Table 3: Results for the nucleus of NGC 253.
NGC 253            
Transition Freq Beam size $\int(T_{\rm mb}{\rm d}v)$ Intensity Flux Referencesa
  (GHz) ( $\hbox{$^{\prime\prime}$ }$) (K km s-1) (W m-2 sr-1) (W m-2)  
CI(3P1-3P0) 492.162 10.20 $575.0 \pm 115.0^{b}$ $7.0\times10^{-8}$ $1.9\times10^{-16}$ 5
    21.90 $204.0\pm41.0$ $2.5\times10^{-8}$ $3.2\times10^{-16}$ 5
    43.00 $98.0\pm19.6^{b}$ $1.2\times10^{-8}$ $5.9\times10^{-16}$ 5
    22.00 $290.0\pm45$ $3.5\times10^{-8}$ $4.6\times10^{-16}$ 10*
    23.00 $320.0\pm64.0^{b}$ $3.9\times10^{-8}$ $5.5\times10^{-16}$ 4
CI(3P2-3P1) 809.902 8.95 $188.5\pm37.7$ $1.0\times10^{-7}$ $2.2\times10^{-16}$ 11
    21.9 $58.1\pm11.6$ $3.2\times10^{-8}$ $4.0\times10^{-16}$ 11*
12CO(1-0) 115.271 43.00 $343.0\pm68.6^{b}$ $5.4\times10^{-10}$ $2.6\times10^{-17}$ 2
    23.00 $920.0\pm82.8$ $1.4\times10^{-9}$ $2.0\times10^{-17}$ 6*
12CO(2-1) 230.538 23.00 $1062.0\pm116.8$ $1.3\times10^{-8}$ $1.9\times10^{-16}$ 7*
    21.00 $926.0\pm185.2^{b}$ $1.2\times10^{-8}$ $1.4\times10^{-16}$ 2
12CO(3-2) 345.796 21.90 $815.6\pm163.1$ $3.5\times10^{-8}$ $4.4\times10^{-16}$ 11*
    23.00 $998.0\pm139.7$ $4.2\times10^{-8}$ $5.9\times10^{-16}$ 7
    23.00 $1194.0\pm238.8^{b}$ $5.0\times10^{-8}$ $7.1\times10^{-16}$ 2
    14.00 $1200.0\pm240.0^{b}$ $5.1\times10^{-8}$ $2.6\times10^{-16}$ 5
    21.90 $618.9\pm123.8$ $2.6\times10^{-8}$ $3.3\times10^{-16}$ 5
    22.00 $680.0\pm60.0$ $2.9\times10^{-8}$ $3.7\times10^{-16}$ 8
12CO(4-3) 461.041 15.00 $507.0\pm101.4^{b}$ $5.1\times10^{-8}$ $3.0\times10^{-16}$ 3
    21.90 $285.3\pm57.1$ $2.9\times10^{-8}$ $3.7\times10^{-16}$ 3
    22.00 $1019.0\pm120$ $1.0\times10^{-7}$ $1.3\times10^{-15}$ 9*
    10.40 $2160.0\pm432.0^{b}$ $2.1\times10^{-7}$ $6.2\times10^{-16}$ 5
    21.90 $786.2\pm157.2$ $7.9\times10^{-7}$ $1.0\times10^{-15}$ 5
12CO(6-5) 691.473 10.60 $1394\pm278.8$ $4.7\times10^{-7}$ $1.4\times10^{-15}$ 11
    21.90 $518.3\pm104.3$ $1.8\times10^{-7}$ $2.2\times10^{-15}$ 11*
    8/30 $861\pm258.3$ $2.9\times10^{-7}$ $5.0\times10^{-15}$ 1
12CO(7-6) 806.652 8.95 $810.2\pm162.0$ $4.3\times10^{-7}$ $9.3\times10^{-16}$ 11
    21.90 $249.9\pm50.3$ $1.3\times10^{-7}$ $1.7\times10^{-15}$ 11*
    11.5/60 $1370\pm411$ $7.3\times10^{-7}$ $2.6\times10^{-15}$ 10
13CO(1-0) 110.201 23.00 $80\pm8.0$ $1.1\times10^{-10}$ $1.5\times10^{-18}$ 7*
13CO(2-1) 220.399 23.00 $82\pm9.8$ $9.0\times10^{-10}$ $1.3\times10^{-17}$ 7*
    21.00 $104\pm20.8^{b}$ $1.1\times10^{-9}$ $1.3\times10^{-17}$ 2
13CO(3-2) 330.588 23.00 $90\pm12.6$ $3.3\times10^{-9}$ $4.7\times10^{-17}$ 7*
    23.00 $210\pm42.0^{b}$ $7.8\times10^{-9}$ $1.1\times10^{-16}$ 2
a References: 1: Harris et al. (1991); 2: Wall et al. (1991); 3: Guesten et al. (1993); 4: Harrison et al. (1995); 5: Israel et al. (1995); 6: Mauersberger et al. (1996); 7: Harrison et al. (1999); 8: Dumke et al. (2001); 9: Israel & Baas (2002); 10: Bradford et al. (2003); 11: this work; *: used for models.
b The error is not given in the referenced paper. It has been estimated to be 20%.


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