Ref: ASTROimport-1006

HERMES survey of binarity in evolved stars

Gorlova, N. ; van Winckel, H. ; Jorissen, A. ; van Eck, S. ; Dermine, T. ; Exter, K. ; Østensen, R. H. ; van de Steene, G.

published in Asymmetric Planetary Nebulae 5 Conference (2011)

Abstract: We report on our radial velocity monitoring project of a wide range of evolved stars where binarity was proposed to explain some of their peculiarities. Our spectrograph HERMES is a new optical echelle spectrograph mounted on the 1.2m Mercator telescope on La Palma, built by a consortium of Belgian Institutes (KULeuven, ULB, Royal Observatory) with contributions from the Geneva Observatory and Landessternwarte Tautenburg. By combining high S/N single observations with low S/N time-series, we aim at quantifying the orbital and chemical characteristics of every distinct subgroup. The final goal is to gain insight in the diverse binary interaction processes relevant at late stages of stellar evolution. We discuss our project, the unique capabilities of HERMES, and present the first results of our program.

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The record appears in these collections:
Royal Observatory of Belgium > Astronomy & Astrophysics
Science Articles > Non-refereed Articles

 Record created 2016-07-01, last modified 2016-07-01