On the origin of the solar systems s-process abundances
In the search for the origin of the solar system s-process abundances much attention has been focused on the intershell zones of thermally pulsing asymptotic giant branch (AGB) stars. It has recently been suggested that, relative to the poor fits obtained from intermediate-mass AGB models, low-mass...
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| Veröffentlicht in: | Astrophys. J.; (United States) 1987-09, Vol.320 (2), p.866-870 |
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| container_title | Astrophys. J.; (United States) |
| container_volume | 320 |
| creator | MALANEY, R. A BOOTHROYD, A. I |
| description | In the search for the origin of the solar system s-process abundances much attention has been focused on the intershell zones of thermally pulsing asymptotic giant branch (AGB) stars. It has recently been suggested that, relative to the poor fits obtained from intermediate-mass AGB models, low-mass AGB models may result in much better fits to the observed solar system abundances. This suggestion was motivated by the high intershell base temperatures indicated by recent low-mass AGB calculations. Using new data, presented for the peak intershell base temperature in such stars, the s-process enhancements occurring in the intershell zones of low-mass AGB stars are calculated. A nonsolar distribution of s-process abundances is reported for all realistic AGB models studied. Other possible astrophysical sites for the origin of the solar system s-process abundances are discussed. 35 references. |
| doi_str_mv | 10.1086/165602 |
| format | Article |
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A nonsolar distribution of s-process abundances is reported for all realistic AGB models studied. Other possible astrophysical sites for the origin of the solar system s-process abundances are discussed. 35 references.</description><subject>640104 - Astrophysics & Cosmology- Solar Phenomena</subject><subject>ABUNDANCE</subject><subject>Astronomy</subject><subject>CHEMICAL COMPOSITION</subject><subject>CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS</subject><subject>Earth, ocean, space</subject><subject>Exact sciences and technology</subject><subject>GIANT STARS</subject><subject>MASS</subject><subject>MATHEMATICAL MODELS</subject><subject>ORIGIN</subject><subject>S PROCESS</subject><subject>SOLAR SYSTEM</subject><subject>STAR EVOLUTION</subject><subject>Star formation</subject><subject>STAR MODELS</subject><subject>STARS</subject><subject>Stellar characteristics and properties</subject><issn>0004-637X</issn><issn>1538-4357</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1987</creationdate><recordtype>article</recordtype><recordid>eNo9kE9Lw0AQxRdRMFb9DEHEW3T2f3KUYlUo9KLgLexuJjaSZstOPPTbmxrx9OY9fgy8x9g1h3sOpXngRhsQJyzjWpaFktqesgwAVGGk_ThnF0RfRyuqKmN2M-TjFvOYus9uyGP76yj2LuV0oBF3lFOxTzEgUe7899C4Ybov2VnresKrP12w99XT2_KlWG-eX5eP6yIIa8ei5EI3kqO3UCkvlQ6-Qe0qsFNsXQDJQWPgCpVqgzNoufLKeaikEtajXLCb-W-ksaspdCOGbYjDgGGstTGilGqC7mYopEiUsK33qdu5dKg51MdN6nmTCbydwb2j4Po2TV06-qetFtoClz_jL15F</recordid><startdate>19870915</startdate><enddate>19870915</enddate><creator>MALANEY, R. 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A</creatorcontrib><creatorcontrib>BOOTHROYD, A. I</creatorcontrib><creatorcontrib>California Institute of Technology, Pasadena</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>OSTI.GOV</collection><jtitle>Astrophys. J.; (United States)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>MALANEY, R. A</au><au>BOOTHROYD, A. I</au><aucorp>California Institute of Technology, Pasadena</aucorp><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>On the origin of the solar systems s-process abundances</atitle><jtitle>Astrophys. J.; (United States)</jtitle><date>1987-09-15</date><risdate>1987</risdate><volume>320</volume><issue>2</issue><spage>866</spage><epage>870</epage><pages>866-870</pages><issn>0004-637X</issn><eissn>1538-4357</eissn><coden>ASJOAB</coden><abstract>In the search for the origin of the solar system s-process abundances much attention has been focused on the intershell zones of thermally pulsing asymptotic giant branch (AGB) stars. It has recently been suggested that, relative to the poor fits obtained from intermediate-mass AGB models, low-mass AGB models may result in much better fits to the observed solar system abundances. This suggestion was motivated by the high intershell base temperatures indicated by recent low-mass AGB calculations. Using new data, presented for the peak intershell base temperature in such stars, the s-process enhancements occurring in the intershell zones of low-mass AGB stars are calculated. A nonsolar distribution of s-process abundances is reported for all realistic AGB models studied. Other possible astrophysical sites for the origin of the solar system s-process abundances are discussed. 35 references.</abstract><cop>Chicago, IL</cop><pub>University of Chicago Press</pub><doi>10.1086/165602</doi><tpages>5</tpages></addata></record> |
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| ispartof | Astrophys. J.; (United States), 1987-09, Vol.320 (2), p.866-870 |
| issn | 0004-637X 1538-4357 |
| language | eng |
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| source | Alma/SFX Local Collection |
| subjects | 640104 - Astrophysics & Cosmology- Solar Phenomena ABUNDANCE Astronomy CHEMICAL COMPOSITION CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS Earth, ocean, space Exact sciences and technology GIANT STARS MASS MATHEMATICAL MODELS ORIGIN S PROCESS SOLAR SYSTEM STAR EVOLUTION Star formation STAR MODELS STARS Stellar characteristics and properties |
| title | On the origin of the solar systems s-process abundances |
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