%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% Bibliography stuff from aastex.cls
%% lines 1551-1648
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\let\jnl@style=\rmfamily 
\def\ref@jnl#1{{\jnl@style#1}}% 
\newcommand\aj{\ref@jnl{AJ}}% Astronomical Journal 
\newcommand\araa{\ref@jnl{ARA\&A}}% Annual Review of Astron and Astrophys 
\newcommand\apj{\ref@jnl{ApJ}}% Astrophysical Journal 
\newcommand\apjl{\ref@jnl{ApJ}}% Astrophysical Journal, Letters 
\newcommand\apjs{\ref@jnl{ApJS}}% Astrophysical Journal, Supplement 
\newcommand\ao{\ref@jnl{Appl.~Opt.}}% Applied Optics 
\newcommand\apss{\ref@jnl{Ap\&SS}}% Astrophysics and Space Science 
\newcommand\aap{\ref@jnl{A\&A}}% Astronomy and Astrophysics 
\newcommand\aapr{\ref@jnl{A\&A~Rev.}}% Astronomy and Astrophysics Reviews 
\newcommand\aaps{\ref@jnl{A\&AS}}% Astronomy and Astrophysics, Supplement 
\newcommand\azh{\ref@jnl{AZh}}% Astronomicheskii Zhurnal 
\newcommand\baas{\ref@jnl{BAAS}}% Bulletin of the AAS 
\newcommand\jrasc{\ref@jnl{JRASC}}% Journal of the RAS of Canada 
\newcommand\memras{\ref@jnl{MmRAS}}% Memoirs of the RAS 
\newcommand\mnras{\ref@jnl{MNRAS}}% Monthly Notices of the RAS 
\newcommand\pra{\ref@jnl{Phys.~Rev.~A}}% Physical Review A: General Physics 
\newcommand\prb{\ref@jnl{Phys.~Rev.~B}}% Physical Review B: Solid State 
\newcommand\prc{\ref@jnl{Phys.~Rev.~C}}% Physical Review C 
\newcommand\prd{\ref@jnl{Phys.~Rev.~D}}% Physical Review D 
\newcommand\pre{\ref@jnl{Phys.~Rev.~E}}% Physical Review E 
\newcommand\prl{\ref@jnl{Phys.~Rev.~Lett.}}% Physical Review Letters 
\newcommand\pasp{\ref@jnl{PASP}}% Publications of the ASP 
\newcommand\pasj{\ref@jnl{PASJ}}% Publications of the ASJ 
\newcommand\qjras{\ref@jnl{QJRAS}}% Quarterly Journal of the RAS 
\newcommand\skytel{\ref@jnl{S\&T}}% Sky and Telescope 
\newcommand\solphys{\ref@jnl{Sol.~Phys.}}% Solar Physics 
\newcommand\sovast{\ref@jnl{Soviet~Ast.}}% Soviet Astronomy 
\newcommand\ssr{\ref@jnl{Space~Sci.~Rev.}}%          % Space Science Reviews 
\newcommand\zap{\ref@jnl{ZAp}}% Zeitschrift fuer Astrophysik 
\newcommand\nat{\ref@jnl{Nature}}% Nature 
\newcommand\iaucirc{\ref@jnl{IAU~Circ.}}% IAU Cirulars 
\newcommand\aplett{\ref@jnl{Astrophys.~Lett.}}% Astrophysics Letters 
\newcommand\apspr{\ref@jnl{Astrophys.~Space~Phys.~Res.}}% Astrophysics Space Physics Research 
\newcommand\bain{\ref@jnl{Bull.~Astron.~Inst.~Netherlands}}% Bul. Astr. Inst. of the Netherlands 
\newcommand\fcp{\ref@jnl{Fund.~Cosmic~Phys.}}% Fundamental Cosmic Physics 
