Planets around active stars

J. Setiawan; P. Weise; Th. Henning; A. P. Hatzes; L. Pasquini; L. da Silva; L. Girardi; O. von der Luhe; M. P. Dollinger; A. Weiss; K. Biazzo

doi:10.1007/978-3-540-75485-5_43

arXiv · 0704.2145

Planets around active stars

J. Setiawan·P. Weise·Th. Henning·A. P. Hatzes·L. Pasquini·L. da Silva·L. Girardi·O. von der Luhe·M. P. Dollinger·A. Weiss·K. Biazzo

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Abstract

We present the results of radial velocity measurements of two samples of active stars. The first sample contains field G and K giants across the Red Giant Branch, whereas the second sample consists of nearby young stars (d < 150 pc) with ages between 10 - 300 Myrs. The radial velocity monitoring program has been carried out with FEROS at 1.52 m ESO telescope (1999 - 2002) and continued since 2003 at 2.2 m MPG/ESO telescope. We observed stellar radial velocity variations which originate either from the stellar activity or the presence of stellar/substellar companions. By means of a bisector technique we are able to distinguish the sources of the radial velocity variation. Among them we found few candidates of planetary companions, both of young stars and G-K giants sample.

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J. Setiawan, P. Weise, Th. Henning, A. P. Hatzes, L. Pasquini, L. da Silva, L. Girardi, O. von der Luhe, M. P. Dollinger, A. Weiss, K. Biazzo. 2007-04-17. Planets around active stars. https://doi.org/10.1007/978-3-540-75485-5_43

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