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 gcclusters.tex ApJ, August 2004, in press 
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%astro-ph/0404544
%http://www.astro.northwestern.edu/~claw/docs/

\documentstyle{article}
\begin{document} 
\title{X-Ray Observations of Stellar Clusters Near the Galactic Center}

\author{C. Law and F. Yusef-Zadeh}
\affil{Department of Physics and Astronomy, Northwestern University, 
Evanston, IL 60208}

\begin{abstract}
We report the first detection of X-ray emission from the Quintuplet star
cluster and comp are its X-ray emission to that of the Arches star
cluster.  Four point sources are signif icantly detected near the core of
the Quintuplet cluster with a total, absorption-correct ed luminosity of
$\sim1\times10^{33}$ ergs s$^{-1}$.  Diffuse, thermal emission is also d
etected near the core of the Quintuplet cluster with an
absorption-corrected luminosity o f $\sim1\times10^{34}$ ergs s$^{-1}$.  
We analyze the diffuse and point-like emission fro m the Arches and
Quintuplet and discuss the possibility that they are host to cluster win d
outflows.  We also present the results of our search for X-ray emission
from candidate star clusters in the Galactic center (GC) region.  We use
extinction estimated by near-IR colors and X-ray spectral fits, as well as
other IR properties, to determine if the cand idate clusters are new, GC
star clusters.  We find that three of the six candidate cluste rs found
toward the GC are likely foreground clusters, two of the candidate
clusters are not detected in the X-ray data, but have near-IR extinctions
consistent with a GC locatio n, and one of the candidate clusters has
X-ray and near-IR extinctions consistent with be ing in the GC.  The X-ray
and IR emission from the candidate clusters is compared to the known,
massive, GC star clusters. 
\end{abstract}