Optical Spectroscopy of the Post-AGB Star HD 89353

Details Optical Spectroscopy of the Post-AGB Star HD 89353 Optical Spectroscopy of the Post-AGB Star HD 89353

Aug 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aspc..404..316m&link_type=abstract

The Eighth Pacific Rim Conference on Stellar Astrophysics: A Tribute to Kam-Ching Leung ASP Conference Series, Vol. 404, proceed

Astronomy and Astrophysics

Astrophysics

Scientific paper

Using the compact spectrograph at 600 lines/mm, and the 50.8 cm telescope at the Langkawi National Observatory, we obtained moderate resolution spectra of the post-AGB star HD 89353. The objective is to measure carbon and nitrogen abundances as a test of nucleosynthesis in AGB stars. The wavelength covered is between 4800-5600, 6467-7276, and 7035-7840 Å. A preliminary analysis showed the presence of the CI lines: 4932.00, 5039.05, 6586.269, 7108.934, 7111.480, 7113.178, 7115.182, 7116.991 and 7119.656 Å, and the NI lines: 7442.28 and 7423.63 Å. There was also emission line of H-alpha. We measured the equivalent widths of the C and N lines for future abundance calculation.

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