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Radiation-Pressure Ejection of Planetary Nebulae in Asymptotic-Giant- Branch Stars by Sweigart, Allen V. is a scholarly article available to read on EtoBox.

What is Radiation-Pressure Ejection of Planetary Nebulae in Asymptotic-Giant- Branch Stars about?

We have investigated the possibility that radiation pressure might trigger planetary nebula (PN) ejection during helium-shell flashes in asymptotic- giant-branch (AGB) stars. We find that the outward flux at the base of the hydrogen envelope during a flash will reach the Eddington limit when the envelope mass falls below a critical value that depends on the core mass and composition. These results may help to explain the helium-burning PN nuclei found in the Magellanic Clouds.

Author

Sweigart, Allen V.

Published

1999

Language

EN