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Home All issues Volume 498 / No 1 (April IV 2009) A&A, 498 1 (2009) 167-194 Full HTML
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Table 5:

Source properties derived from the gas and dust. The table has been rearranged compared with Table 1 to reflect the classification in Sect. 6.2
Source $\alpha _{\rm {IR}}$ $N_{\rm {H}_2}^a$ $\Delta\alpha^b$ Massc $L_{\rm {bol}}$ $T_{\rm {bol}}$ C850d $C_{\rm {HCO^+}}$d
    (1022 cm-2)   (10-2 $M_{{\odot}})$ (10-1 $L_{\rm {\odot}}$) (K)    
Embedded sources        
GSS 30e 1.46 23.3/19.4* 2.6 20.5 33 123 0.55 0.69
LFAM 1e 0.73 50* 2.6 17.1 8.3 86 0.59 0.69
VLA 1623 no 441* - 111 2.7 12 0.7 0.72
WL 12 2.49 10.5/15.2* 3.1 4.6 34 155 0.26 0.81
LFAM 26 1.27 14.0/18.5* 4.4 4.5 0.44 238 0.40 0.69
WL 17 0.61 8.4* 1.0 4.0 6.7 323 0.22 0.71
Elias 29 1.69 22.7/33.6* 1.5 6.2 25 424 0.49 -f
IRS 37e 0.25 20.8 1.0 1.2 3.8 243 0.58 0.72
WL 3e -0.03 19.2/9.7* 2.3 2.9 4.6 192 0.25 0.67
WL 6 0.72 11.4 - <0.4 8.5 394 U 0.77
IRS 43 1.17 14.2/20.7* 2.3 17.1 10 134 0.58 0.79
IRS 44 2.29 12.6/30.2D* 2.9 8.0 11 140 0.33 0.80
Elias 32 -0.03 6.8/140* 3.7 41.9 5 321 0.37 0.70
Elias 33 -0.12 13.1/96* 3.1 28.2 12 460 0.6 0.64
IRS 54 0.03 7.4 1.2 3.1 7.8 486 0.8 0.80
IRAS 16285-2355 1.23 5.0/41.9D* 3.1 10.3 0.57 77 0.45 0.80
IRS 63 0.14 3.7/84.0D* - 16.4 13 363 0.75 0.60
Confused sources        
CRBR 2324.1-1619 0.87 31.6/70.5* 5.2 39.3 0.44 283 U U
GY51 0.05 27.7* 4.5 11.1 2.3 706 U U
WL19 -0.43 13.7/16.8* 4.9 5.5 1.5 730 0.15 0.53
IRS 42 -0.03 8.7/14.2* 1.3 4.7 14 540 0.44 0.60
GY 256 -0.05 11.8 - <0.2 1.1 104 U 0.70
Disks        
C2D-162527.6 0.36 - - <0.4 0.16 1051 U U
GSS 26 -0.46 24.3D* 1.8 10.2 3.2 877 0.65 U
CRBR 2315.8-1700 0.69 17.6* 1.0 5.1 0.93 456 0.38 0.74
CRBR 2317.3-1925 -0.56 12.6* 0.3 1.1 0.11 1105 0.85 S
VSSG 1 -0.73 20.1* - 2.0 5.8 930 0.74 SU
CRBR 2339.1-2032 0.45 6.7* - 2.0 0.55 426 0.55 0.58
WL 2 0.02 - - 1.0 0.88 573 0.3 0.58
GY 224 -0.05 10.9* 1.0 2.4 2.1 614 0.63 SU
WL 20S 2.75 10.9/15.3D* 1.0 3.9 4.5 85 0.57 SU
IRS 48 0.88 5.7/15.2D* 2.1 1.2 81 238 0.70 U
GY 312 0.64 - - <0.2 0.73 285 U 0.3
IRS 51 -0.15 4.4/18.4D* 2.3 5.0 8 548 0.27 0.59
C2D-162741.6 0.32 - - 2.3 0.28 279 U U
C2D-162748.2 1.55 - - 0.4 0.17 241 U SU
C2D-162857.9 0.67 - - 5.6 0.22 402 U SU
Haro 1-4 -0.89 - - 0.45 5.6 762 U SU
DoAR 25 -1.12 38.6* - 3.4 4.7 1422 0.90 SU
OphE MM3 -0.33 12.0/13.4* 3.4 2.3 0.17 45 U 0.68
SR 21 -0.79 33.6* - 3.1 1.8 1070 0.89 SU
CRBR 2422.8-3423 1.01 106.6* 2.3 20.5 4.4 157 U -f
IRS 46 0.18 6.3/15.1* 2.8 3.3 1.9 684 U SU
SR 9 -1.07 - - <0.4 8.7 1588 U SU
2MASS 16282 -1.55 - - 1.7 0.84 66 U SU
a Column densities marked with * are calculated from the SCUBA dust maps. Embedded sources where a large disk contribution is likely are indicated with a D. Note that no column densities could be calculated from the dust below 1 $\times$ 1023 cm-2.
b $\Delta \alpha$ is an upper limit to change in 2-24 $\mu $m spectral slope due to the reddening by foreground clouds at this source. This is derived by considering the mean column density at 45'' off the source position.
c Upper limit derived from the 850 $\mu $m data using the relation from Shirley et al. (2000), with the assumption that all 850 $\mu $m emission originates within a protostellar envelope.
d U = Undetected or Unobserved, S = single position spectrum available only.
e Circumbinary envelope.
f Although both Elias 29 and CRBR 2422.8-3423 were observed, these sources are located near the edge of a field and do not have sufficient coverage to obtain a concentration parameter for the HCO+.

Source LaTeX | All tables | In the text

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