Mars: Satellite origin and angular momentum

William K. Hartmann, Donald R. Davis, Clark R. Chapman, Steven Soter, Richard J. Greenberg

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

The origin of Phobos and Deimos is considered with a view to accounting for the existence of very small satellites with circular orbits in the Martian equatorial plane, and simultaneously for the suspected angular momentum deficiency of the Mars system. All models considered failed to satisfy at least one requirement, and the problem is considered more puzzling than is at first apparent. The Martian angular momentum deficiency, if physically significant, may be unrelated to the present satellites' origin, but might relate to a large ancient satellite, long ago destroyed. Accretion onto Mars of large amounts of asteroidal dust brought in by Poynting-Robertson drag may have some bearing on the angular momentum problem.

Original languageEnglish (US)
Pages (from-to)588-594
Number of pages7
JournalIcarus
Volume25
Issue number4
DOIs
StatePublished - 1975

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Mars satellites
angular momentum
Mars
momentum
mars
Deimos
Phobos
circular orbits
drag
dust
accretion
requirements

ASJC Scopus subject areas

  • Space and Planetary Science
  • Astronomy and Astrophysics

Cite this

Hartmann, W. K., Davis, D. R., Chapman, C. R., Soter, S., & Greenberg, R. J. (1975). Mars: Satellite origin and angular momentum. Icarus, 25(4), 588-594. https://doi.org/10.1016/0019-1035(75)90040-8

Mars : Satellite origin and angular momentum. / Hartmann, William K.; Davis, Donald R.; Chapman, Clark R.; Soter, Steven; Greenberg, Richard J.

In: Icarus, Vol. 25, No. 4, 1975, p. 588-594.

Research output: Contribution to journalArticle

Hartmann, WK, Davis, DR, Chapman, CR, Soter, S & Greenberg, RJ 1975, 'Mars: Satellite origin and angular momentum', Icarus, vol. 25, no. 4, pp. 588-594. https://doi.org/10.1016/0019-1035(75)90040-8
Hartmann, William K. ; Davis, Donald R. ; Chapman, Clark R. ; Soter, Steven ; Greenberg, Richard J. / Mars : Satellite origin and angular momentum. In: Icarus. 1975 ; Vol. 25, No. 4. pp. 588-594.
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