| タイトル | The grains and gas in Comet Bowell 1980b |
| 著者（英） | Ahearn, M. F.; Feldman, P. D.; Schleicher, D. G.; Millis, R. L.; Tokunaga, A. T.; Dwek, E.; Thompson, D. T. |
| 著者所属（英） | NASA Goddard Space Flight Center|Lowell Observatory |
| 発行日 | 1983-01-01 |
| 言語 | eng |
| 内容記述 | The importance of coordinating different types of observations of a comet is illustrated in terms of spectral data on Comet Bowell. Photometric data in 1980 indicated that OH emissions were occurring when the comet was still more than 4 AU from the sun. Further measurements were arranged with the IUE satellite, the photoelectric scanner at Cerro Tololo and the IR telescope on Mauna Kea. Several sizes of diaphragms were used in order to estimate variations with respect to aperture. Calculations were made to quantify the wavelengths observed as a function of the grains' cross-sections. The OH emission was confirmed by the spectrographic and photometric data. It is suggested that sufficient dark materials are present on the cometary surface to have enhanced the absorption of solar radiation to levels sufficient for heating and dissociating surface ice particles. |
| NASA分類 | ASTROPHYSICS |
| レポートNO | 84A39971 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/397380 |
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