\newcommand\gca{\ref@jnl{Geochim.~Cosmochim.~Acta}}% Geochimica Cosmochimica Acta 
\newcommand\grl{\ref@jnl{Geophys.~Res.~Lett.}}% Geophysics Research Letters 
\newcommand\jcp{\ref@jnl{J.~Chem.~Phys.}}% Journal of Chemical Physics 
\newcommand\jgr{\ref@jnl{J.~Geophys.~Res.}}% Journal of Geophysics Research 
\newcommand\jqsrt{\ref@jnl{J.~Quant.~Spec.~Radiat.~Transf.}}% Journal of Quantitiative Spectroscopy and Radiative Trasfer 
\newcommand\memsai{\ref@jnl{Mem.~Soc.~Astron.~Italiana}}% Mem. Societa Astronomica Italiana 
\newcommand\nphysa{\ref@jnl{Nucl.~Phys.~A}}% Nuclear Physics A 
\newcommand\physrep{\ref@jnl{Phys.~Rep.}}% Physics Reports 
\newcommand\physscr{\ref@jnl{Phys.~Scr}}% Physica Scripta 
\newcommand\planss{\ref@jnl{Planet.~Space~Sci.}}% Planetary Space Science 
\newcommand\procspie{\ref@jnl{Proc.~SPIE}}% Proceedings of the SPIE 
\let\astap=\aap 
\let\apjlett=\apjl 
\let\apjsupp=\apjs 
\let\applopt=\ao 

%%%%%%%%%%%%%%%%%%%%%%%%%%
%% Symbols from aastex.cls
%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%
%% lines 1649-1771
%%%%%%%%%%%%%%%%%%%%%%%%%%
\newcommand\phn{\phantom{0}}% 
\newcommand\phd{\phantom{.}}% 
\newcommand\phs{\phantom{$-$}}% 
\newcommand\phm[1]{\phantom{#1}}% 
\let\la=\lesssim            % For Springer A&A compliance... 
\let\ga=\gtrsim 
\newcommand\sq{\mbox{\rlap{$\sqcap$}$\sqcup$}}% 
\newcommand\arcdeg{\mbox{$^\circ$}}% 
\newcommand\arcmin{\mbox{$^\prime$}}% 
\newcommand\arcsec{\mbox{$^{\prime\prime}$}}% 
\newcommand\fd{\mbox{$.\!\!^{\mathrm d}$}}% 
\newcommand\fh{\mbox{$.\!\!^{\mathrm h}$}}% 
\newcommand\fm{\mbox{$.\!\!^{\mathrm m}$}}% 
\newcommand\fs{\mbox{$.\!\!^{\mathrm s}$}}% 
\newcommand\fdg{\mbox{$.\!\!^\circ$}}% 
\newcommand\farcm@mss{\mbox{$.\mkern-4mu^\prime$}}% 
\let\farcm\farcm@mss 
\newcommand\farcs@mss{\mbox{$.\!\!^{\prime\prime}$}}% 
\let\farcs\farcs@mss 
\newcommand\fp{\mbox{$.\!\!^{\scriptscriptstyle\mathrm p}$}}% 
\newcommand\micron{\mbox{$\mu$m}}% 
\def\farcm@apj{% 
 \mbox{.\kern -0.7ex\raisebox{.9ex}{\scriptsize$\prime$}}% 
}% 
\def\farcs@apj{% 
 \mbox{% 
  \kern  0.13ex.% 
  \kern -0.95ex\raisebox{.9ex}{\scriptsize$\prime\prime$}% 
  \kern -0.1ex% 
 }% 
}% 
\newcommand\case[2]{\mbox{$\frac{#1}{#2}$}}% 
\newcommand\slantfrac{\case}% 
\newcommand\onehalf{\slantfrac{1}{2}}% 
\newcommand\onethird{\slantfrac{1}{3}}% 
\newcommand\twothirds{\slantfrac{2}{3}}% 
\newcommand\onequarter{\slantfrac{1}{4}}% 
\newcommand\threequarters{\slantfrac{3}{4}}% 
\newcommand\ubvr{\mbox{$U\!BV\!R$}}%% UBVR system 
