\begin{table}%t1 \caption{\label{tab: star-forming regions}Distances to and ages of star-forming clouds.} %\centering \par \begin{tabular}{lcc} \hline \hline \noalign{\smallskip} Cloud & Age\tablefootmark{a} & $D$\tablefootmark{b} \\ & (Myr) & (pc) \\ \hline Lupus 1 and 2 & ${\la}1$ & $150 \pm 20$ \\ Lupus 3 & 1--1.5 & $200 \pm 20$ \\ Lupus 4 & 1--1.5 & $165 \pm 15$ \\ Cha I & 3--4 (southern subcluster) & $160 \pm 15$ \\ & 5--6 (northern subcluster) & \\ Corona Australis & 5--13 & $\sim$130 \\ Serpens & 1--15 & $259 \pm 37$ \\ Gum nebula & 2--6 & $400 \pm 60$ \\ Taurus-Auriga & 1--10 & $140 \pm 15$ \\ \hline \end{tabular} \tablefoot {\tablefoottext{a}{Ages adopted from \citet{heiles:1998}, \citet{comeron:2003}, \citet{james:2006}, \citet{luhman:2007}, \citet{comeron:2008}, \citet{kenyon:2008}, \citet{neuhauser:2008}, \citet{oliveira:2009}, and references therein.} \\ \tablefoottext{b}{Distances adopted from \citet{brandt:1971}, \citet{kenyon:1994}, \citet{straizys:1996}, \citet{whittet:1997}, \citet{bertout:1999}, \citet{dezeeuw:1999}, \citet{comeron:2008}, \citet{neuhauser:2008}, and references therein.}} \end{table}