Light scattering properties of dust in 81P/Wild 2 comet

被引：1

作者：

Hadamcik, É ^{[1
]}

Levasseur-Regourd, AC ^{[1
]}

机构：

[1] Univ Paris 06, F-91371 Verrieres Buisson, France

来源：

COMPTES RENDUS DE L ACADEMIE DES SCIENCES SERIE IV PHYSIQUE ASTROPHYSIQUE | 2000年 / 1卷 / 01期

关键词：

comets; dust; light scattering; polarization; space probe;

D O I：

10.1016/S1296-2147(00)70016-3

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Comet 81P/Wild 2, target of the Stardust mission, has been observed in 1997, through an imaging polarimetry technique. Intensity and polarization images, retrieved for 9 000 to 26 000 km wide fields, imply a value of the decrease of the intensity with increasing distance to the nucleus, and a decrease of the polarization in the inner coma, in agreement with previous observations of other comets. The averaged polarization values have been determined for the first time on this comet. The results suggest that it could belong to the class of comets with a low polarization at large phase angles and an absence of silicate emission features. (C) 2000 Academie des sciences/Editions scientifiques et medicales Elsevier SAS.

引用

页码：127 / 133

页数：7

共 16 条

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