Previous abstract Next abstract

Session 25 - Solar System.
Oral session, Monday, January 13
Piers 2/3,

[25.03] Origin of the Elements and Solar System

O. K. Manuel, J. T. Lee (U. Missouri), J. M. D. MacElroy (U. Coll. Dublin, Ireland), B. Li (LPL, U. Arizona), P. K. Kuroda (Las Vegas, NV), W. K. Brown (Lake Almanor, CA)

Our elements came from a massive, spinning supernova (1,2) that collapsed and exploded axially about 5 billion years ago , leaving a rotationally-supported (4), equatorial disk of material that formed planets. Interstellar grains did not survive the supernova (SN), which can be dated with Pu-244 and U-238. The sun formed on the SN core. Irradiation from the condensing sun (5) continued to make other radioactivities and fusile elements (D, Li, Be and B). Light elements from the outer SN layers formed giant, Jovian planets. The Fe-rich region surrounding the SN core produced iron cores of the terrestrial planets, and these were layered with a mantle of stony meteorites that formed in an intermediate SN region. Intrasolar diffusion enriches lighter nuclei at the sun's surface.(6)

key words: supernova, nucleogenetic heterogeneities, planetary systems, intrasolar diffusion

\beginflushleft 1. Manuel, O. K. amp; Sabu, D. D., Science 195, 208 (1977). 2. Lee, J. T., Li, Bin amp; Manuel, O. K., Comments on Astrophysics 18, no 6, in press (1996). 3. Kuroda, P. K. amp; Myers, W. A., Radiochim. Acta, in press (1996). 4. Lin, D. N. C., Woosley, S. E. amp; Bodenheimer, P. H., Nature 353, 827 (1991). 5. Fowler, W. A., Greenstein, J. L. amp; Hoyle, F., Am. J. Phys. 29, 393 (1961). 6. MacElroy, J. M. D. amp; Manuel, O. K., J. Geophys. Res. 91, D473 (1986). \endflushleft

The author(s) of this abstract have provided an email address for comments about the abstract:

Program listing for Monday