Spectroscopic investigation of selected λ Boo – type stars

Joanna Molenda-Żakowicz, Richard O. Gray, Christopher J. Corbally, Simon J. Murphy, Drew Chojnowski, Sten Hasselquist, Ewa Niemczura, Ernst Paunzen and Chris Koen

We present the first results of our programme of high-resolution, high signal-to-noise spectroscopic observations of selected λ Boo stars. Observations acquired in the framework of this project will be used to derive the relative abundances of chemical elements on the surface of the star. This information then will be used in detailed asteroseismic analysis aiming to answer the long-standing question whether the λ Boo stars are peculiar only on the surface or throughout the whole star. This research may also help us to address larger problems of star formation and evolution, and gain insights into planet formation and planet – debris disk interaction.

Proceedings of the Polish Astronomical Society, vol. 7, 201-203 (2018)

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