Journal
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
Volume 493, Issue 2, Pages 1531-1545Publisher
OXFORD UNIV PRESS
DOI: 10.1093/mnras/staa229
Keywords
molecular data; planets and Satellites: atmospheres; stars: atmosphere; stars: carbon
Categories
Funding
- UK Science and Technology Research Council (STFC) [ST/R000476/1]
- BIS National E-infrastructure capital grant [ST/J005673/1]
- STFC [ST/H008586/1, ST/K00333X/1]
- European Union [776403]
- STFC [ST/R001014/1, ST/T001569/1, ST/T001348/1, ST/V002384/1, ST/V002376/1, ST/M007073/1, ST/R00689X/1, ST/R001049/1, ST/P003400/1, ST/S003916/1, ST/M007006/1, ST/T001372/1, ST/T001550/1, ST/R000476/1, ST/S003762/1, ST/P002447/1, ST/P000673/1, ST/R001006/1, ST/R000832/1, ST/M006530/1, ST/M006948/1, ST/V002635/1, ST/M007618/1] Funding Source: UKRI
- Science and Technology Facilities Council [ST/R000476/1] Funding Source: researchfish
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A new ro-vibrational line list for the ground electronic state of the main isotopologue of acetylene, (C2H2)-C-12, is computed as part of the ExoMol project. The aCeTY line list covers the transition wavenumbers up to 10 000 cm(-1) (lambda > 1 mu m), with lower and upper energy levels up to 12 000 and 22 000 cm(-1) considered, respectively. The calculations are performed up to a maximum value for the vibrational angular momentum, K-max = L-max = 16, and maximum rotational angular momentum, J = 99. Higher values of J were not within the specified wavenumber window. The aCeTY line list is considered to be complete up to 2200 K, making it suitable for use in characterizing high-temperature exoplanet or cool stellar atmospheres. Einstein-A coefficients, which can directly be used to calculate intensities at a particular temperature, are computed for 4.3 billion (4 347 381 911) transitions between 5 million (5 160803) energy levels. We make comparisons against other available data for (C2H2)-C-12, and demonstrate this to be the most complete line list available. The line list is available in electronic form from the online CDS and ExoMol data bases.
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