Skip to main content Accessibility help
×
Home

Diffusion of Heavy Ions in Convective Envelopes, with Implications for the Masses of White Dwarfs

  • Charles Alcock (a1)

Extract

Heavy ions rapidly sink out of the base of a white,, dwarf convective zone, and a balance is set up between accreting interstellar material and this sedimentation flux. The heavy element abundances are lower than they would be in the absence of convection. The accretion process is responsible for any gross departures from the cosmic abundance ratios among the heavy ions. A chemically pure white dwarf must have mass greater than 0.2 M. The DB stars have masses lower than 0.4 M.

    • 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.

      Diffusion of Heavy Ions in Convective Envelopes, with Implications for the Masses of White Dwarfs
      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.

      Diffusion of Heavy Ions in Convective Envelopes, with Implications for the Masses of White Dwarfs
      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.

      Diffusion of Heavy Ions in Convective Envelopes, with Implications for the Masses of White Dwarfs
      Available formats
      ×

Copyright

References

Hide All
Alcock, C. 1979a, submitted to Ap. J.
Alcock, C. 19791b, in preparation.
Alcock, C. and Illarionov, A. 1979a, submitted to Ap. J.
Alcock, C. 1979b, submitted to Ap. J.
Bondi, H. and Hoyle, F. 1944, M.N.R.A.S., 117, 50.
Fontaine, G. and Michaud, G. 1979, preprint.
Fontaine, G. and Van Horn, H. M. 1976, Ap. J. Suppl., 31, 467.
Greenstein, J. L. 1969, Ap. J., 158, 281.
Liebert, J. 1976, Ap. J., 210, 715.
Michaud, G. and Fontaine, G. 1979, Ap. J., 229, 694.
Schatzman, E. 1958, “White Dwarfs” (Amsterdam: North Holland).
Shipman, H. L. 1979, Ap. J., 228, 240.
Strittmatter, P. A. and Wickramasinghe, D. T. 1971, M.N.R.A.S., 152, 47.
Trimble, V. and Greenstein, J. L. 1972, Ap. J. 177, 441.
Vauclair, G., Vauclair, S., and Greenstein, J. L. 1979, preprint.
Weidemann, V. 1975, in “Problems in Stellar Atmospheres and Envelopes” eds. Bashek, B., Kegel, W. H., and Traving, G. (Berlin: Springer-Verlag).
Weidemann, V. 1977, Astron. Ap., 59, 411.
Wesemael, F. 1979, Astron. Ap.

Diffusion of Heavy Ions in Convective Envelopes, with Implications for the Masses of White Dwarfs

  • Charles Alcock (a1)

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.