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The Position of the Central Stars of PN on the HR Diagram

Published online by Cambridge University Press:  19 July 2016

S. R. Pottasch*
Affiliation:
Kapteyn Astronomical Institute, P.O. Box 800, 9700 AV Groningen, The Netherlands

Extract

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Central stars can be placed on the HR diagram if their effective temperature (Teff) and radii are known. Knowledge of the radius can sometimes be replaced by another indication of the luminosity. The distance, which always plays an important, really critical role, is not well known. This is the essential reason that there is so much uncertainty about the position on the HR diagram.

Type
VI. Evolution
Copyright
Copyright © Kluwer 1989 

References

Barlow, M. 1987, Mont. Not. Roy. Astron. Soc. Google Scholar
Curtis, H.B. 1918, Lick Obs. Publ. Vol XIII, p. 57 Google Scholar
Gathier, R. 1984, , U. of Groningen Google Scholar
Gathier, R., Pottasch, S.R., Goss, W.M., van Gorkom, J.H. 1983, Astron. Astrophys. 128, 325 Google Scholar
Gathier, R., Pottasch, S.R., Pel, J.W. 1986a, Astron. Astrophys. 157, 171 Google Scholar
Gathier, R., Pottasch, S.R., Goss, W.M. 1986b, Astron. Astrophys. 157, 191 Google Scholar
Gathier, R., Pottasch, S.R., 1987 (to be submitted) Jacoby, G.H. 1980, Astrophys. J. Suppl. 42, 1 Google Scholar
Kaler, J.B. 1983, Astrophys. J. 271, 188 Google Scholar
Kinman, T.D., Feast, M.W., Lasker, B.S. 1987 Google Scholar
Maciel, W. 1985, Rev. Mex. Astron. Astrofis. 10, 199 Google Scholar
Mendez, R.H., Kudritzki, R.P., Gruschinske, J., Simon, K.P. 1981, Astron. Astrophys. 101, 323 Google Scholar
Mendez, R.H., Kudritzki, R.P., Simon, K.P. 1985, Astron. Astrophys. 142, 289 Google Scholar
Mendez, R.H., Kudritzki, R.P., Herrero, A., Husfeld, D., Groth, H.G. 1987 (submitted to Astron. Astrophys.) Google Scholar
Liller, M.H., Liller, W. 1968, IAU Symp. 34 (Reidel, Dordrecht)Google Scholar
Pottasch, S.R. 1984, IAU Symp. 103, ed. Flower, D. (Reidel, Dordrecht)Google Scholar
Pottasch, S.R. 1984, Planetary Nebulae (Reidel, Dordrecht)Google Scholar
Pottasch, S.R. 1987a, Torino Workshop Proc. ‘Mass loss in stars’ (Reidel, Dordrecht)Google Scholar
Pottasch, S.R. 1987b, ESO Workshop Proc. ‘Stellar evolution ……’ Google Scholar
Preite-Martinez, A., Pottasch, S.R. 1983, Astron. Astrophys. 126, 31 Google Scholar
Reay, N.K., Pottasch, S.R. 1983, Astron. Astrophys. 126, 31 Google Scholar
Schönberner, D. 1981, Astron. Astrophys. 103, 119 Google Scholar
Shaw, R.A., Kaler, J.B. 1985, Astrophys. J. 295, 537 Google Scholar
Walton, N.A., Reay, N.K., Pottasch, S.R., Atherton, P.D. 1986, Proc. IUE Conf. (ESA SP-263), p. 497 Google Scholar
Wood, P.R., Bessell, M.S., Copita, M.A. 1986, Astrophys. J. 311, 632 Google Scholar
Wood, P.R., Faulkner, D.J. 1986, Astrophys. J. 307, 659 Google Scholar