Effects of Stromgren Sphere on Line Profiles of 32 CYG with Alfven Waves Driven Wind

Details Effects of Stromgren Sphere on Line Profiles of 32 CYG with Alfven Waves Driven Wind Effects of Stromgren Sphere on Line Profiles of 32 CYG with Alfven Waves Driven Wind

Jun 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998jass...15..101k&link_type=abstract

Journal of Astronomy and Space Sciences, vol. 15, no. 1, p. 101-110.

Astronomy and Astrophysics

Astronomy

Scientific paper

We calculated line profiles of 32 Cyg with an assumed stromgren sphere at orbital phases 0.06 and 0.78. The wind models with Alfven waves show diminished line profiles compared to those of the models using power velocity laws. The reduced density of absorbers in HII region produce weak profiles, but line profiles at phi=0.06 do not show the differences except in the red edge of absorption. At phi=0.78 however, we could reproduce the line profiles of Alfven waves model by the power law models with two velocity gradients. It suggests that the power law model with 2 acceleration regions could reduce the errors in the theoretical line formation with no consideration of wind acceleration mechanism.

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