Wind distances for planetary nebulae

Details Wind distances for planetary nebulae Wind distances for planetary nebulae

Jan 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985apj...288..305k&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 288, Jan. 1, 1985, p. 305-309.

Astronomy and Astrophysics

Astrophysics

31

Astrometry, Planetary Nebulae, Stellar Winds, Distance, Stellar Luminosity, Stellar Mass, Stellar Temperature, Ultraviolet Spectra

Scientific paper

A new method for the determination of distances to planetary nebulae is presented. If a star has a strong wind that produces a P Cygni profile in its spectrum, an escape velocity may be inferred from the terminal velocity, which provides a relation involving stellar temperature, luminosity, and mass. The theory of stellar evolution provides a second relation among these three variables, so that once the star's temperature is known, it is possible to simultaneously derive its mass and luminosity, and hence its distance. The method is applied to several test cases that illustrate its viability and current limitations.

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