Bibcode
Díaz-Luis, J. J.; García-Hernández, D. A.; Manchado, A.; García-Lario, P.; Villaver, E.; García-Segura, G.
Referencia bibliográfica
Planetary Nebulae: Multi-Wavelength Probes of Stellar and Galactic Evolution, Proceedings of the International Astronomical Union, IAU Symposium, Volume 323, pp. 150-154
Fecha de publicación:
10
2017
Número de citas
0
Número de citas referidas
0
Descripción
The formation process(es) of fullerenes in space is still uncertain and
several mechanisms have been proposed in the literature. In particular,
the most accepted idea to explain the simultaneous presence of
fullerenes and PAH-like emission in the H-rich circumstellar envelopes
of PNe is that these molecular species may be formed from the
photochemical processing of a carbonaceous compound with a mixture of
aromatic and aliphatic structures, which should be a major constituent
of their circumstellar envelopes. Here we present seeing-limited
narrow-band mid-IR GTC/CanariCam images of the fullerene-containing PN
IC 418. The narrow-band images cover the 9-13, 11.3, and 17.4 μm
emission features (and their adjacent continua) in this extended PN. We
study the relative sub-arcsecond spatial distribution of the nebula in
these filters with the intention of getting some clues about the
formation process of fullerenes in H-rich circumstellar environments.