Chemical abundances for Hf 2-2 (Liu+, 2006)

Details Chemical abundances for Hf 2-2 (Liu+, 2006) Chemical abundances for Hf 2-2 (Liu+, 2006)

Nov 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006ycat..73681959l&link_type=abstract

VizieR On-line Data Catalog: J/MNRAS/368/1959. Originally published in: 2006MNRAS.368.1959L

Physics

Planetary Nebulae, Abundances

Scientific paper

Hf 2-2 was observed on three photometric nights in June 2001 with the Boller & Chivens long-slit spectrograph mounted on the European Southern Observatory (ESO) 1.52-m telescope. Two wavelength regions were observed. The blue region was observed with a 2400-lines/mm holographic grating, which yielded a dispersion of 32{AA}/mm, or ~0.5{AA}/pix. Some vignetting was observed, in particular on the blue side of this large format CCD, which limited the useful wavelength range to 3540-4800{AA}. A slitwidth of 2arcsec was used for maximum spectral resolution. In addition, in order to obtain magnitudes for the central star, two spectra with slitwidths of 4 and 8arcsec were also obtained.
(2 data files).

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