\newcommand\ub{\mbox{$U\!-\!B$}}%   % U-B 
\newcommand\bv{\mbox{$B\!-\!V$}}%   % B-V 
\newcommand\vr{\mbox{$V\!-\!R$}}%   % V-R 
\newcommand\ur{\mbox{$U\!-\!R$}}%   % U-R 
\newcommand\ion[2]{#1$\;${\small\rmfamily\@Roman{#2}}\relax}% 
%%%%\newcommand\nodata{ ~$\cdots$~ }% 
\newcommand\diameter{\ooalign{\hfil/\hfil\crcr\mathhexbox20D}}% 
\newcommand\degr{\arcdeg}% 
\newcommand\Sun{\sun}% 
\newcommand\Sol{\sun}% 
\newcommand\sun{\odot}% 
\newcommand\Mercury{\astro{\char1}}% Mercury symbol, "1" 
\newcommand\Venus{\astro{\char2}}% Venus symbol, "2" 
\newcommand\Earth{\earth}% 
\newcommand\Terra{\earth}% 
\newcommand\earth{\oplus}% 
\newcommand\Mars{\astro{\char4}}% Mars symbol, "4" 
\newcommand\Jupiter{\astro{\char5}}% Jupiter symbol, "5" 
\newcommand\Saturn{\astro{\char6}}% Saturn symbol, "6" 
\newcommand\Uranus{\astro{\char7}}% Uranus symbol, "7" 
\newcommand\Neptune{\astro{\char8}}% Neptune symbol, "8" 
\newcommand\Pluto{\astro{\char9}}% Pluo symbol, "9" 
\newcommand\Moon{\astro{\char10}}% Moon symbol, "M" 
\newcommand\Luna{\Moon}% 
\newcommand\Aries{\astro{\char11}}% 
\newcommand\VEq{\Aries}% vernal equinox (Aries) 
\newcommand\Taurus{\astro{\char12}}% 
\newcommand\Gemini{\astro{\char13}}% 
\newcommand\Cancer{\astro{\char14}}% 
\newcommand\Leo{\astro{\char15}}% 
\newcommand\Virgo{\astro{\char16}}% 
\newcommand\Libra{\astro{\char17}}% 
\newcommand\AEq{\Libra}% autumnal equinox (Libra) 
\newcommand\Scorpius{\astro{\char18}}% 
\newcommand\Sagittarius{\astro{\char19}}% 
\newcommand\Capricornus{\astro{\char20}}% 
\newcommand\Aquarius{\astro{\char21}}% 
\newcommand\Pisces{\astro{\char22}}% 
\def\load@astro{% 
 \dimen@=1\aas@ptsize\p@ 
 \font\astro@font=Astrosym at\dimen@ 
}% 
\def\astro#1{\leavevmode\hbox{\astro@font#1}}% 
\def\astro@font{% 
 \ClassWarning{aastex}{% 
  Please use class option `astro', since you are using the astro font.% 
 }% 
}% 
\newcommand\sbond{\chem@bnd{\@sbnd}}% 
\newcommand\dbond{\chem@bnd{\@dbnd}}% 
\newcommand\tbond{\chem@bnd{\@tbnd}}% 
\def\chem@bnd#1{% 
 {% 
  \kern.1em\relax 
  \setbox\z@\hbox{M}% 
  \dimen@ii.8em\relax 
  \p@=.1em\relax 
  \dimen@.5\ht\z@\dimen@i-\dimen@ 
  \advance\dimen@1.5\p@\advance\dimen@i-1.0\p@ 
  #1% 
  \kern.1em\relax 
  }% 
 }% 
\def\@sbnd{% 
 \advance\dimen@-1.5\p@\advance\dimen@i1.5\p@ 
 \vrule\@height\dimen@\@depth\dimen@i\@width\dimen@ii\nobreak 
 }% 
\def\@dbnd{% 
 \advance\dimen@-0.5\p@\advance\dimen@i0.5\p@ 
 \vrule\@height\dimen@\@depth\dimen@i\@width\dimen@ii\nobreak 
