Skip to main content

Thank you for visiting nature.com. You are using a browser version with limited support for CSS. To obtain the best experience, we recommend you use a more up to date browser (or turn off compatibility mode in Internet Explorer). In the meantime, to ensure continued support, we are displaying the site without styles and JavaScript.

  • Letter
  • Published:

Fate of very low-mass secondaries in accreting binaries and the 1.5-ms pulsar

Abstract

Families of old tight low-mass binaries in which mass transfer to a heavier collapsed primary from a lighter secondary is an essential evolutionary feature include the galactic bulge X-ray sources, in which the primary is a neutron star. Canonical theories for the evolution of such binaries assume that the mass transfer and secondary evolution are always stable. We argue here that the stability postulate may fail if the secondary mass falls below 2×10−2 M. The secondary may then be almost entirely tidally disrupted, leaving behind, at most, a small remnant very much lighter than the Earth in an orbit with a period of several hours. In binary accretion scenarios for the origin of the millisecond pulsar PSR1937 + 2141, this could explain the absence of any detected binary companion.

This is a preview of subscription content, access via your institution

Access options

Buy this article

Prices may be subject to local taxes which are calculated during checkout

Similar content being viewed by others

References

  1. Alpar, M. A., Cheng, A. F., Ruderman, M. A. & Shaham, J. Nature 300, 728–730 (1982).

    Article  ADS  Google Scholar 

  2. See, e.g., Rappaport, S., Joss, P. C. & Webbink, R. F. Astrophys. J. 254, 616 (1982).

    Article  ADS  CAS  Google Scholar 

  3. Kopal, Z. Close Binary Systems (Chapman and Hall, London, 1959).

    MATH  Google Scholar 

  4. Henrichs, H. & van den Heuvel, E. P. J. Nature 303, 213–216 (1983).

    Article  ADS  Google Scholar 

  5. Faulkner, J. Proc. IAU Symp. No. 73 (1976).

  6. Krolik, J. H., Meiksin, A. & Joss, P. C. Preprint (MIT, 1983).

  7. Boriakoff, V., Buccheri, R. & Fauci, F. Nature 304, 417–419 (1983).

    Article  ADS  Google Scholar 

  8. Helfand, D. J., Ruderman, M. A. & Shaham, J. Nature 304, 423–425 (1983).

    Article  ADS  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Rights and permissions

Reprints and permissions

About this article

Cite this article

Ruderman, M., Shaham, J. Fate of very low-mass secondaries in accreting binaries and the 1.5-ms pulsar. Nature 304, 425–427 (1983). https://doi.org/10.1038/304425a0

Download citation

  • Received:

  • Accepted:

  • Issue Date:

  • DOI: https://doi.org/10.1038/304425a0

This article is cited by

Comments

By submitting a comment you agree to abide by our Terms and Community Guidelines. If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate.

Search

Quick links

Nature Briefing

Sign up for the Nature Briefing newsletter — what matters in science, free to your inbox daily.

Get the most important science stories of the day, free in your inbox. Sign up for Nature Briefing