A new TiO line list

Details A new TiO line list A new TiO line list

Sep 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998a%26a...337..495p&link_type=abstract

Astronomy and Astrophysics, v.337, p.495-500 (1998)

Astronomy and Astrophysics

Astrophysics

77

Molecular Data, Stars: Atmospheres, Stars: Late-Type

Scientific paper

A new line list for 9 electronic transitions of TiO (alpha , beta , gamma , gamma ', delta , epsilon , phi , a-f, and E-B) is presented and made publicly available. It is the latest and much improved version of a suite of TiO line lists inaugurated in Plez et al. (1992). It includes the transition moments of Langhoff (1997) and provides a better match to both high- and low-resolution spectra of cool stars than any previous extensive TiO line list. It is shown to be adequate for most purposes in stellar atmosphere modelling and spectroscopy. The line strengths appear to match observations very well, except for a mismatch of the delta band system, when using Langhoff's transition moment. It appears too strong in the calculations. It would be very valuable to perform accurate lifetime and branching ratios measurements for the delta and phi transitions.

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