Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2020GL089099 |
Geophysical observations of Phobos transits by InSight | |
S. C. Stä; hler; R. Widmer‐; Schnidrig; J.‐; R. Scholz; M. van Driel; A. Mittelholz; K. Hurst; C. L. Johnson; M. T. Lemmon; R. D. Lorenz; P. Lognonné; N. T. Mü; ller; L. Pou; A. Spiga; D. Banfield; S. Ceylan; C. Charalambous; J. Clinton; D. Giardini; F. Nimmo; M. Panning; W. Zü; rn; W. B. Banerdt | |
2020-08-04 | |
发表期刊 | Geophysical Research Letters |
出版年 | 2020 |
英文摘要 | Since landing on Mars, the NASA InSight lander has witnessed 8 Phobos and one Deimos transits. All transits could be observed by a drop in the solar array current and the surface temperature, but more surprisingly, for several ones, a clear signature was recorded with the seismic sensors and the magnetometer. We present a preliminary interpretation of the seismometer data as temperature induced local deformation of the ground, supported by terrestrial analog experiments and finite‐element modelling. The magnetic signature is most likely induced by changing currents from the solar arrays. While the observations are not fully understood yet, the recording of transit‐related phenomena with high sampling rate will allow more precise measurements of the transit times, thus providing additional constraints for the orbital parameters of Phobos. The response of the seismometer can potentially also be used to constrain the thermo‐elastic properties of the shallow regolith at the landing site. |
领域 | 气候变化 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/287690 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | S. C. Stä,hler,R. Widmer‐,et al. Geophysical observations of Phobos transits by InSight[J]. Geophysical Research Letters,2020. |
APA | S. C. Stä.,hler.,R. Widmer‐.,Schnidrig.,J.‐.,...&W. B. Banerdt.(2020).Geophysical observations of Phobos transits by InSight.Geophysical Research Letters. |
MLA | S. C. Stä,et al."Geophysical observations of Phobos transits by InSight".Geophysical Research Letters (2020). |
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