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 represents only one out of two such events during the era of modern astronomy (the other event was V605 Aql = Nova Aql 1919). All the other prominent objects of that type originate from events occurring several thousands of years ago (e.g. A30, A78). Thus it is of special interest for stellar evolution theory to model the detailed observations obtained during the last four years. Those models depend essentially on basic stellar parameters like effective temperature, surface gravity and stellar radius. Most of them depend strongly on the assumed distance to the object. Some models may give some constraints on this parameter, but most of them depend on the assumption as input parameter. Hence to determine a reliable distance is of considerable significance. This should be obtained through models that give us lower and upper boundaries, or through means which are independent of models. The detailed review, by using every kind of determination available up to now, leads to a Galactic foreground extinction of E B–V =0m75 ±0.05 and a distance of D = 2.0-0.6 +1.0 kpc.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Acker, A.: 1978, A&AS 33, 367.
Asplund, M., Gustafsson, B., Lambert, D.L. and Rao, K.N.: 1997, A&A 321, L17.
Borkowski, K.J., Harrington, J.P., Blair, W.P. and Bregman, J.D.: 1994, ApJ 235, 722.
Cahn, J.H., Kaler, J.B. and Stanghellini, L.: 1992, A&AS 94, 399.
Clayton, G.C. and de Marco, O.: 1997, AJ 114, 2679.
Daub, C.T.: 1982, ApJ 260, 612.
Duerbeck, H.W. and Benetti, S.: 1996, ApJ 468, L111.
Duerbeck, H.W., Liller, W., Sterken, C. et al.: 2000, AJ 119, 2360.
Eyres, S.P.S.: 2002, these proceedings.
Eyres, S.P.S., Richards, A.M.S., Evans, A. and Bode, M.F.: 1998, MNRAS 297, 905.
Gathier, R., Pottasch, S.R. and Pel, J.W.: 1986, A&A 157, 171.
Iben, I.: 1984, ApJ 277, 333.
Iben, I., Kaler, J.B., Truran, J.W. and Renzini, R.: 1983, ApJ 264, 605.
Ivison, R.J., Bode, M.F., Roberts, J.A. et al.: 1991, MNRAS 249, 374.
Jacoby, G.H., de Marco, O. and Sawyer, D.G.: 1998, AJ 116, 1367.
Lucke, P.: 1978, A&A 64, 367.
Lutz, J.H.: 1973, ApJ 181, 135.
Kerber, F., Palsa, R., Köppen, J., Blöcker, T. and Rosa, M.R.: 2000, ESO Messenger 101, 27.
Kimeswenger, S. and Kerber, F.: 1998, A&A 330, L41.
Kimeswenger, S., Kerber, F. and Weinberger, R.: 1998, MNRAS 296, 614.
Kimeswenger, S. and Koller, J.: 2002, these proceedings.
Maciel, W.J. and Pottasch, S.R.: 1980, A&A 88, 1.
Milne, D.K. and Aller, L.H.: 1975, A&A 38, 183.
Nakano, S., Benetti, S. and Duerbeck, H.W.: 1996, IAUC 6322.
O'Dell, C.R.: 1962, ApJ 135, 371.
Pavlenko, Y.V., Yakvina, L.A. and Duerbeck, H.W.: 2000, A&A 354, 229.
Pollacco, D.: 1999, MNRAS 304, 127.
Pottasch, S.R.: 1984, in: Planetary Nebulae, Reidel Publishing Co., Dordrecht, Holland.
Schneider, S.E. and Buckley, D.: 1996, ApJ 459, 606.
Shklovskii, I.S.: 1956, Astron. Zh. 33, 315.
Staninska, G., Tylenda, R., Acker, A. and Stenholm, B.: 1993, in: R. Weinberger and A. Acker (eds.), Proceedings of IAU Symposium 155, Planetary Nebulae, Kluwer Academic Publishers, Dordrecht, p. 177.
van de Steene, G.C. and Zijlstra, A.A.: 1995, A&A 293, 541.
Zijlstra, A.A., Acker, A. and Walsh, J.R.: 1997, A&AS 125, 289.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Kimeswenger, S. V4334 Sgr (Sakurai's Object): The Distance Problem. Astrophysics and Space Science 279, 79–89 (2002). https://doi.org/10.1023/A:1014656224926
Issue Date:
DOI: https://doi.org/10.1023/A:1014656224926