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46 New Young Stellar Populati<strong>on</strong> <strong>in</strong> Serpens<br />

# ID a c2d ID α<br />

b 2µm−24µm Spectral Type A V Obs c A V Cloud d A V F<strong>in</strong>al<br />

SSTc2dJ (±subtype) (mag) (mag) (mag)<br />

141 169 18295531+0049393 -0.74 A3±3 3.5 3.02 9.0<br />

142 172 18295592+0040150 -0.85 M4±2 3.5 5.71 3.5<br />

145 178 18295714+0033185 -0.82 G2.5±2.5 3.5 5.19 10.0<br />

146 182 18295772+0114057 0.44 M4±2 4.0 14.05 3.0<br />

148 206 18300178+0032162 -1.25 K7±1 2.0 5.00 7.0<br />

149 210 18300350+0023450 -1.22 M0±1 0.0 2.25 3.5<br />

150 222 18300861+0058466 -0.70 K5±3 0.0 2.79 5.0<br />

Table 2.2 – Stellar parameters for the YSO candidates <strong>in</strong> Serpens<br />

a From Harvey et al. (2007b).<br />

b Obta<strong>in</strong>ed from a l<strong>in</strong>ear fit to the logarithm <strong>of</strong> the fluxes between the 2MASS K<br />

(2µm) and the MIPS1 (24µm) bands (Harvey et al. 2007b).<br />

c Ext<strong>in</strong>cti<strong>on</strong> found <strong>in</strong> this work.<br />

d Ext<strong>in</strong>cti<strong>on</strong> found by “c2d” over 5 ′ regi<strong>on</strong>.<br />

e Post-AGB stars c<strong>on</strong>firmed with Spitzer IRS spectra.

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