The C60:C60+ ratio in diffuse and translucent interstellar clouds

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Table 3

Upper limits for C₆₀:C as ^uN(C₆₀)/N(C) from the comparison of the A₁ and γ₀ bands of C₆₀ with the 9577.5 and 9632.7 Å bands of C.

LOS	C₆₀, A₁ (3980 Å)		C₆₀, γ₀ (6070 Å)
	C, 9577.5 Å	C, 9632.7 Å	C, 9577.5 Å	C, 9632.7 Å

HD 76341	6.2 (5.3)	4.1 (3.6)	3.1 (2.8)	2.1 (1.9)
	4.2 (3.3)	2.8 (2.2)	...	...
HD 136239	8.2 (6.5)	9.1 (7.4)	1.4 (1.2)	1.6 (1.4)
	3.3 (2.6)	3.7 (2.9)	1.4 (1.2)	1.6 (1.4)
HD 148379	7.3 (5.9)	7.4 (6.0)	1.2 (1.0)	1.2 (1.0)
	1.9 (1.5)	1.9 (1.5)	...	...
HD 167264	8.5 (7.5)	4.1 (3.5)	5.2 (4.7)	2.5 (2.2)
	4.3 (3.5)	2.1 (1.7)	...	...
HD 168625	2.1 (1.6)	1.6 (1.3)	1.3 (1.1)	1.01 (0.88)
	2.1 (1.6)	1.6 (1.3)	1.2 (1.0)	0.90 (0.79)
HD 169454	14 (12)	8.6 (6.9)	1.9 (1.7)	1.1 (1.0)
	6.9 (5.4)	4.1 (3.2)	1.6 (1.4)	0.97 (0.85)
HD 183143	4.0 (3.1)	6.3 (5.1)	1.3 (1.1)	2.0 (1.8)
	4.0 (3.1)	6.3 (5.1)	1.12 (0.97)	1.8 (1.6)

Notes. Values between parentheses are computed errors. Values in italic were obtained by including in the continuum the fitted profiles of atomic stellar lines when in the 4000 Å region, and those of the four DIBs nearest 6070 Å and of the nearby Ne I line when in the 6000 Å region.

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