The unusual dynamical environment of Phobos and Deimos

D. R. Davis; K. R. Housen; Richard Greenberg

doi:10.1016/0019-1035(81)90168-8

The unusual dynamical environment of Phobos and Deimos

D. R. Davis, K. R. Housen, Richard Greenberg

Research output: Contribution to journal › Article › peer-review

50 Scopus citations

Abstract

The nonintuitive dynamical environment of Phobos and Deimos is explored using a three-dimensional numerical model. Surface gravity, escape speeds, and ejecta impact contours are calculated, both for the satellites at their present orbit distances and for orbit distances they may have had in the past. Impact loci for Stickney ejecta are computed and compared with the observed groove locations in order to evaluate a possible secondary impact origin for the grooves on Phobos. Possible effects of the dynamical environment on shaping the satellites' surfaces are discussed.

Original language	English (US)
Pages (from-to)	220-233
Number of pages	14
Journal	Icarus
Volume	47
Issue number	2
DOIs	https://doi.org/10.1016/0019-1035(81)90168-8
State	Published - Aug 1981
Externally published	Yes

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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10.1016/0019-1035(81)90168-8

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title = "The unusual dynamical environment of Phobos and Deimos",

abstract = "The nonintuitive dynamical environment of Phobos and Deimos is explored using a three-dimensional numerical model. Surface gravity, escape speeds, and ejecta impact contours are calculated, both for the satellites at their present orbit distances and for orbit distances they may have had in the past. Impact loci for Stickney ejecta are computed and compared with the observed groove locations in order to evaluate a possible secondary impact origin for the grooves on Phobos. Possible effects of the dynamical environment on shaping the satellites' surfaces are discussed.",

author = "Davis, {D. R.} and Housen, {K. R.} and Richard Greenberg",

note = "Funding Information: We thank C. Chapman, W. Hartmann, and S. Weidenschilling for many helpful and incisive discussions. We are also indebted to P. Thomas and an anonymous reviewer for careful refereeing and pointing out areas that needed clarification. This work was supported by NASA Contract NASW-3390 from the Mars Data Analysis Program. This is Planetary Science Institute Contribution No. 163. The Planetary Science Institute is an operating division of Science Applications, Inc.",

year = "1981",

month = aug,

doi = "10.1016/0019-1035(81)90168-8",

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T1 - The unusual dynamical environment of Phobos and Deimos

AU - Davis, D. R.

AU - Housen, K. R.

AU - Greenberg, Richard

N1 - Funding Information: We thank C. Chapman, W. Hartmann, and S. Weidenschilling for many helpful and incisive discussions. We are also indebted to P. Thomas and an anonymous reviewer for careful refereeing and pointing out areas that needed clarification. This work was supported by NASA Contract NASW-3390 from the Mars Data Analysis Program. This is Planetary Science Institute Contribution No. 163. The Planetary Science Institute is an operating division of Science Applications, Inc.

PY - 1981/8

Y1 - 1981/8

N2 - The nonintuitive dynamical environment of Phobos and Deimos is explored using a three-dimensional numerical model. Surface gravity, escape speeds, and ejecta impact contours are calculated, both for the satellites at their present orbit distances and for orbit distances they may have had in the past. Impact loci for Stickney ejecta are computed and compared with the observed groove locations in order to evaluate a possible secondary impact origin for the grooves on Phobos. Possible effects of the dynamical environment on shaping the satellites' surfaces are discussed.

AB - The nonintuitive dynamical environment of Phobos and Deimos is explored using a three-dimensional numerical model. Surface gravity, escape speeds, and ejecta impact contours are calculated, both for the satellites at their present orbit distances and for orbit distances they may have had in the past. Impact loci for Stickney ejecta are computed and compared with the observed groove locations in order to evaluate a possible secondary impact origin for the grooves on Phobos. Possible effects of the dynamical environment on shaping the satellites' surfaces are discussed.

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The unusual dynamical environment of Phobos and Deimos

Abstract

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