 \advance\dimen@-1.5\p@\advance\dimen@i1.5\p@ 
 \hskip-\dimen@ii 
 \vrule\@height\dimen@\@depth\dimen@i\@width\dimen@ii\nobreak 
 }% 
\def\@tbnd{% 
 \vrule\@height\dimen@\@depth\dimen@i\@width\dimen@ii\nobreak 
 \advance\dimen@-1.5\p@\advance\dimen@i1.5\p@ 
 \hskip-\dimen@ii 
 \vrule\@height\dimen@\@depth\dimen@i\@width\dimen@ii\nobreak 
 \advance\dimen@-1.5\p@\advance\dimen@i1.5\p@ 
 \hskip-\dimen@ii 
 \vrule\@height\dimen@\@depth\dimen@i\@width\dimen@ii\nobreak 
 }% 

%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% End of symbols inclusion
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% Begin deluxetable inclusion
%% lines 1194-1295 & 1295-1505
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%\newcommand\colhead[1]{\multicolumn{1}{c}{#1}\pt@addcol}% 
%\newcommand\tabletypesize[1]{\def\pt@typesize{#1}}%AO-access to different type sizes in deluxetable 
%\def\pt@typesize{}% 
%\newcommand\tablecolumns[1]{% 
% \pt@column=#1\relax 
% \pt@ncol=#1\relax 
% \global\let\pt@addcol\@empty 
%}% 
%\newcommand\tablecaption[1]{\gdef\pt@caption{#1}}% 
%\newcommand\tablehead[1]{% 
% \gdef\pt@head{% 
%  \hline\hline 
%  \relax\\[-1.7ex]% 
%  #1\hskip\tabcolsep 
%  \\[.7ex]% 
%  \hline 
%  \relax\\[-1.5ex]% 
% }% 
%}% 
%\def\tablehead@aj#1{% 
% \gdef\pt@head{% 
%  #1\hskip\tabcolsep 
%  \\[.7ex]% 
%  \hline 
%  \relax\\[-1.5ex]% 
% }% 
%}% 
%\newif\if@pt@rot 
%\newcommand\rotate{\@pt@rottrue}% 
%\newcommand\tabletail[1]{\gdef\pt@tail{#1}}% 
%\newcommand\tablewidth[1]{\pt@width=#1\relax}% 
%\newcommand\tableheadfrac[1]{\gdef\pt@headfrac{#1}}% 
%\AtBeginDocument{% 
% \let\pt@caption\@empty 
% \let\pt@head\@empty 
% \let\pt@tail\@empty 
% \pt@width\textwidth 
% \def\pt@headfrac{.1}% 
%}% 
%\def\pt@calcnlines{% 
% \begingroup 
%  \if@pt@rot\textheight\textwidth\fi 
%  \pt@typesize%AO-type sizes in deluxetable 
%  \@tempdima\pt@headfrac\textheight 
%  \@tempdimb\textheight\advance\@tempdimb by-\@tempdima 
%  \@tempdima\arraystretch\baselineskip 
%  \divide\@tempdimb by\@tempdima 
%  \global\pt@nlines\@tempdimb 
% \endgroup 
%}% 
%\def\pt@tabacol{% 
% \edef\@preamble{\@preamble\hskip\tabcolsep\tabskip\fill}% 
%}% 
%\newdimen\pt@tmpcapwidth 
%\long\def\@makecaption@plano#1#2{% 
% \@ifdim{\pt@width>\z@}{% 
%  \pt@tmpcapwidth\pt@width 
% }{% 
%  \pt@tmpcapwidth\textwidth 
% }% 
% \center 
%  \parbox{\pt@tmpcapwidth}{% 
%   \@make@caption@text{#1}{#2}% 
%  }% 
% \endcenter 
%}% 
%\def\fnum@ptable{Table \thetable}% 
