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Home All issues Volume 498 / No 1 (April IV 2009) A&A, 498 1 (2009) 161-165 Full HTML
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This article has an erratum: [https://doi.org/10.1051/0004-6361/200811391e]

   

Table 1:

Observed molecular lines.

Molecule		 Transition Frequency $E_{\rm up}$ Peak position (mpc)(d) $\int T_{\rm mb}{\rm d}v$(e) $N_{\rm mb}$ (cm-2)(g)
       (MHz) (K) NE slice SW slicemodel (K km s-1)n=105 cm-3 LTE

C2H		 NJ=47/2$\to$ 35/2 349400.5(a) 42 -14$\pm$ 1.8 -23$\pm$ 1.0 -16 10.2$\pm$ 1.9 5.5 $\times$ 1014 2.7 $\times$ 1014
C2H NJ=49/2$\to$ 37/2 349337.8(b) 42 -14$\pm$ 1.5 -23$\pm$ 1.6 -16 13.5$\pm$ 2.4 6.4 $\times$ 1014 2.9 $\times$ 1014
o-H2CO JKpKo=515$\to$ 414 351768.6 62 -3$\pm$ 1.3 -7$\pm$ 1.9 -12 11.1$\pm$ 1.9 9.7 $\times$ 1014 4.3 $\times$ 1013
SO NJ=89$\to$ 78 346528.5 79 -2$\pm$ 1.4 -5$\pm$ 1.0 8 6.1$\pm$ 1.1 1.5 $\times$ 1015 7.7 $\times$ 1013
C18O J=2$\to$ 1 219560.4 16 0$\pm$ 1.2 0$\pm$ 1.4 0 95.2$\pm$ 16 1.5 $\times$ 1016 1.8 $\times$ 1016
HCN J=3$\to$ 2 265886.2(c) 26 3$\pm$ 2.5 -1$\pm$ 1.8 8 420$\pm$ 78 8.1 $\times$ 1015 4.4 $\times$ 1014
13CO J=3$\to$ 2 330588.0 32 4$\pm$ 1.9 -1$\pm$ 3.0 2 132$\pm$ 22 >2.1 $\times$ 1016(f) >2.5 $\times$ 1016(f)
(a) Blend of F=4-3 and F=3-2 hyperfine components (separation 1.4 MHz). (b) Blend of F=5-4 and F=4-3 hyperfine components (separation 1.3 MHz). (c) Blend of F=3-3, F=3-2 and F=2-1 hyperfine components (total separation 1.5 MHz). (d) Fitted position of the emission peak along the slice through the northeast and southwest cores (see Fig. 1), and the modeled slice (Fig. 3, bottom panel), all relative to the C18O peak. (e) Fitted value of integrated intensity at peak position along the northeast slice (see Fig. 1); uncertainties include fitting uncertainty and 15% absolute calibration uncertainty. (f) Column density uncertain due to high optical depth; values listed here are lower limits. (g) Beam-averaged column densities for n=105 cm-3 and in LTE, both at T=85 K.

Source LaTeX | All tables | In the text

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