THE FORMATION OF COSMIC FULLERENES FROM AROPHATIC CLUSTERS

Micelotta, Elisabetta R.; Cami, Jan; Peeters, Els; Fanchini, Giovanni; Jones, Anthony P.; Bernard-Salas, Jeronimo

doi:10.1088/0004-637X/761/1/35

Title: THE FORMATION OF COSMIC FULLERENES FROM AROPHATIC CLUSTERS

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Abstract

Fullerenes have recently been identified in space and they may play a significant role in the gas and dust budget of various astrophysical objects including planetary nebulae (PNe), reflection nebulae, and H II regions. The tenuous nature of the gas in these environments precludes the formation of fullerene materials following known vaporization or combustion synthesis routes even on astronomical timescales. We have studied the processing of hydrogenated amorphous carbon (a-C:H or HAC) nanoparticles and their specific derivative structures, which we name ''arophatics'', in the circumstellar environments of young, carbon-rich PNe. We find that UV-irradiation of such particles can result in the formation of fullerenes, consistent with the known physical conditions in PNe and with available timescales.

Authors:

Micelotta, Elisabetta R.; Cami, Jan; Peeters, Els; Fanchini, Giovanni ^[1]; Jones, Anthony P.; Bernard-Salas, Jeronimo ^[2]

Department of Physics and Astronomy, University of Western Ontario, London, Ontario N6A 3K7 (Canada)
Institut d'Astrophysique Spatiale, CNRS/Universite Paris Sud, F-91405 Orsay (France)

Publication Date:: Mon Dec 10 00:00:00 EST 2012

OSTI Identifier:: 22143624

Resource Type:: Journal Article

Journal Name:: Astrophysical Journal

Additional Journal Information:: Journal Volume: 761; Journal Issue: 1; Other Information: Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0004-637X

Country of Publication:: United States

Language:: English

Subject:: 37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; 79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; 77 NANOSCIENCE AND NANOTECHNOLOGY; COMBUSTION; COSMIC DUST; FULLERENES; H2 REGIONS; HYDROGENATION; IRRADIATION; NANOSTRUCTURES; PLANETARY NEBULAE; SPACE; STARS; SYNTHESIS; ULTRAVIOLET RADIATION

Citation Formats


                    Micelotta, Elisabetta R., Cami, Jan, Peeters, Els, Fanchini, Giovanni, Jones, Anthony P., and Bernard-Salas, Jeronimo. THE FORMATION OF COSMIC FULLERENES FROM AROPHATIC CLUSTERS.  United States: N. p., 2012. 
        Web.  doi:10.1088/0004-637X/761/1/35.

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                    Micelotta, Elisabetta R., Cami, Jan, Peeters, Els, Fanchini, Giovanni, Jones, Anthony P., & Bernard-Salas, Jeronimo. THE FORMATION OF COSMIC FULLERENES FROM AROPHATIC CLUSTERS.  United States.  https://doi.org/10.1088/0004-637X/761/1/35

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                    Micelotta, Elisabetta R., Cami, Jan, Peeters, Els, Fanchini, Giovanni, Jones, Anthony P., and Bernard-Salas, Jeronimo. 2012.  
        "THE FORMATION OF COSMIC FULLERENES FROM AROPHATIC CLUSTERS".  United States.  https://doi.org/10.1088/0004-637X/761/1/35.

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@article{osti_22143624,

  title        = {THE FORMATION OF COSMIC FULLERENES FROM AROPHATIC CLUSTERS},

  author       = {Micelotta, Elisabetta R. and Cami, Jan and Peeters, Els and Fanchini, Giovanni and Jones, Anthony P. and Bernard-Salas, Jeronimo},

  abstractNote = {Fullerenes have recently been identified in space and they may play a significant role in the gas and dust budget of various astrophysical objects including planetary nebulae (PNe), reflection nebulae, and H II regions. The tenuous nature of the gas in these environments precludes the formation of fullerene materials following known vaporization or combustion synthesis routes even on astronomical timescales. We have studied the processing of hydrogenated amorphous carbon (a-C:H or HAC) nanoparticles and their specific derivative structures, which we name ''arophatics'', in the circumstellar environments of young, carbon-rich PNe. We find that UV-irradiation of such particles can result in the formation of fullerenes, consistent with the known physical conditions in PNe and with available timescales.},

  doi          = {10.1088/0004-637X/761/1/35},

  url          = {https://www.osti.gov/biblio/22143624},
  journal      = {Astrophysical Journal},

  issn         = {0004-637X},

  number       = 1,

  volume       = 761,

  place        = {United States},

  year         = {Mon Dec 10 00:00:00 EST 2012},

  month        = {Mon Dec 10 00:00:00 EST 2012}

}

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