Dead zones and the formation of jovian planets

Ralph E. Pudritz, Soko Matsumura

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    Planets may complete their accretion when they become massive enough to open gaps in the face of disk viscosity. The prediction that gap-opening mass is related to disk viscosity implies that planetary masses are sensitive to the degree of ionization of the disk in the expected situation that viscosity is driven by magnetoturbulence by the well-known MRI instability. We show that in dead zones - poorly ionized regions wherein the MRI instability is unable to develop - only planets of terrestrial mass can form while Jovian planets form outside such regions. Dead zones extend out to 5-20 AU depending upon the disk column density.
    Original languageEnglish
    Title of host publicationRevista Mexicana de Astronomia y Astrofisica: Serie de Conferencias
    Subtitle of host publicationGravitational Collapse: from massive stars to planets
    EditorsG. Garcia-Segura, G. Tenorio-Tagle, J. Franco, H. W. Yorke
    Place of PublicationMexico
    PublisherUNAM
    Pages108-112
    Number of pages5
    Volume22
    Publication statusPublished - 2004

    Publication series

    NameRevista Mexicana de Astronomia y Astrofisica: Serie de Conferencias
    Volume22
    ISSN (Print)1405-2059

    Keywords

    • accretion
    • accretion disks
    • planets and satellites: formation
    • stars: planetary systems

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  • Cite this

    Pudritz, R. E., & Matsumura, S. (2004). Dead zones and the formation of jovian planets. In G. Garcia-Segura, G. Tenorio-Tagle, J. Franco, & H. W. Yorke (Eds.), Revista Mexicana de Astronomia y Astrofisica: Serie de Conferencias: Gravitational Collapse: from massive stars to planets (Vol. 22, pp. 108-112). (Revista Mexicana de Astronomia y Astrofisica: Serie de Conferencias; Vol. 22). UNAM. http://www.astroscu.unam.mx/rmaa/RMxAC..22/PDF/RMxAC..22_pudritz.pdf