UV Observations of OH, NH & CH Lines Using HDS on Subaru Telescope

Details UV Observations of OH, NH & CH Lines Using HDS on Subaru Telescope UV Observations of OH, NH & CH Lines Using HDS on Subaru Telescope

Dec 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001aas...19913711s&link_type=abstract

American Astronomical Society, 199th AAS Meeting, #137.11; Bulletin of the American Astronomical Society, Vol. 33, p.1513

Astronomy and Astrophysics

Astronomy

Scientific paper

High dispersion spectroscopy in the near-ultraviolet using a large ground-based telescope offers a means of directly intercomparing relative abundances of the CNO elements in F, G and K-type stars over a wide range of luminosity and metallicity. Preliminary results are presented for a sequence of moderate to very metal-poor G and K-type stars observed in the wavelength range of 3080-4750 A using the High Dispersion Spectrograph (HDS) on Subaru Telescope in a study of the relative abundances of CNO-cycle elements for the carbon-peculiar subgiants first reported in Koktay & Garrison (2000). The OH lines at 3085-3150 A, NH at 3360 A and CH lines at 4300 A are detected with a S/N >100, >200 and >600, respectively, at R = 90,000. Based on data collected at Subaru Telescope, which is operated by the National Astronomical Observatory of Japan.

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