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Volumn 305, Issue 5691, 2004, Pages 1763-1766

Molecular cloud origin for the oxygen isotope heterogeneity in the solar system

Author keywords

[No Author keywords available]

Indexed keywords

CLOUDS; COMPOSITION; EVAPORATION; MOLECULAR CRYSTALS; PHOTODISSOCIATION;

EID: 4544285434     PISSN: 00368075     EISSN: None     Source Type: Journal    
DOI: 10.1126/science.1100989     Document Type: Article
Times cited : (329)

References (43)
  • 11
    • 4544255430 scopus 로고    scopus 로고
    • note
    • Dissociation of a molecule occurs through its excitation to a certain bound state that is coupled to a dissociative continuum. Predissociation is caused by interaction between discrete levels of a given electronic state and the dissociative continuum of another electronic state.
  • 19
    • 4544330498 scopus 로고    scopus 로고
    • note
    • 2O are ∼90 K in a molecular cloud and ∼150 K in the solar nebula, whereas those of CO are ∼16 K in a molecular cloud and ∼25 K in the solar nebula (38).
  • 23
    • 4544387996 scopus 로고    scopus 로고
    • note
    • v are the intensities of visual tight from a background star before and after the transverse of the cloud.
  • 31
    • 0001184775 scopus 로고    scopus 로고
    • V. Mannings, A. P. Boss, S. S. Russell, Eds. (Univ. of Arizona Press, Tucson, AZ)
    • S. V. W. Beckwith, T. Henning Y. Nakagawa, in Protostars and Planets IV, V. Mannings, A. P. Boss, S. S. Russell, Eds. (Univ. of Arizona Press, Tucson, AZ, 2000), pp, 533-558.
    • (2000) Protostars and Planets IV , pp. 533-558
    • Beckwith, S.V.W.1    Henning, T.2    Nakagawa, Y.3
  • 32
    • 0000303344 scopus 로고
    • E. H. Levy, J. I. Lunine, Eds. (Univ. of Arizona Press, Tucson, AZ)
    • S. J. Weidenschilling, J. N. Cuzzi, in Protostars and Planets III, E. H. Levy, J. I. Lunine, Eds. (Univ. of Arizona Press, Tucson, AZ, 1993), pp. 1031.
    • (1993) Protostars and Planets III , pp. 1031
    • Weidenschilling, S.J.1    Cuzzi, J.N.2
  • 33
    • 4544362496 scopus 로고    scopus 로고
    • note
    • 2O enrichments in the inner disk would be expected before the appearance of kilometer-size bodies in the outer disk
  • 35
    • 4544337899 scopus 로고    scopus 로고
    • note
    • 2O formation. A more detailed study coupled with disk dynamics is needed to evaluate the contribution of their CO dissociation at high altitudes attitudes in the disk to oxygen isotopic heterogeneity observed in the solar system.
  • 36
    • 4544345747 scopus 로고    scopus 로고
    • note
    • The bulk differences in oxygen isotopic composition observed among the meteorite groups and planets (1) could be explained by accretion at different times or by the incorporation of different amounts of nonvaporized water ice and solids with different degrees of the solid-gas equilibration. The solid-gas equilibration and the evolution of oxygen isotopic compositions of the gas in the inner region of the disk may have been recorded by refractory inclusions and chondrules in primitive meteorites.
  • 38
    • 0002676341 scopus 로고    scopus 로고
    • V. Mannings, A. P. Boss, S. S. Russell, Eds. (Univ. of Arizona Press, Tucson)
    • W. D. Langer et al., in Protostars and Planets IV, V. Mannings, A. P. Boss, S. S. Russell, Eds. (Univ. of Arizona Press, Tucson, 2000), pp. 29-57.
    • (2000) Protostars and Planets IV , pp. 29-57
    • Langer, W.D.1
  • 39
    • 4544254153 scopus 로고    scopus 로고
    • note
    • 2O.
  • 40
    • 0001541717 scopus 로고    scopus 로고
    • V. Mannings, A. P. Boss, S. S. Russell, Eds. (Univ. of Arizona Press, Tucson)
    • N. Calvet, L. Hartmann, S. E. Strom, in Protostars and Planets IV, V. Mannings, A. P. Boss, S. S. Russell, Eds. (Univ. of Arizona Press, Tucson, 2000), pp. 377-399.
    • (2000) Protostars and Planets IV , pp. 377-399
    • Calvet, N.1    Hartmann, L.2    Strom, S.E.3
  • 41
    • 0000892671 scopus 로고
    • D. C. Black, M. S. Matthews, Eds. (Univ. of Arizona Press, Tucson)
    • C. Hayashi, K. Nakazawa, Y. Nakagawa, in Protostars and Protoplanets II, D. C. Black, M. S. Matthews, Eds. (Univ. of Arizona Press, Tucson, 1985), pp. 1100-1153.
    • (1985) Protostars and Protoplanets II , pp. 1100-1153
    • Hayashi, C.1    Nakazawa, K.2    Nakagawa, Y.3
  • 43
    • 4544234645 scopus 로고    scopus 로고
    • note
    • We thank T. J. Fagan, A. N. Krot, and E. R. D. Scott for helpful discussion and improvement of the English and two anonymous reviewers for helpful comments. Supported by Monbu-Kagaku-sho grants.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.