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New observations of chemically peculiar stars with ESPaDOnS

  • V. Khalack (a1), B. Yameogo (a1), C. Thibeault (a1) and F. LeBlanc (a1)

Abstract

We present the first results of the estimation of gravity and effective temperature for some poorly studied chemically peculiar stars that were recently observed with the spectropolarimeter ESPaDOnS at CFHT. We have analyzed the spectra of HD71030, HD95608 and HD116235 to determine their radial velocity, vsini and the average abundance of several chemical species. We have also analyzed our results to verify for possible vertical abundance stratification of iron and chromium in these stars.

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Footnotes

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Based on observations obtained at the Canada-France-Hawaii Telescope (CFHT) which is operated by the National Research Council of Canada, the Institut National des Sciences de l'Univers of the Centre National de la Recherche Scientique of France, and the University of Hawaii.

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References

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Hauschildt, P. H., Shore, S. N., Schwarz, G. J., Baron, E., Starrfield, S., & Allard, F. 1997, ApJ, 490, 803
Khalack, V. & Wade, G. 2006, A&A, 450, 1157
Landstreet, J. D. 1988, ApJ, 326, 967
Napiwotzki, R., Yungelson, L., Nelemans, G., et al. 2004, in: Hilditch, R. W., Hensberge, H. & Pavlovski, K. (eds.), ASP-CS (ASP. San Francisco), 318, 402
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