Skip to main content Accessibility help
×
Home

Lithium Abundances in Main-Sequence F Stars and Sub-Giants

  • Jose Dias do Nascimento (a1), Sylvie Théado (a1) and Sylvie Vauclair (a1)

Abstract

The application to main-sequence stars of the rotation-induced mixing theory in the presence of μ-gradients leads to partial mixing in the lithium destruction region, not visible in the atmosphere. The induced lithium depletion becomes visible in the sub-giant phase as soon as the convective zone deepens enough. This may explain why the observed ‘lithium dilution’ is smoother and the final dilution factor larger than obtained in standard models, while the lithium abundance variations are very small on the main sequence.

    • Send article to Kindle

      To send this article to your Kindle, first ensure no-reply@cambridge.org is added to your Approved Personal Document E-mail List under your Personal Document Settings on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part of your Kindle email address below. Find out more about sending to your Kindle. Find out more about sending to your Kindle.

      Note you can select to send to either the @free.kindle.com or @kindle.com variations. ‘@free.kindle.com’ emails are free but can only be sent to your device when it is connected to wi-fi. ‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.

      Find out more about the Kindle Personal Document Service.

      Lithium Abundances in Main-Sequence F Stars and Sub-Giants
      Available formats
      ×

      Send article to Dropbox

      To send this article to your Dropbox account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your <service> account. Find out more about sending content to Dropbox.

      Lithium Abundances in Main-Sequence F Stars and Sub-Giants
      Available formats
      ×

      Send article to Google Drive

      To send this article to your Google Drive account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your <service> account. Find out more about sending content to Google Drive.

      Lithium Abundances in Main-Sequence F Stars and Sub-Giants
      Available formats
      ×

Copyright

References

Hide All
Burkhart, C., Coupry, M.F. 2000, preprint
Charbonnel, C., Talon, S. 1999, A&A 351, 635
Charbonnel, C., Talon, S. 2000, this conference
Dias do Nascimento, J.D. Jr., Charbonnel, C., Lèbre, A., de Laverny, P., de Medeiros, J.R., 1999, preprint
Maeder, A., & Zahn, J.-P. 1998, A&A, 334, 1000
Mestel, L., 1953, M.N.R.A.S. 113, 716
Théado, and Vauclair, 2000, this conference
Vauclair, S. 1991, in IAU Symp. 145, Evolution of Stars : the Photospheric Abundance Connection (Michaud, G., Tutukov, A.eds.) p. 327
Vauclair, S. 1999, A&A, 351, 973
Vauclair, S. 2000, this conference
Zahn, J.-P. 1992, A&A, 265, 115

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed