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Title:
A Search for r-Process Elements in the VELA Supernova Remnant
Authors:
Wallerstein, George; Vanture, Andrew D.; Jenkins, Edward B.; Fuller, George M.
Publication:
Astrophysical Journal v.449, p.688 (ApJ Homepage)
Publication Date:
08/1995
Origin:
APJ; KNUDSEN
ApJ Keywords:
ISM: ABUNDANCES, ISM: SUPERNOVA REMNANTS, NUCLEAR REACTIONS, NUCLEOSYNTHESIS, ABUNDANCES, ULTRAVIOLET: STARS
DOI:
10.1086/176090
Bibliographic Code:
1995ApJ...449..688W

Abstract

After a description of recent developments in the physics of rapid neutron capture in Type II supernovae and a discussion of the detectability of supernovae ejecta, we present the data from a search for Ge, Kr, Yb, Os, and Hg in five stars behind or within the Vela remnant. Only Ge ii was detected, but its column density and the upper limits of the other species show no excess above the estimated contribution of ambient gas. Finally, we discuss the extent that clumping and the improved performance of the GHRS may make r-process ejecta from Vela detectable in the future.

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