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Volumn 336, Issue 6082, 2012, Pages 690-694

The violent collisional history of asteroid 4 Vesta

Author keywords

[No Author keywords available]

Indexed keywords

ASTEROID; COLLISION; IMPACT STRUCTURE; SOLAR SYSTEM; SPACECRAFT;

EID: 84860810098     PISSN: 00368075     EISSN: 10959203     Source Type: Journal    
DOI: 10.1126/science.1218757     Document Type: Article
Times cited : (229)

References (31)
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    • Thomas, P.C.1
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    • P. Schenk et al., Science 336, 694 (2012).
    • (2012) Science , vol.336 , pp. 694
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    • D. Nesvorný et al., Icarus 193, 85 (2008).
    • (2008) Icarus , vol.193 , pp. 85
    • Nesvorný, D.1
  • 15
    • 84871652962 scopus 로고    scopus 로고
    • note
    • It is also possible that a part of the Vestoids and HED meteorites have been originated by the older 400-km basin underneath Rheasilvia.
  • 16
    • 84855502585 scopus 로고    scopus 로고
    • Methods and additional data are available as supplementary materials on
    • Methods and additional data are available as supplementary materials on Science Online.
    • Science Online
  • 19
    • 84871668172 scopus 로고    scopus 로고
    • note
    • The slope of a cumulative crater size-frequency distribution is defined by Δlog(N)/Δlog(D), where N is the cumulative number of craters and D is the crater size.
  • 21
    • 84871664066 scopus 로고    scopus 로고
    • note
    • Note that this region excludes the floor of the large basin underneath Rheasilvia, and it extends for about 10° to 15° degrees northward starting from Rheasilvia's rim.
  • 25
    • 84922711962 scopus 로고    scopus 로고
    • S. Marchi et al., http://arXiv.org/abs/1111.3628 (2011).
    • (2011)
    • Marchi, S.1
  • 27
    • 84871660213 scopus 로고    scopus 로고
    • note
    • Intrinsic collisional probabilities among asteroids are computed by analytical means using the orbital distribution of asteroids >10 km (25). The main source of uncertainty in the age-estimation process, which is considered in the final error estimate, is due to the lack of detailed knowledge of the impactor size-frequency distribution.
  • 28
    • 84871641639 scopus 로고    scopus 로고
    • note
    • The estimated size of the impactor that produced Rheasilvia is ∼50 km or larger [e.g., (20)], resulting in an impact every ∼16 Gy, according to the present main-belt impact rate. The knowledge that the event did happen in 4.5 Gy implies a 25% probability of occurrence in the past 1 Gy.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.