μ Herculis: Analysis of EW time series of a solar-type pulsator

Details μ Herculis: Analysis of EW time series of a solar-type pulsator μ Herculis: Analysis of EW time series of a solar-type pulsator

Mar 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009coast.159...19c&link_type=abstract

"Communications in Asteroseismology, Vol. 159, p. 19-20. Proceedings of "JENAM 2008 Symposium No 4: Asteroseismology and Stellar

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Scientific paper

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_α and other lines.

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