| タイトル | Whole earth telescope observations of the white dwarf G29-38 - Phase variations of the 615 second period |
| 著者（英） | Clemens, J. C.; Hine, B. P.; Nather, R. E.; Bradley, P. A.; Claver, C. F.; Robinson, E. L.; Kleinman, S. J.; Provencal, J.; Wood, M. A.; Winget, D. E. |
| 著者所属（英） | McDonald Observatory|NASA Ames Research Center|Texas Univ. |
| 発行日 | 1990-07-10 |
| 言語 | eng |
| 内容記述 | An extensive set of high-speed photometric observations obtained with the Whole Earth Telescope network is used to show that the complex light curve of the ZZ Zeti (DAV) star G29-38 is dominated by a single, constant amplitude period of 615 s during the time span of these observations. The pulse arrival times for this period exhibit a systematic variation in phase readily explained by light-travel time effects produced by reflex orbital motion about an unseen companion. The best-fit model to the observations indicates a highly eccentric orbit, a period of 109 + or - 13 days and a minimum mass of 0.5 solar mass for the companion. |
| NASA分類 | ASTROPHYSICS |
| レポートNO | 90A41808 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/355127 |
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