Table 2: Metallicities and observed [CII]/CO(1-0) line ratios of nearby galaxies and Galactic star forming regions.
Object 12 + log (O/H) [CII]/CO(1-0) References
NGC 1068 9.07 6000 14, 2, 12
NGC 1156 8.39 10 000 4
NGC 1313 8.25 11 740 14, 7
NGC 1569 8.08 37 000 13, 4, 6
NGC 4449 8.3 14 000 8, 6
NGC 4736 9 2500 14, 2, 12, 10
NGC 6946 9 900 14, 12
IC 10 8.19 14 000 14, 8, 6
IZw 36 7.93 <3000 8
M83 9.16 8000 14, 2, 5
M51 9.23 3500 14, 9, 5
IC 4622 8.09 34 000 3, 4
Orion 8.75 6000 2, 11
LMC 8.35 5600 1
30 Doradus 8.43 69 000 1
SMC 8.03 13 000 1
References. (1) Bolatto et al. (1999); (2) Crawford et al. (1985); (3) Heydari-Malayeri et al. (1990); (4) Hunter et al. (2001); (5) Kramer et al. (2005); (6) Lord et al. (1995); (7) Luhmann et al. (2003); (8) Mochizuki et al. (1998); (9) Nikola et al. (2001); (10) Petitpas & Wilson (2003); (11) Simon et al. (1997); (12) Stacey et al. (1991); (13) Talent (1980); (14) Zaritsky et al. (1994).

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