Table 1: Sightlines lacking interstellar CO J=1-0 emission¹.
Target l b $v_{\rm tel}$ rms N(CO) N(H₂)

HD $^\circ$ $^\circ$ km s^-1 K $~{\rm cm}^{-2}$ $~{\rm cm}^{-2}$

13994 134.39 -3.42 -6.17 0.098

21856 196.46 -50.96 -29.36 0.124 20.04

22951 158.92 -16.70 -14.08 0.087 14.22 20.46

23408 166.17 -23.51 -18.11 0.098 19.75

23480 166.57 -23.75 -17.98 0.169 20.12

23630 166.67 -23.46 -18.32 0.088 <12.34 19.54

23850 167.01 -23.23 -18.56 0.162

23840 159.46 -15.03 -33.41 0.055

24912 160.37 -13.11 -12.78 0.066 13.49 20.53

30614 144.07 14.04 -14.38 0.073 14.49 20.34

34078 172.08 -2.26 -6.72 0.126

35149 199.16 -17.86 -14.71 0.107 <13.00 18.30

36486 203.86 -17.74 -14.17 0.116 <12.04 14.74

37128 205.21 -17.24 -14.13 0.085 <12.30 16.28

42087 187.75 1.77 -30.60 0.098

57060 237.82 -5.37 -5.79 0.157 <12.67 15.78

57061 238.18 -5.54 -5.89 0.158 <12.61 15.48

58510 235.52 -2.47 -23.78 0.138

121968 333.97 55.84 29.95 0.145 <12.30 18.70

143275 350.10 22.49 18.28 0.099 12.49 19.41

144217 353.19 23.60 35.21 0.116 13.63 19.83

144470 352.75 22.77 34.93 0.120 12.95 20.05

145502 354.61 22.70 34.88 0.120 12.76 19.89

164353 29.73 12.63 10.47 0.086 13.04 20.26

166937 10.00 -1.60 24.39 0.131

167971 18.25 1.68 5.93 0.129

170074 75.06 23.71 14.80 0.090

177989 17.81 -11.88 -1.67 0.123 14.64 20.23

181615 21.84 -13.77 -2.31 0.153

184915 31.77 -13.29 -2.70 0.101 20.31

192639 74.90 1.48 2.07 0.131 14.13 20.69

193237 75.83 1.32 2.23 0.102

197592 30.70 -32.15 -13.21 0.121

198478 85.75 1.49 1.09 0.102

198781 99.94 12.61 6.23 0.066 15.22 20.56

199579 85.70 -0.30 0.23 0.112 20.36

201345 78.44 -9.54 -4.69 0.064 <12.40 19.43

203064 87.61 -3.84 -1.71 0.092 20.29

206773 99.80 3.62 0.55 0.101 14.20 20.47

209339 104.58 5.87 1.96 0.105 13.95 20.25

209975 104.87 5.39 1.80 0.080 20.08

217035 110.25 2.86 -0.26 0.090 14.57 20.95

217675 102.21 -16.10 -10.33 0.135 12.75 19.67

218915 108.06 -6.89 -5.68 0.134 13.64 20.15

224572 115.55 -6.36 -5.99 0.113

**Table 1:** Sightlines lacking interstellar CO J=1-0 emission¹.
Target	l	b	$v_{\rm tel}$	rms	N(CO)	N(H₂)
HD	$^\circ$	$^\circ$	km s^-1	K	$~{\rm cm}^{-2}$	$~{\rm cm}^{-2}$
13994	134.39	-3.42	-6.17	0.098
21856	196.46	-50.96	-29.36	0.124		20.04
22951	158.92	-16.70	-14.08	0.087	14.22	20.46
23408	166.17	-23.51	-18.11	0.098		19.75
23480	166.57	-23.75	-17.98	0.169		20.12
23630	166.67	-23.46	-18.32	0.088	<12.34	19.54
23850	167.01	-23.23	-18.56	0.162
23840	159.46	-15.03	-33.41	0.055
24912	160.37	-13.11	-12.78	0.066	13.49	20.53
30614	144.07	14.04	-14.38	0.073	14.49	20.34
34078	172.08	-2.26	-6.72	0.126
35149	199.16	-17.86	-14.71	0.107	<13.00	18.30
36486	203.86	-17.74	-14.17	0.116	<12.04	14.74
37128	205.21	-17.24	-14.13	0.085	<12.30	16.28
42087	187.75	1.77	-30.60	0.098
57060	237.82	-5.37	-5.79	0.157	<12.67	15.78
57061	238.18	-5.54	-5.89	0.158	<12.61	15.48
58510	235.52	-2.47	-23.78	0.138
121968	333.97	55.84	29.95	0.145	<12.30	18.70
143275	350.10	22.49	18.28	0.099	12.49	19.41
144217	353.19	23.60	35.21	0.116	13.63	19.83
144470	352.75	22.77	34.93	0.120	12.95	20.05
145502	354.61	22.70	34.88	0.120	12.76	19.89
164353	29.73	12.63	10.47	0.086	13.04	20.26
166937	10.00	-1.60	24.39	0.131
167971	18.25	1.68	5.93	0.129
170074	75.06	23.71	14.80	0.090
177989	17.81	-11.88	-1.67	0.123	14.64	20.23
181615	21.84	-13.77	-2.31	0.153
184915	31.77	-13.29	-2.70	0.101		20.31
192639	74.90	1.48	2.07	0.131	14.13	20.69
193237	75.83	1.32	2.23	0.102
197592	30.70	-32.15	-13.21	0.121
198478	85.75	1.49	1.09	0.102
198781	99.94	12.61	6.23	0.066	15.22	20.56
199579	85.70	-0.30	0.23	0.112		20.36
201345	78.44	-9.54	-4.69	0.064	<12.40	19.43
203064	87.61	-3.84	-1.71	0.092		20.29
206773	99.80	3.62	0.55	0.101	14.20	20.47
209339	104.58	5.87	1.96	0.105	13.95	20.25
209975	104.87	5.39	1.80	0.080		20.08
217035	110.25	2.86	-0.26	0.090	14.57	20.95
217675	102.21	-16.10	-10.33	0.135	12.75	19.67
218915	108.06	-6.89	-5.68	0.134	13.64	20.15
224572	115.55	-6.36	-5.99	0.113

¹ For explanation of table entries see Sect. 3; all column densities are logarithmic.

Source LaTeX | All tables | In the text