Velocity Monitoring of Sequence-E Red Giants

Details Velocity Monitoring of Sequence-E Red Giants Velocity Monitoring of Sequence-E Red Giants

Dec 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005aas...207.1311a&link_type=abstract

American Astronomical Society Meeting 207, #13.11; Bulletin of the American Astronomical Society, Vol. 37, p.1174

Astronomy and Astrophysics

Astronomy

Scientific paper

We are currently monitoring radial velocities of LMC red giants from sequence D and E of Wood et al. (1999). The spectra are being obtained with the FLAMES/GIRAFFE instrument on the VLT. Here, some preliminary velocity curves for several sequence E stars are presented. Originally thought to be contact binaries, the stars appear to be Roche lobe filling red giants in binary systems. Preliminary light curve modelling suggests very low masses for the red giants, which may be post-common envelope objects.

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