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The Velocity Field of S308. The Ring Nebula Around the WN5 Star HD 50896

Published online by Cambridge University Press:  14 August 2015

Paris Pişmiş  and
Alfonso Quintero
Paris Pişmiş
Affiliation:
Instituto de Astronomía, Universidad Nacional Autónoma de México
Alfonso Quintero
Affiliation:
Instituto de Astronomía, Universidad Nacional Autónoma de México

Abstract

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Radial velocities are determined by Fabry-Pérot interferometry at 131 points of the ring nebula S308. The velocities have yielded a kinematic distance of 1.5 kpc for the object, and an expansion velocity of 45–60 km s−1. The ring nebula has a diameter of 13 pc and the age is estimated to be about 1.5 to 2×105 years.

Type
SESSION 4 — OBSERVATIONS OF WOLF-RAYET BINARIES
Information
Symposium - International Astronomical Union , Volume 99: Wolf-Rayet Stars: Observations, Physics, Evolution , 1982 , pp. 305 - 309
Copyright
Copyright © Reidel 1982 

References

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