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Table B.2.

Literature comparison of J = 2−1 12CO/13CO

NGC This Lit. Ratio Telescope (a) Ref
paper value
(1) (2) (3) 4) (5) (6)
660 17.0 21.8 0.78 O 6,10
1068 12.8 10 1.28 J 1
1365 11.5 10/13 0.98 J/SMA 5/22
1808 12.6 15.5 0.81 S 6,10
2146 8.7 9.9 0.88 O 6,10
3034 10.8 11.9 0.91 J 24
3034 14.3 11.3 1.29 I 25
3227 13.5 25 0.54 J 5
3256 16 10/21/23/17 0.90 S/SMA 6,10,8/27
4039 12.9 12.0 13/13/10 C/J/I 3/15/16
4038 15.8 19.8 27/16/16 C/J/I 3/15/16
4051 21 14 1.50 J 5
4414 8.5 9 0.94 I 18
4736 10.1 13.6 0.74 C 3
4826 5.1 5.3 0.96 O 6,10
5033 8.3 6 1.38 J 5
5135 9.1 13 0.70 J 5
6240 40 53 0.75 J 1
6764 24 15 1.60 I 20
7331 6.2 6 1.03 I 29
7469 17 15 1.13 J 5

Notes.

(a)

S: Swedish-ESO Submillimeter Telescope (SEST); O: Onsala Space Observatory (OSO); I: Institut Radio Astronomie Millimétrique – Pico Veleta (IRAM); J: James Clerk Maxwell Telescope (JCMT); C: Caltech Submillimeter Telescope (CSO) SMA: Smithsonian Millimeter Array.

References to Tables B.1 and B.2. (1) Papadopoulos et al. (2012); (2) Tan et al. (2011); (3) Glenn & Hunter (2001); (4) Paglione et al. (2001); (5) Papadopoulos & Seaquist (1998); (6) Aalto et al. (1995); (7) Garay et al. (1993); (8) Casoli et al. (1992); (10) Aalto et al. (1991a,b); (11) Young & Sanders (1986); (12) Rickard & Blitz (1985); (13) Encrenaz et al. (1979); (15) Zhu et al. (2003); (16) Schulz et al. (2007); (18) Braine et al. (1993b); (19) Golla & Wielebinsky (1994) (20) Eckart et al. (1991); (21) Sakamoto et al. (1997); (22) Sakamoto et al. (2007); (23) Sandqvist et al. (1988); (24) Petitpas & Wilson (2000); (25) Mao et al. (2000); (26) Costagliola et al. (2011); (27) Sakamoto et al. (2014); (28) Vila-Vilaro et al. (2015); (29) Krips et al. (2010); (30) Muraoka et al. (2016); (31) Cormier et al. (2018).

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