%\def\fnum@ptablecont{Table \thetable---{\rmfamily Continued}}% 
%\long\def\@make@caption@text#1#2{% 
% \center\rmfamily#1.\quad#2\endcenter 
%}% 
%\long\def\@makecaption@plano@cont#1#2{% 
% \center\rmfamily#1\endcenter 
% \vskip 2.5ex 
%}% 
%\def\fnum@ptablecont@pptt{Table \thetable---{\itshape Continued}}% 
%\long\def\@make@caption@text@pptt#1#2{% 
% \center\sc#1\\[.5ex]#2\endcenter 
%}% 
%\long\def\@makecaption@plano@cont@pptt#1#2{% 
% \center\sc#1\endcenter 
% \vskip 1.5ex 
%}% 
%\def\fnum@ptable@apj{TABLE \thetable}% 
%\def\fnum@ptablecont@apj{TABLE \thetable---{\itshape Continued}}% 
%\long\def\@make@caption@text@apj#1#2{% 
% \center\Large\sc#1\\[.5ex]#2\endcenter 
%}% 
%\long\def\@makecaption@plano@cont@apj#1#2{% 
% \center\Large\sc#1\endcenter 
% \vskip 1.5ex 
%}% 
%\def\fnum@ptable@aj{Table \thetable.}% 
%\def\fnum@ptablecont@aj{Table \thetable.\space{\rmfamily (continued)}}% 
%\long\def\@make@caption@text@aj#1#2{% 
% \center\large{\sc#1}\space#2\endcenter 
%}% 
%\long\def\@makecaption@plano@cont@aj#1#2{% 
% \center\large{\sc#1}\endcenter 
% \vskip 1.5ex 
%}% 
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%\newenvironment{deluxetable}[1]{% 
% \def\pt@format{\string#1}% 
% \let\@acol\pt@tabacol 
% \let\@tabularcr\@ptabularcr 
% \let\@tablenotetext\@ptablenotetext 
% \let\@tablenotes\@ptablenotes 
% \global\pt@ncol\z@ 
% \global\pt@column\z@ 
% \global\pt@page\@ne 
% \gdef\pt@addcol{\global\advance\pt@ncol\@ne}% 
%}{% 
% \spew@tblnotes 
% \typeout@deluxetable 
% \endcenter 
% \end@plano@float 
%}% 
%%%%% Back compatability with outdated ``planotable'':
%%%%%\let@environment{planotable}{deluxetable}% 
%%%%%\def\@plano@float{% Invoked by \startdata 
%%%%% \begingroup 
%%%%%  \if@pt@rot\columnwidth\textheight\fi %AO-deluxetable \rotate 
%%%%%  \@plano@float@{table}% 
%%%%%}% 
%%%%%\def\end@plano@float{% S/B invoked by \enddata; instead by \enddeluxetable 
%%%%%  \end@plano@float@ 
%%%%% \endgroup 
%%%%%}% 
%%%%%\def\@plano@float@{\@float}%AO-extra layer of abstraction for float processing 
%%%%%\def\end@plano@float@{\end@float}% 
%%%%%\appdef\@endfloatbox{% 
%%%%% \if@pt@rot\global\setbox\@currbox\vbox{\rotatebox{90}{\box\@currbox}}\fi 
%%%%%}% 
%\def\typeout@deluxetable@mss{% 
% \typeout{% 
%  Table \thetable\space has been set to width \the\pt@width 
% }% 
%}% 
%\def\typeout@deluxetable@ppt{% 
% \typeout{% 
%  Page  \the\pt@page \space of table \thetable\space has been set to 
%  width \the\pt@width\space with \the\pt@nlines\space lines per page 
% }% 
%}% 
