Academic Journal
Variegation and space weathering on asteroid 21 Lutetia
| العنوان: | Variegation and space weathering on asteroid 21 Lutetia |
|---|---|
| المؤلفون: | Schröder, S.E., Keller, H. U., Mottola, S., Scholten, F., Preusker, Frank, Matz, K.-D., Hviid, S. |
| بيانات النشر: | Elsevier |
| سنة النشر: | 2015 |
| المجموعة: | German Aerospace Center: elib - DLR electronic library |
| مصطلحات موضوعية: | Planetengeologie, Asteroiden und Kometen, Planetengeodäsie |
| الوصف: | During the flyby in 2010, the OSIRIS camera on-board Rosetta acquired hundreds of high-resolution images of asteroid Lutetia's surface through a range of narrow-band filters. While Lutetia appears very bland in the visible wavelength range, Magrin et al. (2012) tentatively identified UV color variations in the Baetica cluster, a group of relatively young craters close to the north pole. As Lutetia remains a poorly understood asteroid, such color variations may provide clues to the nature of its surface. We take the color analysis one step further. First we orthorectify the images using a shape model and improved camera pointing, then apply a variety of techniques (photometric correction, principal component analysis) to the resulting color cubes. We characterize variegation in the Baetica crater cluster at high spatial resolution, identifying crater rays and small, fresh impact craters. We argue that at least some of the color variation is due to space weathering, which makes Lutetia's regolith redder and brighter. |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | application/pdf |
| اللغة: | English |
| Relation: | https://elib.dlr.de/97132/1/2015%20Schr%C3%B6der%20et%20al.pdf; Schröder, S.E. und Keller, H. U. und Mottola, S. und Scholten, F. und Preusker, Frank und Matz, K.-D. und Hviid, S. (2015) Variegation and space weathering on asteroid 21 Lutetia. Planetary and Space Science, 117, Seiten 236-245. Elsevier. doi:10.1016/j.pss.2015.06.018 . ISSN 0032-0633. |
| الاتاحة: | https://elib.dlr.de/97132/ https://elib.dlr.de/97132/1/2015%20Schr%C3%B6der%20et%20al.pdf http://www.sciencedirect.com/science/article/pii/S0032063315001968 |
| Rights: | cc_by_nc_nd |
| رقم الانضمام: | edsbas.3C1300B6 |
| قاعدة البيانات: | BASE |
| الوصف غير متاح. |