Statistical properties of winds in central stars of planetary nebulae

Details Statistical properties of winds in central stars of planetary nebulae Statistical properties of winds in central stars of planetary nebulae

Dec 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991a%26as...91..325p&link_type=abstract

Astronomy and Astrophysics Supplement Series (ISSN 0365-0138), vol. 91, no. 2, Dec. 1991, p. 325-335.

Astronomy and Astrophysics

Astrophysics

61

Planetary Nebulae, Stellar Mass Ejection, Stellar Winds, Visible Spectrum, High Resolution, Iue, Statistical Analysis

Scientific paper

Results are presented of an investigation of 834 low-resolution short-wavelength primary spectra taken with the IUE satellite of 159 planetary nebulae for the presence of stellar winds in the central stars. It is found that about 60 percent of central stars have a stellar wind. The wind's existence is examined against the optical spectral type of the star. Previous information is incorporated into an updated list of the edge velocities in the central stars having fast winds. They range from 600 to 3500 km/s. A positive correlation between the edge velocity of the stellar wind and the expansion velocity of the optical nebula is found. This correlation is consistent with the multiple interacting wind theory in the adiabatic case.

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