| タイトル | CO formation in the metal-rich ejecta of SN 1987A |
| 著者（英） | Allen, J. E., Jr.; Nuth, J. A., III; Petuchowski, S. J.; Dwek, E. |
| 著者所属（英） | NASA Goddard Space Flight Center |
| 発行日 | 1989-07-01 |
| 言語 | eng |
| 内容記述 | A model for the formation of CO in the expanding ejecta of SN 1987A suggests that the 4.6-micron and 2.3 micron emissions noted in the SN spectrum may originate from the inner metal-rich regions of the ejecta. Also reported are the assignment of a 2.26-micron excess feature in the high-resolution IR spectra to the v = 2 to 0 overtone of CO(+) and the possible identification of a 2.95-micron feature with the v = 2 to 0 transition of electronically excited CO. The results suggest that the regions in which CO formation takes place must be ionized to a substantially lower degree than regions which dominate the line emission of heavier metals. |
| NASA分類 | ASTROPHYSICS |
| レポートNO | 89A44931 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/362618 |
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