Ice mantles and the anomalous ultraviolet extinction of HD 29647
Open Access
- 1 September 1981
- journal article
- Published by Oxford University Press (OUP) in Monthly Notices of the Royal Astronomical Society
- Vol. 196 (1) , 81P-85P
- https://doi.org/10.1093/mnras/196.1.81p
Abstract
HD 29647, a reddened early-type star in the Taurus dark cloud, was shown by Snow & Seab to have anomalously weak absorption in the λ 2200 feature. In this contribution, complementary infrared (1–4 µm) observations are presented. Results indicate that the anomaly cannot be explained by ice mantle formation on the grains. Chemical processing of graphite grains is proposed as an alternative explanation.Keywords
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