SIMBAD references

The G5 subgiant star µ∼Herculis was observed in June 2006 by means of the high-resolution spectrograph SARG operating at the 3.6 m Italian telescope TNG (Telescopio Nazionale Galileo) at the Canary Islands, exploiting the iodine cell technique. A time series of about 1200 spectra was acquired during 7 observing nights. Data analysis of the radial velocity time series (Bonanno et al. 2008) has shown a significant power excess centred at 1.2 mHz, with ∼0.9 ms^{-1} peak amplitude. Here we present an analysis of the Equivalent Width time series of H_αand other lines.