\documentstyle{preprint}
\begin{document}
\title{NEBULAE AROUND LVBs AND RELATED STARS:\\
~\\
MORPHOLOGY, DYNAMICS, AGE, MASS}

\author{Antonella Nota\/\thanks{Affiliated with the Astrophysics 
Divsion, Space Science Department of the European Space Agency} 
and Mark Clampin\\
\\
Space Telescope Science Institute\\
\\
3700 San Martin Drive\\
\\
Baltimore, MD  21218}

\pub{{\em the proceedings of}\\
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Luminous Blue Variables: Massive Stars in Transition\\
~\\
{\em held October 1996 in Kona, Hawaii}}
\maketitle

\begin{abstract}
Nebula around LBVs have proven to be a fundamental diagnostic 
tool to understand how mass is lost in the post main sequence 
phases of very massive stars.  Most LBVs are surrounded by 
circumstellar nebulae constituted by stellar material ejected 
during one or more violent outbursts.  On the overall these 
nebulae appear to have similar physical properties, which would 
point to a common formation mechanism.  They are mostly bipolar, 
which would indicate that the formation mechanism is based on 
an interacting wind scenario.  We find ejected nebulae around 
stars which are not confirmed LBVs but are similar in terms of 
temperature and luminosity.  These nebulae are very similar to 
the LBV nebulae in terms of size, mass and dynamical ages, 
implying that the central stars have shared the same violent 
phases which characterise LBV evolution.
\end{abstract}
\end{document}