Observation of ice mantles toward HD 29647

Journal Article · Sun May 01 04:00:00 EDT 1983 · Astrophys. J., Lett. Ed.; (United States)

DOI:https://doi.org/10.1086/184026· OSTI ID:5910695

Goebel, J H

The water ice adsorption band at 3.1 ..mu..m has been observed in HD 29647, which is a late B type star with an anomalous ultraviolet extinction curve. The interpretation is that these mantles are responsible for suppressing the 2200 A interstellar absorption feature. This is the first observation of both the 2200 A region and the 3.1 ..mu..m interstellar absorption feature toward the same star. A comparison of recent UV laboratory data of water ice with the UV spectrum of HD 29647 further supports the presence of water ice mantles in the same column density as that observed in the infrared. The diffusion interstellar features have been reported to be weakened in this star, consistent with their origin being on grain core surfaces, rather than in mantles or gaseous molecules.

• OSTI ID: 5910695
• Journal Information: Astrophys. J., Lett. Ed.; (United States), Journal Name: Astrophys. J., Lett. Ed.; (United States) Vol. 268:1; ISSN AJLEA
• Country of Publication: United States
• Language: English

Related Subjects

640105* -- Astrophysics & Cosmology-- Galaxies
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ABSORPTION SPECTRA
CHEMISTRY
COSMOCHEMISTRY
ELECTROMAGNETIC RADIATION
HYDROGEN COMPOUNDS
ICE
INFRARED SPECTRA
INTERSTELLAR GRAINS
OXYGEN COMPOUNDS
PARTICLES
RADIATIONS
SPECTRA
STARS
ULTRAVIOLET RADIATION
WATER