%\let\typeout@deluxetable\typeout@deluxetable@mss 
%\newcommand\startdata{% 
% \pt@calcnlines 
% \@ifdim{\pt@width>\z@}{% 
%  \def\@halignto{\@to\pt@width}% 
% }{% 
%  \def\@halignto{}% 
% }% 
% \let\fnum@table=\fnum@ptable 
% \let\@makecaption\@makecaption@plano 
% \global\pt@line\z@ 
% \start@pt@tabular 
% \after@startdata 
%}% 
%\def\start@pt@tabular{% 
% \@plano@float 
% \center 
% \expandafter\caption\expandafter{\pt@caption}% 
% \pt@typesize%AO-type sizes in deluxetable 
% \expandafter\@tabular\expandafter{\pt@format}% 
%}% 
%\def\set@pt@box#1{\setbox\pt@box}% 
%\def\after@startdata{\pt@head}% 
%\def\after@startdata@aj{\hline\hline\relax\\[-1.7ex]\pt@head}% 
%\def\enddata{% 
% \crcr 
% \noalign{\vskip .7ex}% 
% \before@enddata 
% \endtabular 
% \setbox\pt@box\lastbox 
% \pt@width\wd\pt@box\box\pt@box 
%}% 
%\def\before@enddata{\hline}% 
%\def\before@enddata@aj{\hline\hline}% 
%\def\nl{\substitute@command\nl\\}% 
%\def\nextline{\substitute@command\nextline\\}% 
%\def\@ptabularcr{% 
% {\ifnum0=`}\fi % A klootch just in case the next token is & or \cr 
% \@ifstar{% 
%  \@testopt{\@argptabularcr\@empty}\z@skip 
% }{% 
%  \@testopt{\@argptabularcr\ptable@@split}\z@skip 
% }% 
%}% 
%\def\@argptabularcr#1[#2]{% 
% \ifnum0=`{\fi}% To undo the effect of the klootch. 
% \@ifdim{#2>\z@}{% 
%  \unskip\@xargarraycr{#2}% 
% }{% 
%  \@yargarraycr{#2}% 
% }\ptable@split#1% 
%}% 
%\def\ptable@split#1{% 
% \noalign{% 
%  \global\advance\pt@line\@ne 
%  \@ifnum{\pt@line<\pt@nlines}{}{% 
%   \aftergroup#1% 
%  }% 
% }% 
%}% 
%\def\ptable@@split{% 
%  \before@suspendpt 
%  \endtabular 
%  \setbox\pt@box\lastbox 
%  \pt@width\wd\pt@box\box\pt@box 
%  \typeout@pt@nl 
%  \global\advance\pt@page\@ne 
%  \endcenter 
%  \end@plano@float 
%  \clearpage 
%  \addtocounter{table}{\m@ne}% 
%  \let\fnum@table=\fnum@ptablecont 
%  \let\@makecaption\@makecaption@plano@cont 
%  \global\pt@ncol=\pt@column%  Either 0 or value of \tablecolumns 
%  \global\pt@line\z@ 
%  \start@pt@tabular 
%  \before@resumept 
%  \pt@head 
%}% 
%\def\before@suspendpt{}% 
%\def\before@resumept{}% 
%\def\before@suspendpt@aj{\@tabularcr\noalign{\vskip .7ex}\hline}% 
%\def\before@resumept@aj{\hline\relax\@tabularcr[-1.7ex]}% 
%\def\typeout@pt@nl@ppt{% 
% \typeout{% 
%  Page \the\pt@page\space of table \thetable\space has been set to 
%  width \the\pt@width 
% }% 
%}% 
%\def\typeout@pt@nl@mss{% 
% \typeout{% 
%  Page \the\pt@page\space of table \thetable\space has been set to 
