Advances in Astronomy and Space Physics, Volume 2, Issue 1 (2012)
Ammonia molecule and its applications in astrophysics
1Main Astronomical Observatory of the National Academy of Sciences of Ukraine, Zabolotnoho 27, 03680, Kyiv, Ukraine
2Centre for Astrophysics Research, University of Hertfordshire, College Lane, Hatfield, Hertfordshire AL10 9AB, UK
3Department of Physics and Astronomy, University College London, Gower Street, WC1E 6BT London, UK
2Centre for Astrophysics Research, University of Hertfordshire, College Lane, Hatfield, Hertfordshire AL10 9AB, UK
3Department of Physics and Astronomy, University College London, Gower Street, WC1E 6BT London, UK
Abstract
Recently a new ammonia line list BYTe was reported comprising more than 1.1 billion transitions and designed for temperatures up to 1500 K. In this study we present an application of this line list for modelling spectra of cool star. We generated oscillator strengths of NH3 using BYTe for a frequency range of 1-5 μm and applied it for computing synthetic spectra of cool carbon giants using the WITA program. A possibility of detection of ammonia in spectra of cool carbon giants is discussed.
Keywords:
molecular data; stars: atmospheres; stars: late-type