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Expansion analyses on Planetary Nebulae

Published online by Cambridge University Press:  25 May 2016

S. Tamura ,
Y. Yadoumaru ,
K. M. Shibata  and
A. Tajitsu
S. Tamura
Affiliation:
1Astronomical Institute, Tohoku University
Y. Yadoumaru
Affiliation:
2National Astronomical Observatory, Mitaka
K. M. Shibata
Affiliation:
2National Astronomical Observatory, Mitaka
A. Tajitsu
Affiliation:
1Astronomical Institute, Tohoku University

Extract

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Since planetary nebulae(PNe) are defined as the expanding ionized gas surrounding hot central stars, the most important and fundamental subject is to study expansion characteristics. What and how can we determine a typical expansion velocity of individual nebula? In spite of great success of Perek and Kohoutek Catalog(1967) and a recent Strasbourg-ESO Catalogued 992), PNe researchers have suffered from the lack of sufficiently large samples of expansion measurements on various type of PNe.

Type
IV. Envelopes
Information
Symposium - International Astronomical Union , Volume 180: Planetary Nebulae , 1997 , pp. 280
Copyright
Copyright © Kluwer 1997 

References

Acker, A., Ochsenbein, F., Stenholm, B., Tylenda, R., Marcout, J., Schohn, C., 1992, ESO, München.Google Scholar
Perek, L. and Kohoutek, L. 1967, Czechslovak Academy of Science, Prague.Google Scholar
Tamura, S. and Shibata, K.M., 1990, PASP, 102, 1301.CrossRefGoogle Scholar