Abstract
We follow the evolution of the infrared excess and the dustshell of Sakurai's Object by modelling the dust emission. The optical depth,dust temperature, and shell thickness parameters from the models are presented.Fits of DUSTY models to infrared spectra between 1997 May and 1999September illustrate the development of the dust from small grains to a rangeof grain sizes with an almost constant 60% graphite – 40% amorphous carbonmixture. The size of the infrared emitting region continues to growand may now be big enough to resolve. This may help to answerquestions such as the morphology of the dust shell, and whether the dustshell is `blobby' or smooth.
Similar content being viewed by others
References
Draine, B.T. and Lee, H.M.: 1984, ApJ 285, 89.
Duerbeck, H.W. et al.: 1997, AJ 114, 1657.
Duerbeck, H.W. et al.: 2000, AJ 119, 2360.
Eyres, S.P.S., Evans, A., Geballe, T.R., Salama, A. and Smalley, B.: 1998, MNRAS 298, L37.
Gallagher, J.S. and Ney, E.P.: 1976, ApJ 204, L35.
Ivezić, Ž., Nenkova, M. and Elitzur, M.: 1999, University of Kentucky Internal report. accessible at http://www.pa.uky.edu/~moshe/dusty.
Jura, M.: 1994, ApJ 434, 713.
Kimeswenger, S., Gratl, H. and Kerber, F.: 1997, IAUC 6608.
Kipper, T.: 2000, Baltic Astronomy 8, 483.
Nakano, S., Bennetti, S. and Duerbeck, H.W.: 1996, IAUC 6322.
Press, W.T., Teukolsky, S.A., Vetterling, V.T. and Flannery, B.P.: 1995, Numerical Recipes in Fortran 77, Cambridge University Press.
Tyne, V.H., Eyres, S.P., Geballe, T.R., Evans, A., Smalley, B., Duerbeck, H.W. and Asplund, M.: 2000, MNRAS 314, 595.
Zubko, V.G., Manella, V., Colangelli, L. and Bussoletti, E.: 1996, MNRAS 282, 1321.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Tyne, V., Evans, A., Smalley, B. et al. Modelling the dust around Sakurai's Object. Astrophysics and Space Science 279, 139–147 (2002). https://doi.org/10.1023/A:1014672712630
Issue Date:
DOI: https://doi.org/10.1023/A:1014672712630