| タイトル | Shape, Density, and Geology of the Nucleus of Comet 103P/Hartley 2 |
| 本文（外部サイト） | http://hdl.handle.net/2060/20140009994 |
| 著者（英） | Carcich, Brian T.; Belton, Michael J. S.; Thomas, P.C.; Melosh, H. Jay; Richardson, James E.; Klaasen, Kenneth P.; Schultz, Peter H.; Hermalyn, Brendan; Belton, Michael J. S.; Li, Jian-Yang; Meech, Karen; A'hearn, Michael F.; McFadden, Lucy A.; Groussin, Olivier; Besse, Sebastien; Kissel, Jochen; Farnham, Tony L.; Lindler, Don J.; Lisse, Carey M.; Veverka, Joseph |
| 著者所属（英） | NASA Goddard Space Flight Center |
| 発行日 | 2013-02-01 |
| 言語 | eng |
| 内容記述 | Data from the Extrasolar Planet Observation and Deep Impact Extended Investigation (EPOXI) mission show Comet 103P/Hartley 2 is a bi-lobed, elongated, nearly axially symmetric comet 2.33 km in length. Surface features are primarily small mounds <40 m across, irregularly-shaped smooth areas on the two lobes, and a smooth but variegated region forming a waist between the two lobes. Assuming parts of the comet body approach the shape of an equipotential surface, the mean density of Hartley 2 is modeled to be 200400 kg /cubic m.. Such a mean density suggests mass loss per orbit of >1%. The shape may be the evolutionary product of insolation, sublimation, and temporary deposition of materials controlled by the objects complex rotation. |
| NASA分類 | Lunar and Planetary Science and Exploration |
| レポートNO | GSFC-E-DAA-TN9202 |
| 権利 | Copyright, Distribution as joint owner in the copyright |
|
