The abundance of interstellar C60 molecules toward BD+31°643 and other stars

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Table 3

Column densities of $C_{60}^{+}$ $Mathematical equation: $\[\mathrm{C}_{60}^{+}\]$$ .

LOS	W (mÅ)			N₍₊₎^a (10¹² cm⁻²)
	DIB 9577Å	DIB 9632Å	Reference	DIB 9577Å	DIB 9632Å
BD+31°643	227 ± 82	...	1	22 ± 16	...
Cyg OB2 3	...	...	...	...	...
Cyg OB2 5	324	221	2	32 ± 19	31 ± 18
	352 ± 62	...	3	35 ± 22	...
	350 ± 78	263 ± 62	1	35 ± 23	37 ± 24
HD 23180	77 ± 34	141 ± 46	4	7.3 ± 5.5	19 ± 13
HD 24432	...	...	...	...	...
HD 37022	115.5^b	126^b	5	11.0 ± 6.5	17 ± 10
	88–125	...	2	10.2 ± 6.3	...
	125	...	2	12.0 ± 7.1	...
	115	81	2	11.0 ± 6.5	11.0 ± 6.5
	103.5 ± 3.0	95.7 ± 2.8	6	9.9 ± 5.8	13.0 ± 7.7
	71 ± 20	72 ± 15	1	6.7 ± 4.5	9.7 ± 6.2
HD 41690	...	...	...	...	...
HD 183143	266^b	311^b	5	26 ± 15	44 ± 26
	300	203	2	30 ± 18	28 ± 17
	300 ± 20	105 ± 20	4	30 ± 17	14.3 ± 9.0
	330 ± 26	...	3	33 ± 19	...
	260 ± 5	263 ± 3	7	25 ± 15	37 ± 22
	...	193	8	...	27 ± 16

Notes. (1) Galazutdinov et al. (2021); (2) Galazutdinov et al. (2000); (3) Galazutdinov & Krełowski (2017); (4) Galazutdinov et al. (2017); (5) Foing & Ehrenfreund (1997); (6) Misawa et al. (2009); (7) Cox et al. (2014); (8) Smoker et al. (2023). ^(a)This work. The values and their errors include a correction for large errors (Seiler 1987). ^(b)Values derived from equivalent widths per reddening unit reported by Foing & Ehrenfreund (1997).

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