AAS 207th Meeting, 8-12 January 2006
Session 123 RAVE
Poster, Wednesday, 9:20am-6:30pm, January 11, 2006, Exhibit Hall

Previous   |   Session 123   |   Next  |   Author Index   |   Block Schedule

[123.08] Atmospheric Parameters along the MK Sequence from Analysis of RAVE Spectra of HD Stars

U. Munari, M. Fiorucci (INAF Padova-Asiago), RAVE Collaboration

The Radial Velocity Experiment (RAVE) is an ambitious all-sky spectroscopic survey to measure radial velocities and stellar atmosphere parameters (temperature, metallicity, surface gravity) of up to one million stars using the 6dF multi-object spectrograph on the 1.2-m UK Schmidt Telescope of the Anglo-Australian Observatory (AAO). The basic atmospheric parameters (Teff, gravity, [M/H], [alpha/Fe], Vrot.sin i, micro-turbulence) and radial velocities are derived for some hundred HD stars from high S/N, multi-epoch RAVE spectra, using \chi2 techniques against the synthetic spectral library of Munari et al. (2005). The HD stars are well distributed over the whole HR diagram, and some are in common with the Geneva-Copenhagen survey by Nordstrom et al. (2004). The potential of RAVE spectra for measuring basic stellar parameters is derived and discussed. A detailed comparison is carried out between the atmospheric parameters as derived spectroscopically in the RAVE wavelength range (8400-8800 Å) and as calibrated in literature from combined spectroscopy in the classical blue range (3900-4900 Å) and multi-band photometry. The two temperature and gravity scales are essentially identical. An excellent agreement is also found with the Nordstrom et al. (2004) radial velocities.

If you would like more information about this abstract, please follow the link to http://www.rave-survey.aip.de/rave. This link was provided by the author. When you follow it, you will leave the Web site for this meeting; to return, you should use the Back comand on your browser.

Previous   |   Session 123   |   Next

Bulletin of the American Astronomical Society, 37 #4
© 2005. The American Astronomical Soceity.