http://www.cnr.it/ontology/cnr/individuo/prodotto/ID284374
The geometry of impacts on a synchronous planetary satellite (Articolo in rivista)
- Type
- Label
- The geometry of impacts on a synchronous planetary satellite (Articolo in rivista) (literal)
- Anno
- 2014-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1007/s10569-014-9571-6 (literal)
- Alternative label
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- Valsecchi G.B.; Alessi E.M.; Rossi A. (literal)
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- http://www.scopus.com/inward/record.url?eid=2-s2.0-84905757255&partnerID=q2rCbXpz (literal)
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- Scopu (literal)
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- IAPS-INAF, via Fosso del Cavaliere 100, 00133 Roma, Italy; IFAC-CNR, via Madonna del Piano 10, 50019 Sesto Fiorentino, Italy (literal)
- Titolo
- The geometry of impacts on a synchronous planetary satellite (literal)
- Abstract
- We consider a satellite in a circular orbit about a planet that, in turn, is in a circular orbit about the Sun; we further assume that the plane of the planetocentric orbit of the satellite is the same as that of the heliocentric orbit of the planet. The pair planet-satellite is encountered by a population of small bodies on planet-crossing, inclined orbits. With this setup, and using the extension of Öpik's theory by Valsecchi et al. (Astron Astrophys 408:1179-1196, 2003), we analytically compute the velocity, the elongation from the apex and the impact point coordinates of the bodies impacting the satellite, as simple functions of the heliocentric orbital elements of the impactor and of the longitude of the satellite at impact. The relationships so derived are of interest for satellites in synchronous rotation, since they can shed light on the degree of apex-antapex cratering asymmetry that some of these satellites show. We test these relationships on two different subsets of the known population of Near Earth Asteroids. © 2014 Springer Science+Business Media Dordrecht. (literal)
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