Table 2
Abundances of fullerenes (% of gas-phase carbon locked in species), derived from emission or absorption measurements in star-forming regions and in the diffuse ISM and evolved stars.
| Emission | Absorption | ||
|
|
|||
| Star-forming regions | |||
|
|
|||
C |
0.01∗ | − | |
| C60 | 0.04−0.06∗∗ | − | |
|
|
|||
| Diffuse ISM | |||
|
|
|||
| C |
0.2 ⋆,† | 0.06−0.1⋆ | |
| C60 | 0.03-0.4⋆ | − | |
|
|
|||
| Evolved stars | |||
|
|
|||
| C |
− | 1.2 ⋆⋆ | |
| C60 | 0.1−3.0⋆⋆⋆ | − | |
Notes. (∗) From Berné et al. (2013); (∗∗) from Castellanos et al. (2014); (⋆) This work, see Appendices B−D; (†) upper limit; (⋆⋆) From Iglesias-Groth & Esposito (2013), for one source only; (⋆⋆⋆) from Cami et al. (2011) and references therein.
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