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Lyα irradiation of superhydrogenated coronene films: Implications for h2 formation

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Lyα irradiation of superhydrogenated coronene films : Implications for h2 formation. / Mennella, V.; Suhasaria, T.; Hornekær, L.; Thrower, J. D.; Mulas, G.

In: Astrophysical Journal Letters, Vol. 908, No. 1, L18, 02.2021.

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

Harvard

Mennella, V, Suhasaria, T, Hornekær, L, Thrower, JD & Mulas, G 2021, 'Lyα irradiation of superhydrogenated coronene films: Implications for h2 formation', Astrophysical Journal Letters, vol. 908, no. 1, L18. https://doi.org/10.3847/2041-8213/abddb9

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Author

Mennella, V. ; Suhasaria, T. ; Hornekær, L. ; Thrower, J. D. ; Mulas, G. / Lyα irradiation of superhydrogenated coronene films : Implications for h2 formation. In: Astrophysical Journal Letters. 2021 ; Vol. 908, No. 1.

Bibtex

@article{8e66f702dd1b457abd9dac46f51f9017,
title = "Lyα irradiation of superhydrogenated coronene films: Implications for h2 formation",
abstract = "We present the results of an experimental study of the interaction of Lyα photons with superhydrogenated coronene films. The effects of ultraviolet (UV) irradiation have been analyzed with infrared spectroscopy. The spectral changes provide evidence for UV photodestruction of the C-D bonds of the superhydrogenated coronene with a cross section of 8 ± 2 × 10-20 cm2. The comparison of our experimental result with the prediction from theoretical modeling suggests an extension of the region inside photodissociation regions where superhydrogenated coronene can survive and contribute to H2 formation. H2 formation through abstraction in superhydrogenated coronene dominates over direct H2 loss induced by UV photodestruction. ",
author = "V. Mennella and T. Suhasaria and L. Hornek{\ae}r and Thrower, {J. D.} and G. Mulas",
note = "Publisher Copyright: {\textcopyright} 2021. The American Astronomical Society.",
year = "2021",
month = feb,
doi = "10.3847/2041-8213/abddb9",
language = "English",
volume = "908",
journal = "The Astrophysical Journal Letters",
issn = "2041-8205",
publisher = "IOP PUBLISHING LTD",
number = "1",

}

RIS

TY - JOUR

T1 - Lyα irradiation of superhydrogenated coronene films

T2 - Implications for h2 formation

AU - Mennella, V.

AU - Suhasaria, T.

AU - Hornekær, L.

AU - Thrower, J. D.

AU - Mulas, G.

N1 - Publisher Copyright: © 2021. The American Astronomical Society.

PY - 2021/2

Y1 - 2021/2

N2 - We present the results of an experimental study of the interaction of Lyα photons with superhydrogenated coronene films. The effects of ultraviolet (UV) irradiation have been analyzed with infrared spectroscopy. The spectral changes provide evidence for UV photodestruction of the C-D bonds of the superhydrogenated coronene with a cross section of 8 ± 2 × 10-20 cm2. The comparison of our experimental result with the prediction from theoretical modeling suggests an extension of the region inside photodissociation regions where superhydrogenated coronene can survive and contribute to H2 formation. H2 formation through abstraction in superhydrogenated coronene dominates over direct H2 loss induced by UV photodestruction.

AB - We present the results of an experimental study of the interaction of Lyα photons with superhydrogenated coronene films. The effects of ultraviolet (UV) irradiation have been analyzed with infrared spectroscopy. The spectral changes provide evidence for UV photodestruction of the C-D bonds of the superhydrogenated coronene with a cross section of 8 ± 2 × 10-20 cm2. The comparison of our experimental result with the prediction from theoretical modeling suggests an extension of the region inside photodissociation regions where superhydrogenated coronene can survive and contribute to H2 formation. H2 formation through abstraction in superhydrogenated coronene dominates over direct H2 loss induced by UV photodestruction.

UR - http://www.scopus.com/inward/record.url?scp=85101410003&partnerID=8YFLogxK

U2 - 10.3847/2041-8213/abddb9

DO - 10.3847/2041-8213/abddb9

M3 - Journal article

AN - SCOPUS:85101410003

VL - 908

JO - The Astrophysical Journal Letters

JF - The Astrophysical Journal Letters

SN - 2041-8205

IS - 1

M1 - L18

ER -