Imaging of a Circumsolar Dust Ring Near the Orbit of Venus

被引：27

作者：

Jones, M. H. ^{[1
]}

Bewsher, D. ^{[2
]}

Brown, D. S. ^{[2
]}

机构：

[1] Open Univ, Dept Phys Sci, Milton Keynes MK7 6AA, Bucks, England

[2] Univ Cent Lancashire, Jeremiah Horrocks Inst, Preston PR1 2HE, Lancs, England

来源：

SCIENCE | 2013年 / 342卷 / 6161期

关键词：

SOLAR-SYSTEM; HELIOSPHERIC IMAGERS; RESONANT SIGNATURES; STEREO MISSION; ZODIACAL CLOUD; DEBRIS DISKS; MODEL; COMETARY; SEARCH; ORIGIN;

D O I：

10.1126/science.1243194

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

The gravitational interaction of dust in the zodiacal cloud with individual planets is expected to give rise to ringlike features: Such a circumsolar ring has been observed associated with Earth, but such resonance rings have not been confirmed to exist for other planets. Here, we report on sensitive photometric observations, based on imaging from the STEREO mission, that confirm the existence of a dust ring at the orbit of Venus. The maximum overdensity of dust in this ring, compared to the zodiacal cloud, is similar to 10%. The radial density profile of this ring differs from the model used to describe Earth's ring in that it has two distinct steplike components, with one step being interior and the other exterior to the orbit of Venus.

引用

页码：960 / 963

页数：4

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