A metal-biased planet search

Jenkins, J.S., Jones, H.R.A., Barnes, J.R., Pavlenko, Y., Rojo, P., Jones, M.I., Day-Jones, A.C. and Pinfield, D.J. (2009) A metal-biased planet search. In: AIP Conference Proceedings Volume 1094 - Proceedings of the 15th Cambridge Workshop on Cool Stars, Stellar Systems and the Sun :. American Institute of Physics (AIP), pp. 449-452. ISBN 978-0-7354-0627-8
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We have begun a metal-rich planet search project using the HARPS instrument in La Silla, Chile to target planets with a high potential to transit their host star and add to the number of bright benchmark transiting planets. The sample currently consists of 100, bright (7.5V9.5) solar-type stars (0.5B−V0.9) in the southern hemisphere which are both inactive (log RHK−4.5) and metal-rich ([Fe/H]0.1 dex). We determined the chromospheric activity and metallicity status of our sample using high resolution FEROS spectra. We also introduce the first result from our HARPS planet search and show that the radial-velocity amplitude of this star is consistent with an orbiting planetary-mass companion (i.e. M sin i<0.5 MJ) with a period of ~5 days. We are currently engaged in follow-up to confirm this signal as a bonafide orbiting planet.
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Additional information Copyright (2009) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article [ Jenkins, J.S., Jones, H.R.A., Barnes, J.R., Pavlenko, Y., Rojo, P., Jones, M.I., Day-Jones, A.C. and Pinfield, D.J. (2009) ' A metal-biased planet search.' ] appeared in AIP Conference Proceedings Volume 1094 - Proceedings of the 15th Cambridge Workshop on Cool Stars, Stellar Systems and the Sun pp.449-452 and may be found at: http://proceedings.aip.org/dbt/dbt.jsp?KEY=APCPCS&amp;Volume=1094&amp;Issue=1 DOI: 10.1063/1.3099144
Date Deposited 15 May 2025 16:20
Last Modified 30 May 2025 23:09

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