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Dario Campisi
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Classroom Contents
Delivery of PAHs in the Early Solar System: Forsterite as Space Shuttle
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- 1 Dario Campisi
- 2 Where do I come from?
- 3 Acknowledgement
- 4 Polycyclic Aromatic Hydrocarbons (PAHs are everywhere)
- 5 PAHs in the ISM (Characteristic PAHs structures in the ISM)
- 6 Molecular Astrophysics (Study PAHs to understand the universe)
- 7 PAHs as interstellar catalysts
- 8 Physical Chemistry
- 9 Density Functional Theory (Schrödinger equation contains all information to explain the physics of an unexplored system)
- 10 Astrophysical Implications (PAHs might be hydrogenated in the ISM)
- 11 Magic Numbers = HydroPAHs Mass spectra show the presence of PAHs with different
- 12 Hydrogenation Sequence (Central ring is the first to be hydrogenated)
- 13 Energy Barriers Explain Magic Numbers (Solo carbons are highly reactive)
- 14 Molecular Hydrogen Formation (Defective PAHs are more efficient catalysts)
- 15 Summary
- 16 What is Forsterite? (From ISM to solar system)
- 17 Theoretical Methods (From gas to solid state, need to use different codes)
- 18 Bulk Properties (Optimizing the Unit Cell of Forsterite)
- 19 Surface Stability (010) is the most stable forsterite surface
- 20 Creation of a Supercell (Creation of a large unit cell for hosting big PAH)
- 21 Defective 010 -Forsterite Surfaces (In nature the minerals contain defects)
- 22 Interaction on the Surface (The coordination between PAHs and Mg atoms leads to distorted structures)
- 23 Interaction with the Surface (PAH coordinates with Mg and transition metals on the surface)
- 24 to Bond or not to Bond?
- 25 Conclusions
- 26 Thank You!
- 27 Reminder!
- 28 Coming Up Next Week...