%  width \the\pt@width\space with \the\pt@nlines\space lines per page 
% }% 
%}% 
%\def\typeout@pt@nl@aj{% 
% \typeout{% 
%  Table \thetable\space has been set to 
%  width \the\pt@width\space with \the\pt@nlines\space lines per page 
% }% 
%}% 
%\let\typeout@pt@nl\typeout@pt@nl@mss 
%\newcommand\tablevspace[1]{\substitute@command\tablevspace\\[#1]}% 
%\newcommand\tablebreak{\substitute@command\tablebreak\\}%{\cr\ptable@@split}% 
%\newcommand\cutinhead[1]{% 
% \noalign{\vskip 1.5ex}% 
% \hline 
% \@ptabularcr 
% \noalign{\vskip -4ex}% 
% \multicolumn{\pt@ncol}{c}{#1}% 
% \@ptabularcr 
% \noalign{\vskip .8ex}% 
% \hline 
% \@ptabularcr 
% \noalign{\vskip -2ex}% 
%}% 
%\def\cutinhead@ppt#1{% 
% \noalign{\vskip 1.5ex}% 
% \hline 
% \@ptabularcr 
% \noalign{\vskip -2ex}% Style Note: in apj, it is -1.5ex 
% \multicolumn{\pt@ncol}{c}{#1}% 
% \@ptabularcr 
% \noalign{\vskip .8ex}% 
% \hline 
% \@ptabularcr 
% \noalign{\vskip -2ex}% 
%}% 
%\newcommand\sidehead[1]{% 
% \noalign{\vskip 1.5ex}% 
% \multicolumn{\pt@ncol}{@{\hskip\z@}l}{#1}% 
% \@ptabularcr 
% \noalign{\vskip .5ex}% 
%}% 
%\def\@ptablenotetext#1#2{% 
% \vspace{0ex}% Style Note: in ppt, it is gone 
% {\parbox{\pt@width}{\hskip1em$^{\mathrm#1}$#2}\par}% 
%}% 
%\def\@ptablenotes#1{% 
% \par 
% \vspace{2ex}% 
% {\setlength\parskip{1.5ex}#1}% 
%}% 
%\def\@ptablenotes@apj#1{% 
% \par 
% \vspace{2ex}% 
% {#1}% 
%}% 
%\newcommand\tablerefs[1]{\appgdef\tblnote@list{\@tableref{#1}}}% 
%\def\@tableref#1{% 
% \par 
% \vspace*{3ex}% 
% {\parbox{\pt@width}{\hskip1em\rmfamily References. --- #1}\par}% 
%}% 
%\newcommand\tablecomments[1]{\appgdef\tblnote@list{\@tablecom{#1}}}% 
%\def\@tablecom#1{% 
% \par 
% \vspace*{3ex}% 
% {\parbox{\pt@width}{\hskip1em\rmfamily Note. --- #1}\par}% 
%}% 
%\def\@tableref@pptt#1{% 
% \par 
% \vspace*{3ex}{% 
% \parbox{\pt@width}{\hskip1em{\sc References.---}#1}\par}% 
%}% 
%\def\@tablecom@pptt#1{% 
% \vspace*{3ex}{% 
% \parbox{\pt@width}{\hskip1em{\sc Note.---}#1}\par}% 
%}% 
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% Addition of /plottwo:
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\def\eps@scaling{1.0}% 
\newcommand\epsscale[1]{\gdef\eps@scaling{#1}}% 
\newcommand\plotone[1]{% 
 \centering 
 \leavevmode 
 \includegraphics[width={\eps@scaling\columnwidth}]{#1}% 
}% 
\newcommand\plottwo[2]{% 
 \centering 
 \leavevmode 
 \columnwidth=.45\columnwidth 
 \includegraphics[width={\eps@scaling\columnwidth}]{#1}% 
 \hfil 
 \includegraphics[width={\eps@scaling\columnwidth}]{#2}% 
}%