Calcium triplet explained
The infrared Ca II triplet, commonly known as the calcium triplet, is a triplet of three ionised calcium spectral lines at the wavelengths of 8498 Å, 8542 Å and 8662 Å (measured in air). The triplet has a strong emission,[1] and is most prominently observed in the absorption of spectral type G, K and M stars.[2] [3] [4]
See also
Notes and References
- Polidan, R. S.. On the Detection of Binary be Stars. 1976. Be and Shell Stars: IAU Symposium No. 70. 70. 405. 1976IAUS...70..401P.
- Web site: Andretta. Busà. Gomez. Terranegra. 2005. The Ca II Infrared Triplet as a stellar activity diagnostic. Astronomy & Astrophysics. 669.
- Web site: Jonathan Tennyson . Astronomical Spectroscopy. An introduction to the atomic and molecular physics in astronomical spectra . 2005 . . 94 . 2016-07-09 . https://web.archive.org/web/20160116131018/http://www.ursusmajor.ch/downloads/analysis-and-interpretation-of-astronomical-sp.pdf# . 2016-01-16 . dead.
- Web site: G. Kordopatis, A. Recio-Blanco, P. de Laverny, A. Bijaoui, V. Hill, G. Gilmore, R. F. G. Wyse and C. Ordenovic . Automatic stellar spectra parameterisation in the IR Ca ii triplet region . 2011 . Astronomy & Astrophysics . 535, A106 . https://www.aanda.org/articles/aa/pdf/2011/11/aa17372-11.pdf . 2011-11-21 . dead.
