Abstract
We show here that carbon–oxygen white dwarfs in close binary systems are likely progenitors of neutron stars and Type I supernovae (SN I). This conclusion is supported by different effects associated with crystallization of the carbon–oxygen mixture at relatively low temperatures (T ≲ 5×107 K) and high densities (ρ ≳ 5×109g cm−3). In particular, the existence of a pronounced eutectic in the phase diagram of carbon–oxygen mixtures induces carbon–oxygen separation, with oxygen settling at the star's centre and carbon being rejected to lower-density layers. This not only favours ‘quiet’ or non-explosive collapse, but it may also induce off-centre ignitions at variable depths. We discuss their possible correspondence with the ‘fast’ to ‘slow’ SN I range.
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References
Starrfield, S., Truran, J. W., Sparks, W. M. & Kutter, G. S. Astrophys. J. 176, 169 (1972).
Whelan, J. & Iben, I. Astrophys. J. 186, 1007 (1973).
Canal, R. & Schatzman, E. Astr. Astrophys. 46, 229 (1976).
Colgate, S. A., Petschek, A. G. & Kriese, J. T. Astrophys. J. Lett. 237, L81 (1980).
Arnett, W. D. Preprint (Enrico Fermi Institute, University of Chicago, 1981).
Mazurek, T. J. & Wheeler, J. C. Fundamentals cosmic Phys. 5, 193 (1980).
Woosley, S. E., Weaver, T. A. & Taam, R. E. in Proc. Texas Workshop on Type I Supernovae, 96 (1980).
Nomoto, K. in Proc. Texas Workshop on Type I Supernovae, 164 (1980).
Canal, R., Isern, J. & Labay, J. Astrophys. J. Lett. 241, L33 (1980).
Canal, R., Isern, J. & Labay, J. Space Sci. Rev. 27, 595 (1980).
Canal, R., Isern, J. & Labay, J. in Proc. NATO Advanced Study Institute on Supernovae, Cambridge (in the press).
Canal, R. & Isern, J. Proc. IAU Colloq. No. 53, 52 (1979).
Mazurek, T. J., Meier, D. C. & Wheeler, J. C. Astrophys. J. 213, 518 (1977).
Paczynski, B. & Zytkow, A. Astrophys. J. 222, 604 (1978).
Stevenson, D. J. J. Phys. Suppl. 41, C2–53 (1980).
Pollock, E. L. & Hansen, J. P. Phys. Rev. A8, 3110 (1973).
Lamb, D. Q. & Van Horn, H. M. Astrophys. J. 200, 306 (1975).
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Canal, R., Isern, J. & Labay, J. A new model for white dwarf supernovae. Nature 296, 225–226 (1982). https://doi.org/10.1038/296225a0
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DOI: https://doi.org/10.1038/296225a0
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