotational modulation due to starspots can also induce RV variations, thereby mimicking the gravitational influence of low-mass companions. In this work we present bisector analysis of five carefully selected lines for two stars from our survey.
dc.description2 pages, to appear in "Extreme Solar Systems", 2007 ASP Conference Series, eds. Debra Fischer, Fred Rasio, Steve Thorsett and Alex Wolszczan
dc.identifierhttps://arxiv.org/abs/0712.2285
dc.identifierhttp://arxiv.org/abs/0712.2285
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/144235
dc.subjectAstrophysics
dc.titleThe PSU/TCfA Search for Planets Around Evolved Stars: Bisector Analysis of Activity of a Sample of Red Giants
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