DMCA
Abundances of s-process elements in (2006)
by
M. J. Barlow
,
R. H. Méndez
,
Planetary Nebulae Br
,
Y. Zhang
,
R. Williams
,
E. Pellegrini
,
K. Cavagnolo
,
B. Sharpee
,
M. Phillips
,
X. -w. Liu
BibTeX
@MISC{Barlow06abundancesof,
author = {M. J. Barlow and R. H. Méndez and Planetary Nebulae Br and Y. Zhang and R. Williams and E. Pellegrini and K. Cavagnolo and B. Sharpee and M. Phillips and X. -w. Liu},
title = {Abundances of s-process elements in},
year = {2006}
}
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Abstract
Abstract. We identify emission lines of post-iron peak elements in very high signal-to-noise spectra of a sample of planetary nebulae. Analysis of lines from ions of Kr and Xe reveals enhancements in most of the PNe, in agreement with the theories of s-process in AGB star. Surprisingly, we did not detect lines from Br even though s-process calculations indicate that it should be produced with Kr at detectable levels.
