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Bisectors of the HARPS cross-correlation function: The dependence on stellar atmospheric parameters

Basturk, O; Dall, T H; Collet, Remo; Lo Curto, G; Selam, S O

Description

Context. Bisectors of the HARPS cross-correlation function (CCF) can discern between planetary radial-velocity (RV) signals and spurious RV signals from stellar magnetic activity variations. However, little is known about the effects of the stellar atmosphere on CCF bisectors or how these effects vary with spectral type and luminosity class. Aims. Here we investigate the variations in the shapes of HARPS CCF bisectors across the HR diagram in order to relate these to the basic stellar...[Show more]

CollectionsANU Research Publications
Date published: 2011
Type: Journal article
URI: http://hdl.handle.net/1885/78908
Source: Astronomy and Astrophysics
DOI: 10.1051/0004-6361/201117740

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