A Laboratory Analog for the Carrier of the 3 Micron Emission of the Protoplanetary Nebula IRAS 05341+0852 | Zendy

L. W. Beegle | Zendy; Thomas J. Wdowiak | Zendy; Kenneth M. Arnoult | Zendy

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A Laboratory Analog for the Carrier of the 3 Micron Emission of the Protoplanetary Nebula IRAS 05341+0852

Author(s) -

L. W. Beegle,

Thomas J. Wdowiak,

Kenneth M. Arnoult

Publication year - 1997

Publication title -

the astrophysical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.376

H-Index - 489

eISSN - 1538-4357

pISSN - 0004-637X

DOI - 10.1086/310841

Subject(s) - acenaphthene , physics , acenaphthylene , astrophysics , nebula , protoplanetary disk , protoplanetary nebula , astronomy , absorption (acoustics) , wavelength , astrobiology , stars , optics , phenanthrene , pyrene

A mixture of the polycyclic aromatic hydrocarbons (PAHs), acenaphthylene and acenaphthene, when subjected to the energetic environment of a hydrogen plasma, is transformed into a material that exhibits an infrared absorption profile in the 3 micron region that is an excellent match of the protoplanetary nebula IRAS 05341+0852 emission profile in the same wavelength region. Acenaphthylene and acenaphthene were chosen as precursors in the experiment because these molecules have a structure that can be described as a keystone in a process in which carbon atoms in a stellar wind condense into PAH species. The spectral match between experiment and observations appears to validate that scenario.

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