High resolution spectroscopy of halo stars within the spectral region 3550-5000 °A°A

Details High resolution spectroscopy of halo stars within the spectral region 3550-5000 °A°A High resolution spectroscopy of halo stars within the spectral region 3550-5000 °A°A

Jul 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007uasb.conf..161k&link_type=abstract

UV Astronomy: Stars from Birth to Death. Proceedings of the Joint Discussion n.4 during the IAU general Assembly of 2006. Ana I.

Astronomy and Astrophysics

Astronomy

Ground-Based Uv And Blue Astronomy, High Resolution Spectroscopy, Metalpoor Stars, Chemical Composition, Spectral Atlas

Scientific paper

High resolution echelle spectroscopy in ground-based UV is a powerful facility for study of chemical evolution of early Galaxy. An atlas of high resolution (R=60000) in the poor studied wavelength range 3550-5000°A °A for 4 metal-deficient stars in the interval of metallicity -3.0 < [Fe/H] < -0.6, effective temperature 4750 < Teff < 5900K, surface gravity 1.6 < lg g < 5.0 is produced. Details of the method of producing a spectral atlas, line identifications, stellar atmospheric parameters determination are described. Based on these spectral data, we determined model atmosphere parameters and calculated abundances of 25 chemical elements.

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