| タイトル | Optical and near-IR imaging observations of comet Austin 1989c1 |
| 著者（英） | Aoki, TE.; Hatsukade, I.; Sugai, H.; Takagishi, K.; Isobe, S.; Hiromoto, N.; Sasaki, G.; Takami, H.; Watanabe, J.; Nakamura, T. |
| 著者所属（英） | Tokyo Astronomical Observatory |
| 発行日 | 1990-01-01 |
| 言語 | eng |
| 内容記述 | Near-nucleus imaging observations of comet Austin (1989c1) were carried out by the Japanese CCD imaging team. Six telescopes were used to monitor the time variation of the near-nucleus images in C2, CN, H2O, and Na continuum in the optical region, and in J, H, and K bands in the near-IR region. A featureless, round shape of the comet was revealed in all images. Although some of the jet features are recognized by using an image enhancement technique, the azimuthal difference of the intensity distribution is about 10 percent. The images in the H2O band show complex ion structures near the nucleus. |
| NASA分類 | ASTROPHYSICS |
| レポートNO | 91N21015 |
| 権利 | No Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/232339 |
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