Abstract
The central star V4334 Sgr (Sakurai's Object) of the planetary nebula PN G010.4+04.4 underwent in 1995–1996 the rare event of a very late helium flash.It is only one of two such events during the era of modern astronomy (the other event was V605 Aql = Nova Aql 1919). All other prominentobjects of that type originate from events several thousands of years ago (e.g. A30, A78). Hence, only snapshots can be modeled for those objects.V4334 Sgr allows for the first time a dynamic consideration of the formation of the dust shell from the beginning.We present here a model which is able to describe the complete photometric behaviorof the object, including the fine structure dips of the optical light curve during the first two years of the mass loss and the dust formation.
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References
Bessel, M.S.: 1990, PASP 102, 1181.
Borkowski, K.J., Harrington, J.P., Blair, W.P. and Bregman, J.D.: 1994, ApJ 235, 722.
Clayton, G.C. and deMarco, O.: 1997, AJ 114, 2679.
Dominik, C., Sedlmayr, E. and Gail, H.P.: 1993, A&A 277, 578.
Dürbeck, H.W. and Benetti, S.: 1996, ApJ 468, L111.
Dürbeck, H.W., Benetti, S., Gautschy, A. et al.: 1997, AJ 114, 1657.
Dürbeck, H.W., Liller, W., Sterken, C. et al.: 2000, AJ 119, 2360.
Gauger, A., Sedlmayr, E. and Gail, H.-P.: 1990, A&A 235, 345.
Iben, I.: 1984, ApJ 277, 333.
Iben, I., Kaler, J.B., Truran, J.W. and Renzini, R.: 1983, ApJ 264, 605.
Kamath, U.S. and Ashok, N.M.: 1999, MNRAS 302, 512.
Kerber, F., Blommaert, J.A.D.L., Groenewegen M.A.T. et al.: 1999, A&A 350, L27.
Kerber, F., Gratl, H., Kimeswenger, S. and Roth, M.: 1998, Ap&SS 255, 279.
Kerber, F., Palsa, R., Köppen, J., Blöcker, T. and Rosa, M.R.: 2000, ESO Messenger 101, 27.
Kimeswenger, S., Gratl, H., Kerber, F. et al.: 1997, IAUC 6608.
Kimeswenger, S., Kerber, F. and Weinberger, R.: 1998, MNRAS 296, 614.
Kipper, T.: 1999a, IBVS 4707.
Kipper, T.: 1999b, Baltic Astronomy 8, 483.
Koller, J. and Kimeswenger, S.: 2000, ASP Conference Series 196, 23.
Koller, J. and Kimeswenger, S.: 2000, Ap&SS in press.
Nakano, S., Benetti, S. and Dürbeck, H.W.: 1996, IAUC 6322.
Patzer, A.B.C., Gauger, A. and Sedlmayr, E.: 1998, A&A 337, 847.
Patzer, A.B.C., Helling, Ch., Winters, J.M. and Sedlmayr, E.: 1998, Astron. Ges. Abstr. Ser. 15, P41.
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Kimeswenger, S., Koller, J. Modeling the Dust Shell of V4334 Sgr. Astrophysics and Space Science 279, 149–154 (2002). https://doi.org/10.1023/A:1014676829469
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DOI: https://doi.org/10.1023/A:1014676829469