Datum
2023-07-20Autor
Marder, LutzBreier, Alexander AxelOliveira, Nelson deReiß, PhilippOzga, ChristianKüstner-Wetekam, CatmarnaGiesen, ThomasNahon, LaurentHans, AndreasKnie, AndréEhresmann, ArnoSchmidt, PhilippSchlagwort
530 Physik 620 Ingenieurwissenschaften UltraviolettspektroskopieMolekülspektroskopieFotoionisationInterstellares MolekülFluoreszenzAbsorptionMetadata
Zur Langanzeige
Aufsatz
Vibrationally Resolved Absorption and Fluorescence Cross Sections of Adamantane in the Far-ultraviolet Spectral Range on an Absolute Scale
Zusammenfassung
High-resolution absorption, dispersed fluorescence emission, and photoionization cross sections are presented for gas-phase adamantane excited by synchrotron radiation in the exciting-photon energy range of 6–30 eV. Relative and absolute absorption cross sections of so-far unmatched resolution of down to 0.27 cm−¹ line width in the region from 6.4–28 eV are shown along with newly discovered vibronic substructures around the HOMO–LUMO transition. Absorption line positions are provided with very high accuracy and listed in tabular form to be used as spectral fingerprints for the detection of adamantane in interstellar media, where its column density may be determined via the absolute cross sections. The fluorescence emission lies in the ultraviolet range from 190–250 nm and is excited starting at the HOMO–LUMO transition at 6.49 eV, which corresponds to the highest fluorescence emission energy. Hitherto unreported fluorescence in the same spectral range and relative photoionization cross sections in the exciting-photon energy range up to 30 eV are also presented along with lifetime measurements for differentiation of the involved electronic states.
Zitierform
In: The Astrophysical Journal Supplement Volume 267 / Number 2 (2023-07-20) eissn:1538-4365Förderhinweis
Gefördert durch den Publikationsfonds der Universität KasselZitieren
@article{doi:10.17170/kobra-202309118758,
author={Marder, Lutz and Breier, Alexander Axel and Oliveira, Nelson de and Reiß, Philipp and Ozga, Christian and Küstner-Wetekam, Catmarna and Giesen, Thomas and Nahon, Laurent and Hans, Andreas and Knie, André and Ehresmann, Arno and Schmidt, Philipp},
title={Vibrationally Resolved Absorption and Fluorescence Cross Sections of Adamantane in the Far-ultraviolet Spectral Range on an Absolute Scale},
journal={The Astrophysical Journal Supplement},
year={2023}
}
0500 Oax 0501 Text $btxt$2rdacontent 0502 Computermedien $bc$2rdacarrier 1100 2023$n2023 1500 1/eng 2050 ##0##http://hdl.handle.net/123456789/15105 3000 Marder, Lutz 3010 Breier, Alexander Axel 3010 Oliveira, Nelson de 3010 Reiß, Philipp 3010 Ozga, Christian 3010 Küstner-Wetekam, Catmarna 3010 Giesen, Thomas 3010 Nahon, Laurent 3010 Hans, Andreas 3010 Knie, André 3010 Ehresmann, Arno 3010 Schmidt, Philipp 4000 Vibrationally Resolved Absorption and Fluorescence Cross Sections of Adamantane in the Far-ultraviolet Spectral Range on an Absolute Scale / Marder, Lutz 4030 4060 Online-Ressource 4085 ##0##=u http://nbn-resolving.de/http://hdl.handle.net/123456789/15105=x R 4204 \$dAufsatz 4170 5550 {{Ultraviolettspektroskopie}} 5550 {{Molekülspektroskopie}} 5550 {{Fotoionisation}} 5550 {{Interstellares Molekül}} 5550 {{Fluoreszenz}} 5550 {{Absorption}} 7136 ##0##http://hdl.handle.net/123456789/15105
2023-10-06T13:31:11Z 2023-10-06T13:31:11Z 2023-07-20 doi:10.17170/kobra-202309118758 http://hdl.handle.net/123456789/15105 Gefördert durch den Publikationsfonds der Universität Kassel eng Namensnennung 4.0 International http://creativecommons.org/licenses/by/4.0/ ultraviolet surveys ultraviolet spectroscopy high resolution spectroscopy molecular spectroscopy photoionization interstellar molecules 530 620 Vibrationally Resolved Absorption and Fluorescence Cross Sections of Adamantane in the Far-ultraviolet Spectral Range on an Absolute Scale Aufsatz High-resolution absorption, dispersed fluorescence emission, and photoionization cross sections are presented for gas-phase adamantane excited by synchrotron radiation in the exciting-photon energy range of 6–30 eV. Relative and absolute absorption cross sections of so-far unmatched resolution of down to 0.27 cm−¹ line width in the region from 6.4–28 eV are shown along with newly discovered vibronic substructures around the HOMO–LUMO transition. Absorption line positions are provided with very high accuracy and listed in tabular form to be used as spectral fingerprints for the detection of adamantane in interstellar media, where its column density may be determined via the absolute cross sections. The fluorescence emission lies in the ultraviolet range from 190–250 nm and is excited starting at the HOMO–LUMO transition at 6.49 eV, which corresponds to the highest fluorescence emission energy. Hitherto unreported fluorescence in the same spectral range and relative photoionization cross sections in the exciting-photon energy range up to 30 eV are also presented along with lifetime measurements for differentiation of the involved electronic states. open access Marder, Lutz Breier, Alexander Axel Oliveira, Nelson de Reiß, Philipp Ozga, Christian Küstner-Wetekam, Catmarna Giesen, Thomas Nahon, Laurent Hans, Andreas Knie, André Ehresmann, Arno Schmidt, Philipp doi:10.3847/1538-4365/acd9b4 Ultraviolettspektroskopie Molekülspektroskopie Fotoionisation Interstellares Molekül Fluoreszenz Absorption publishedVersion eissn:1538-4365 Number 2 The Astrophysical Journal Supplement Volume 267 false
Die folgenden Lizenzbestimmungen sind mit dieser Ressource verbunden: