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The Cause of the Nova Outburst

Published online by Cambridge University Press:  14 August 2015

S. Starrfield ,
W. M. Sparks  and
J. W. Truran
S. Starrfield
Affiliation:
Department of Physics, Arizona State University, Tempe, Ariz., U.S.A. Los Alamos, Scientific Laboratory, N.M., U.S.A.
W. M. Sparks
Affiliation:
NASA/Goddard Space Flight Center, Greenbelt, Md., U.S.A.
J. W. Truran
Affiliation:
University of Illinois Observatory, Urbana, Ill. U.S.A.

Abstract

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We have evolved a large number of models of thermonuclear runaways in the hydrogen-rich envelopes of 1.00 M⊙ carbon-oxygen white dwarfs. Models characterized by enhanced CNO abundances satisfy the observations of the common nova outburst. They eject from 1027 to 1029 g moving with velocities of 200–2400 km s−1: kinetic energies of 1044 to 1045 erg. The theoretical light curves are similar to the observed light curves of common novae during the early stages of the outburst. As a consequence of our studies, we can present an explanation for the continuous ejection of mass which is observed for long times after the initial outburst and for the relationship between maximum magnitude and the decline to minimum. We are also now able to present an explanation for the constant luminosity phase of the outburst and the oval shapes of the ejected nebulae.

We have extended our earlier work to models with extreme enhancements of 12C and to models which include the infalling material in the evolution. The extreme 12C studies result in outbursts which reach near supernova proportions while the accretion models result in light curves which resemble observed light curves quite closely. Finally, the accretion studies also demonstrate the need for enhanced abundances.

Type
Research Article
Information
Symposium - International Astronomical Union , Volume 73: Structure and Evolution of Close Binary Systems , 1976 , pp. 155 - 172
Copyright
Copyright © Reidel 1976 

References

Allen, C. W.: 1963, Astrophysical Quantities , Athlone Press, London.Google Scholar
Antipova, L. I.: 1974, in Contoupolous, G. (ed.), IAU Highlights of Astronomy , D. Reidel, Dordrecht, Holland, p. 501.CrossRefGoogle Scholar
Bath, G. T.: 1974, Monthly Notices Roy. Astron. Soc. 171, 311.CrossRefGoogle Scholar
Clayton, D. D.: 1968, Principles of Stellar Evolution and Nucleosynthesis , McGraw-Hill, New York.Google Scholar
Cloutman, L. D. and Starrfield, S.: 1975 (in preparation).Google Scholar
Cox, A. N. and Stewart, J. N.: 1965, Astrophys. J. Suppl. 11, 22.CrossRefGoogle Scholar
Gallagher, J. S. and Code, A. D.: 1974, Astrophys. J. 189, 303.CrossRefGoogle Scholar
Gallagher, J. S. and Starrfield, S.: 1976, Monthly Notices Roy. Astron. Soc. , in press.Google Scholar
Geisel, S. L., Kleinmann, D. E. and Low, F. J.: 1970, Astrophys. J. Lett. 161, L101.CrossRefGoogle Scholar
Giannone, P. and Weigert, A.: 1967, Z. Astrophys. 67, 41.Google Scholar
Hazelhurst, J.: 1962, Adv. Astron. Astrophys. 1, 1.CrossRefGoogle Scholar
Herbst, W., Hesser, J. E., and Ostriker, J. P.: 1974, Astrophys. J. 193, 679.CrossRefGoogle Scholar
Hoyle, F. and Clayton, D. D.: 1974, Astrophys. J. 191, 705.CrossRefGoogle Scholar
Kraft, R. P.: 1964, Astrophys. J. 139, 457.CrossRefGoogle Scholar
Kutter, G. S. and Sparks, W. M.: 1972, Astrophys. J. 175, 407.CrossRefGoogle Scholar
Lamb, D. W. and Van Horn, H. M.: 1975, Astrophys. J. (in press).Google Scholar
Lucy, L. B. and Solomon, P.: 1970, Astrophys. J. 159, 879.CrossRefGoogle Scholar
Paczynski, B.: 1971, Ann. Rev. Astron. Astrophys. 9, 183.CrossRefGoogle Scholar
Paczynski, B.: 1976, these proceedings, p. 75.CrossRefGoogle Scholar
Payne-Gaposchkin, C.: 1957, The Galactic Novae , Dover Press, New York.Google Scholar
Pottasch, S.: 1958, Ann. Astrophys. 22, 412.Google Scholar
Redkoborodyi, Y. N.: 1972, Astrofizika 8, 261.Google Scholar
Rose, W. K.: 1968, Astrophys. J. 152, 245.CrossRefGoogle Scholar
Rose, W. K. and Smith, R.: 1972, Astrophys. J. 172, 699.CrossRefGoogle Scholar
Ruusalepp, M. and Luud, L.: 1970, Tartu Obs. Publ. 39, 89.Google Scholar
Smak, J.: 1971 in IAU Coll. 15, Bamberg, p. 248.CrossRefGoogle Scholar
Sneden, C. and Lambert, D. L.: 1975, Monthly Notices Roy. Astron. Soc. 170, 533.CrossRefGoogle Scholar
Sparks, W. M.: 1969, Astrophys. J. 158, 569.CrossRefGoogle Scholar
Sparks, W. M. and Starrfield, S.: 1973, Monthly Notices Roy. Astron. Soc. 164, 1P.CrossRefGoogle Scholar
Sparks, W. M., Starrfield, S., and Truran, J. W.: 1976, Astrophys. J. , in press.Google Scholar
Starrfield, S.: 1970, Astrophys. J. 161, 361.CrossRefGoogle Scholar
Starrfield, S., Sparks, W. M., and Truran, J. W.: 1974a, Astrophys. J. Suppl. 261, 28, 247 (Paper II).Google Scholar
Starrfield, S., Sparks, W. M., and Truran, J. W.: 1974b, Astrophys. J. 192, 647 (Paper III).CrossRefGoogle Scholar
Starrfield, S., Sparks, W. M., and Truran, J. W.: 1974c, 19th Liege Coll. , in press (Paper IV).Google Scholar
Starrfield, S., Sparks, W. M., and Truran, J. W.: 1974d, 19th Liege Coll. , in press (Paper VI).Google Scholar
Starrfield, S., Truran, J. W., and Sparks, W. M.: 1975, Astrophys. J. Lett. 198, L113 (Paper V).CrossRefGoogle Scholar
Starrfield, S., Trurah, J. W., Sparks, W. M., and Kutter, G. S.: 1972, Astrophys. J. 176, 169 (Paper I).CrossRefGoogle Scholar
Swedlund, J. B., Kemp, J. C. and Wolstencroft, R. D.: 1974, Astrophys. J. Lett. 193, L11.CrossRefGoogle Scholar
Taam, R. and Faulkner, J.: 1975, Astrophys. J. (in press).Google Scholar
Van Horn, H. M. and Colvin, J.: 1975 (in preparation).Google Scholar
Walker, M. F. and Chincarini, G.: 1968, Astrophys. J. 154, 157.CrossRefGoogle Scholar