MARVEL Analysis of the Measured High-resolution Spectra of 12C16O
The Measured Active Rotational–Vibrational Energy Levels (MARVEL) algorithm is used to determine accurate empirical rotational–vibrational energy levels for the ground electronic state of the diatomic ^12 C ^16 O molecule. 2293 energy levels have been obtained through a careful analysis of lines mea...
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IOP Publishing
2025-01-01
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| Online Access: | https://doi.org/10.3847/1538-4365/ada3c9 |
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| author | Salman Mahmoud Nayla El-Kork Nariman Abu Elkher Mubarak Almehairbi Malathe Samir Khalil Tibor Furtenbacher Attila G. Császár Olga P. Yurchenko Sergey N. Yurchenko Jonathan Tennyson |
| author_facet | Salman Mahmoud Nayla El-Kork Nariman Abu Elkher Mubarak Almehairbi Malathe Samir Khalil Tibor Furtenbacher Attila G. Császár Olga P. Yurchenko Sergey N. Yurchenko Jonathan Tennyson |
| author_sort | Salman Mahmoud |
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| description | The Measured Active Rotational–Vibrational Energy Levels (MARVEL) algorithm is used to determine accurate empirical rotational–vibrational energy levels for the ground electronic state of the diatomic ^12 C ^16 O molecule. 2293 energy levels have been obtained through a careful analysis of lines measured and assigned in high-resolution experimental spectra reported previously in 68 publications. Out of the 19,399 (7955) measured (unique) transitions in the limited wavenumber range of 0–14,470 cm ^−1 , an analysis of the resulting experimental spectroscopic network (SN) validates 19,219 (7795), and only 11 transitions had to be deleted from the SN assembled (note that transitions within floating components of the SN cannot be validated). The measured transitions span states with vibrational and rotational quantum numbers less than or equal to 41 and 123, respectively, with the highest validated energy level lying at 67,148.1 cm ^−1 . The validation procedure covers all transitions with a one-photon absorption intensity larger than 10 ^−30 cm molecule ^−1 at 296 K. The validated line centers and the empirical rovibrational energy levels of ^12 C ^16 O, with appropriate uncertainties and assignments, are provided in the appendix to this paper. Detailed comparisons are made with several existing data sets, such as the Kurucz and the HITRAN databases, NIST-certified wavelengths, and the list of lines protected by the International Astronomical Union, revealing occasional discrepancies. |
| format | Article |
| id | doaj-art-ef5714bf18924c36a0e04e60f6ead0d2 |
| institution | Kabale University |
| issn | 0067-0049 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | The Astrophysical Journal Supplement Series |
| spelling | doaj-art-ef5714bf18924c36a0e04e60f6ead0d22025-02-05T13:50:13ZengIOP PublishingThe Astrophysical Journal Supplement Series0067-00492025-01-0127626610.3847/1538-4365/ada3c9MARVEL Analysis of the Measured High-resolution Spectra of 12C16OSalman Mahmoud0Nayla El-Kork1https://orcid.org/0000-0002-5402-4951Nariman Abu Elkher2Mubarak Almehairbi3Malathe Samir Khalil4Tibor Furtenbacher5Attila G. Császár6Olga P. Yurchenko7Sergey N. Yurchenko8https://orcid.org/0000-0001-9286-9501Jonathan Tennyson9https://orcid.org/0000-0002-4994-5238Department of Physics, Khalifa University , Abu Dhabi, United Arab Emirates ; nayla.elkork@ku.ac.aeDepartment of Physics, Khalifa University , Abu Dhabi, United Arab Emirates ; nayla.elkork@ku.ac.aeDepartment of Physics, Khalifa University , Abu Dhabi, United Arab Emirates ; nayla.elkork@ku.ac.aeDepartment of Chemistry, Khalifa University , Abu Dhabi, United Arab EmiratesDepartment of Mechanical and Nuclear Engineering, Khalifa University , Abu Dhabi, United Arab EmiratesInstitute of Chemistry, ELTE Eötvös Loránd University , Pázmány Péter sétány 1/A, H-1117 Budapest, HungaryInstitute of Chemistry, ELTE Eötvös Loránd University , Pázmány Péter sétány 1/A, H-1117 Budapest, HungaryDepartment of Physics and Astronomy, University College London , London WC1E 6BT, UK ; j.tennyson@ucl.ac.ukDepartment of Physics and Astronomy, University College London , London WC1E 6BT, UK ; j.tennyson@ucl.ac.ukDepartment of Physics and Astronomy, University College London , London WC1E 6BT, UK ; j.tennyson@ucl.ac.ukThe Measured Active Rotational–Vibrational Energy Levels (MARVEL) algorithm is used to determine accurate empirical rotational–vibrational energy levels for the ground electronic state of the diatomic ^12 C ^16 O molecule. 2293 energy levels have been obtained through a careful analysis of lines measured and assigned in high-resolution experimental spectra reported previously in 68 publications. Out of the 19,399 (7955) measured (unique) transitions in the limited wavenumber range of 0–14,470 cm ^−1 , an analysis of the resulting experimental spectroscopic network (SN) validates 19,219 (7795), and only 11 transitions had to be deleted from the SN assembled (note that transitions within floating components of the SN cannot be validated). The measured transitions span states with vibrational and rotational quantum numbers less than or equal to 41 and 123, respectively, with the highest validated energy level lying at 67,148.1 cm ^−1 . The validation procedure covers all transitions with a one-photon absorption intensity larger than 10 ^−30 cm molecule ^−1 at 296 K. The validated line centers and the empirical rovibrational energy levels of ^12 C ^16 O, with appropriate uncertainties and assignments, are provided in the appendix to this paper. Detailed comparisons are made with several existing data sets, such as the Kurucz and the HITRAN databases, NIST-certified wavelengths, and the list of lines protected by the International Astronomical Union, revealing occasional discrepancies.https://doi.org/10.3847/1538-4365/ada3c9Molecular spectroscopyLaboratory astrophysicsMolecular physics |
| spellingShingle | Salman Mahmoud Nayla El-Kork Nariman Abu Elkher Mubarak Almehairbi Malathe Samir Khalil Tibor Furtenbacher Attila G. Császár Olga P. Yurchenko Sergey N. Yurchenko Jonathan Tennyson MARVEL Analysis of the Measured High-resolution Spectra of 12C16O The Astrophysical Journal Supplement Series Molecular spectroscopy Laboratory astrophysics Molecular physics |
| title | MARVEL Analysis of the Measured High-resolution Spectra of 12C16O |
| title_full | MARVEL Analysis of the Measured High-resolution Spectra of 12C16O |
| title_fullStr | MARVEL Analysis of the Measured High-resolution Spectra of 12C16O |
| title_full_unstemmed | MARVEL Analysis of the Measured High-resolution Spectra of 12C16O |
| title_short | MARVEL Analysis of the Measured High-resolution Spectra of 12C16O |
| title_sort | marvel analysis of the measured high resolution spectra of 12c16o |
| topic | Molecular spectroscopy Laboratory astrophysics Molecular physics |
| url | https://doi.org/10.3847/1538-4365/ada3c9 |
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