Infra-red Colours of G, K and M Stars
Open Access
- 1 March 1969
- journal article
- Published by Oxford University Press (OUP) in Monthly Notices of the Royal Astronomical Society
- Vol. 143 (1) , 73-77
- https://doi.org/10.1093/mnras/143.1.73
Abstract
The results of intermediate band photometry of late-type stars in the infra-red indicate that the continuous radiation of these stars deviates noticeably from that of black bodies. An emission peak near 1.6 μ was observed in agreement with other observations. It is suggested that the prominence of the 1.6 μ peak is a result of a combination of H – and H 2– on the one hand and H 2 O on the other as sources of continuous opacities. In G and K stars, this feature is primarily caused by H – and H 2– . In the M stars it is predominantly caused by H 2 O, but the contribution of H – and H 2– tends to enhance this feature over other peaks that are also caused by H 2 O.Keywords
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