A possible observational constraint on the production of lithium by galactic novae |
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| Authors: | F D'Antona |
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| Institution: | (1) Osservatorio Astronomico di Roma, Monte Porzio, Roma, Italy;(2) Istituto di Astrofisica Spaziale del C.N.R., Frascati, Italy |
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| Abstract: | Recent computations (D'Antona and Mazzitelli, 1982), together with the general scheme of evolution of cataclysmic binaries (CBs), lead to conclude that the secondaries in those CBs having periods shorter than  4.5 hr have a large3He content in the envelope, ranging from 10–4 (P=4.5 hr) to >2×10–3 (P=3 hr) in mass fraction, if the nova systems have an age of some billion years. The consequence on the frequency of novae outbursts is shortly examined. If lithium is produced by galactic novae, the7Li content of old disk stars should be very close to the Population II content.Presented at the 5th European Workshop on White Dwarfs, Kiel, 1984. |
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