Volume 402, Number 2, May I 2003
|Page(s)||L13 - L16|
|Published online||14 April 2003|
Letter to the Editor
Possible contribution of olefins and heteroatoms to the Unidentified Infrared Bands
Service d'Astrophysique and Service de Chimie Moléculaire, CEA Saclay, 91191 Gif-sur-Yvette, France
Corresponding author: email@example.com
Accepted: 12 March 2003
The current assignments of the 11.3-μm feature are dicussed. An unbiased survey of correlation charts suggests that the olefinic group R2C = CH2 is a good alternative candidate. For the 12.7-μm feature, the best fits are provided by nitrites, R-O-N = O, and amines, R-N = H2. Sulfones, SO2, exhibit strong features near 7.7 and 8.6 μm, which may contribute to the UIBs. These additional functional groups are likely to be attached to the main hydrocarbon dust skeleton previously hypothesized.
Key words: ISM: dust, lines and bands, molecules / infrared / astrochemistry
© ESO, 2003
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.