A5031315833- Spectroscopy and Laser Applications
- Atmospheric Ozone and Climate
- Stellar, planetary, and galactic studies
- Advanced Chemical Physics Studies
- Atmospheric and Environmental Gas Dynamics
- Astronomy and Astrophysical Research
- SAS software applications and methods
- Engineering Applied Research
- Molecular Spectroscopy and Structure
- Astrophysics and Star Formation Studies
- Scientific Measurement and Uncertainty Evaluation
- Astronomical Observations and Instrumentation
- Advanced Combustion Engine Technologies
- Nuclear and radioactivity studies
University College London
2024-2025
UNSW Sydney
2023-2024
The ExoMol database (www.exomol.com) provides molecular data for spectroscopic studies of hot atmospheres. These are widely used to model atmospheres exoplanets, cool stars and other astronomical objects, as well a variety terrestrial applications. 2024 release reports the current status which contains recommended line lists 91 molecules 224 isotopologues giving total almost 1012 individual transitions. New features include extensive "MARVELization" allow them be high resolutions studies,...
Abstract The best molecular line lists for astrophysical applications today require both high accuracy of positions strong lines as well overall completeness. former is required to enable, example, detection in high-resolution cross-correlation observations exoplanets, while completeness accurate spectroscopic and radiative properties over broad temperature spectral ranges. use empirical energies generated with the Marvel procedure a standard way improve accuracy; here we explore methods...
ABSTRACT Imidogen (NH) is a reactive molecule whose presence in astrochemical environments of interest due to its role the formation nitrogen-containing molecules and as potential probe nitrogen abundance. Spectroscopic NH monitoring useful for Earth-based combustion photolysis processes ammonia other species. also relevant ultracold molecular physics plasma studies. To enable these diverse applications, high-quality spectroscopic data are required. Here, new line list with significant...
Photodissociation cross sections of NH for 250 > λ 100 nm are studied using (i) the recently reported spectroscopic model five lowest electronic states NH, (ii) a new set ab initio potential energy, (transition) dipole moment, spin–orbit, and angular momentum curves covering region up to 000 cm−1, (iii) suggested approach time-independent calculations continuum spectra molecules (Pezzella et al., 2022). Quasi-dissociative properties, including predissociation lifetimes linewidths, c1Π...
Zirconium monoxide (ZrO) absorption lines define rare S-type stars and are currently being sought on exoplanets. Successful detection is dependent an accurate comprehensive line list, with existing data not ideal for many applications. Specifically, the Plez \etal{} list near-complete but has insufficient accuracy high-resolution cross-correlation, while Sorensen \& Bernath high only considers a small number of spectral bands. This article presents novel spectroscopic model, variational...
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ABSTRACT A theoretical line list for $^{15}$NH$_3$ CoYuTe-15 is presented based on the empirical potential energy and ab initio dipole moments surfaces developed used production of ExoMol CoYuTe $^{14}$NH$_3$. The ro-vibrational levels wavefunctions are computed using variational program trove. ranges up to 10 000 cm$^{-1}$ ($\lambda \ge 1$ μm) contains 929 795 249 transitions between 1 269 961 states with $J\le 30$. should be applicable temperatures $\sim$1000 K. To improve accuracy...
Imidogen (NH) is a reactive molecule whose presence in astrochemical environments of interest due to its role the formation nitrogen-containing molecules and as potential probe nitrogen abundance. Spectroscopic NH monitoring useful for Earth-based combustion photolysis processes ammonia other species. also relevant ultracold molecular physics plasma studies. To enable these diverse applications, high-quality spectroscopic data required. Here, new line list with significant advantages over...
The ExoMol database (www.exomol.com) provides molecular data for spectroscopic studies of hot atmospheres. These are widely used to model atmospheres exoplanets, cool stars and other astronomical objects, as well a variety terrestrial applications. 2024 release reports the current status which contains recommended line lists 91 molecules 224 isotopologues giving total almost 10$^{12}$ individual transitions. New features include extensive "MARVELization" allow them be high resolutions...
The best molecular line lists for astrophysical applications today require both high accuracy of positions strong lines as well overall completeness. former is required to enable, example, detection in high-resolution cross-correlation observations exoplanets, while completeness accurate spectroscopic and radiative properties over broad temperature spectral ranges. use empirical energies generated with the Marvel procedure a standard way improve accuracy; here we explore methods extending...