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  1. Home
  2. Indian Institute of Technology Madras
  3. Publication2
  4. Multiphoton ionization and dissociation of polycyclic aromatic hydrocarbon molecules of astrophysical interest
 
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Multiphoton ionization and dissociation of polycyclic aromatic hydrocarbon molecules of astrophysical interest

Date Issued
01-03-2022
Author(s)
Chacko, Roby
Barik, Saroj
Banhatti, Shreyak
Aravind G 
Indian Institute of Technology, Madras
DOI
10.1103/PhysRevA.105.032804
Abstract
The photoprocessing of astrophysically relevant small polycyclic aromatic hydrocarbon (PAH) molecules, namely, anthracene, phenanthrene, and pentacene, under intense UV field is experimentally studied to explore the formation of smaller ions upon their dissociative ionization and the effect of their size and structure on the dynamics of dissociative ionization. The molecules are UV processed in the multiphoton regime using a 266-nm nanosecond laser pulse. The dissociative ionization spectra at different laser intensities reveal distinct dissociation dynamics of these PAHs based on their size and structures.
Volume
105
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