Keywords
astrochemistry
methods: numerical
molecular data
software: simulations
Astrophysics - Astrophysics of Galaxies
methods: numerical
molecular data
software: simulations
Astrophysics - Astrophysics of Galaxies
How to Cite
Recent Update of Gas-Phase Chemical Reactions and Molecular Lines of TiO in Cloudy. (2024). Revista Mexicana De Astronomía Y Astrofísica, 60(2), 373-379. https://doi.org/10.22201/ia.01851101p.2024.60.02.15
Abstract
We present our current update on the gas-phase chemical reactions and spectral lines of TiO in the spectral synthesis code Cloudy. For this purpose, we have added 229 Ti-related reactions in the chemical network. In addition, we consider 230 fine-structure energy levels, the corresponding 223 radiative transitions, and 444 collisional transitions with ortho and para H2 , and predict 66 TiO lines. We perform spectroscopic simulations of TiO emission from the circumstellar region of the oxygen-rich red supergiant VY Canis Majoris to validate our update. Our model reproduces the observed TiO column density. This update is helpful in modeling dust-free astrophysical environments where Ti is in the gas phase and TiO can form.Similar Articles
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