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\title{ABUNDANCE PATTERNS OF HEAVY ELEMENTS\\
~\\
IN DAMPED LYMAN-ALPHA GALAXIES}

\author{Varsha P.\ Kulkarni\/\thanks{Also, Department of Astronomy 
\& Astrophysics, University of Chicago, 5640 S.~Ellis Avenue, Chicago, 
IL 60637.}\morethanks{Current Address: Steward Observatory, University 
of Arizona, Tucson, AZ 85721.} and S.\ Michael Fall\\
\\
Space Telescope Science Institute\\
\\
3700 San Martin Drive\\
\\
Baltimore, MD 21218\\
\and
J.~W.\ Truran\/\thanks{Also, the Enrico Fermi Institute.}\\
\\
Department of Astronomy \& Astrophysics\\
\\
University of Chicago\\
\\
5640 S.\ Ellis Avenue\\
\\
Chicago, IL 60637}

\tobe{20 July 1997}{The Astrophysical Journal (Letters)}

\recacc{3 February 1997}{6 May 1997}

\maketitle

\begin{abstract}
\medskip
We present a quantitative analysis of the abundances of heavy elements 
in damped Ly$\alpha$ galaxies in the sample of Lu \etal (1996). 
In particular, we compare the observed gas-phase abundances with those
expected when the intrinsic (\ie nucleosynthetic) pattern is the same 
as that in either the Sun or in Galactic halo stars and when the 
depletion pattern is the same as that in the warm Galactic interstellar 
medium, but with various values of the dust-to-metals ratio.
We find that the observations are equally consistent with the solar and 
halo-star intrinsic patterns and that they favor some depletion, the 
typical dust-to-metals ratio being 40\%--90\% of that in the Milky Way today.
However, neither intrinsic pattern matches the observations perfectly. 
For the solar pattern, the discrepancy is mainly with [Mn/Fe], while for 
the halo-star pattern, the discrepancy is with [Zn/Fe], [Ni/Fe], and 
possibly [Al/Fe]. Our analysis does not support the claim by Lu \etal 
that the damped Ly$\alpha$ galaxies have halo-star abundance patterns 
and no dust depletion.
\end{abstract}