Onaka, Takashi, Mori, Tamami I. and Okada, Yoko ORCID: 0000-0002-6838-6435 (2015). Dust processing in the Carina nebula region. Planet Space Sci., 116. S. 84 - 92. OXFORD: PERGAMON-ELSEVIER SCIENCE LTD. ISSN 0032-0633
Full text not available from this repository.Abstract
Dust processing in the Carina nebula is investigated based on mid-to far-infrared spectroscopy with Infrared Space Observatory (ISO). Mapping observations over a central 40' x 20' area of the nebula with PHT-S, SWS, and LWS onboard ISO not only reveal spectroscopically that the mid-infrared unidentified infrared (UIR) bands at 6.2, 7.7, 8.6, and 11.3 mu m are absent in the ionized region, but also indicate that the 11.3 mu m may behave differently from the other three UIR bands near the edge of the ionized region, suggesting a variation either in the size distribution or in the ionization fraction of the band carriers. The correlation of [NII]122 mu m and [SiII]35 mu m line emissions observed with SWS and LWS is reinvestigated based on the recent atomic data as well as the latest cosmic abundance, suggesting that a large fraction (>70%), if not all, of silicon returns to the gas phase in the Carina nebula, suggesting that silicates cannot survive under harsh conditions, such as massive star-forming regions. The present observations clearly show dust processing taking place in active regions in the Galaxy. (C) 2015 Elsevier Ltd. All rights reserved.
Item Type: | Journal Article | ||||||||||||||||
Creators: |
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URN: | urn:nbn:de:hbz:38-391195 | ||||||||||||||||
DOI: | 10.1016/j.pss.2015.03.025 | ||||||||||||||||
Journal or Publication Title: | Planet Space Sci. | ||||||||||||||||
Volume: | 116 | ||||||||||||||||
Page Range: | S. 84 - 92 | ||||||||||||||||
Date: | 2015 | ||||||||||||||||
Publisher: | PERGAMON-ELSEVIER SCIENCE LTD | ||||||||||||||||
Place of Publication: | OXFORD | ||||||||||||||||
ISSN: | 0032-0633 | ||||||||||||||||
Language: | English | ||||||||||||||||
Faculty: | Unspecified | ||||||||||||||||
Divisions: | Unspecified | ||||||||||||||||
Subjects: | no entry | ||||||||||||||||
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URI: | http://kups.ub.uni-koeln.de/id/eprint/39119 |
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