The Wind Velocities Driven by Alfven Waves in 31 CYG

The Wind Velocities Driven by Alfven Waves in 31 CYG

31 Cyg is a ζ Aur-type eclipsing long-period binary composed a K supergiant and a hot main sequence star. Superginats have massive cool winds with low terminal velocities, and it is generally believed that supergiant's winds are driven by Alfven waves. We have calculated the wind velocities for...

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Main Authors: Kyung-Mee Kim, Kyu-Hong Choi
Format: Article
Language:English
Published: Korean Space Science Society (KSSS) 1991-06-01
Series:Journal of Astronomy and Space Sciences
Online Access:http://ocean.kisti.re.kr/downfile/volume/kosss/OJOOBS/1991/v8n1/OJOOBS_1991_v8n1_63.pdf
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spelling doaj-872e38f35b534306a2f7ad17f02d53932020-11-24T21:54:15ZengKorean Space Science Society (KSSS)Journal of Astronomy and Space Sciences2093-55872093-14091991-06-01816372The Wind Velocities Driven by Alfven Waves in 31 CYGKyung-Mee Kim0Kyu-Hong Choi1Department of Astronomy & Atmospheric Science, Yonsei University, Seoul 120-749Department of Astronomy & Atmospheric Science, Yonsei University, Seoul 120-74931 Cyg is a ζ Aur-type eclipsing long-period binary composed a K supergiant and a hot main sequence star. Superginats have massive cool winds with low terminal velocities, and it is generally believed that supergiant's winds are driven by Alfven waves. We have calculated the wind velocities for 31 Cyg by integrating of equation of motion due to Alfven waves and the results are agreed with observational terminal velocities. And our results are compared to Kuin and Ahmad's semiempirical wind model (1989).http://ocean.kisti.re.kr/downfile/volume/kosss/OJOOBS/1991/v8n1/OJOOBS_1991_v8n1_63.pdf
collection DOAJ
language English
format Article
sources DOAJ
author Kyung-Mee Kim
Kyu-Hong Choi
spellingShingle Kyung-Mee Kim
Kyu-Hong Choi
The Wind Velocities Driven by Alfven Waves in 31 CYG
Journal of Astronomy and Space Sciences
author_facet Kyung-Mee Kim
Kyu-Hong Choi
author_sort Kyung-Mee Kim
title The Wind Velocities Driven by Alfven Waves in 31 CYG
title_short The Wind Velocities Driven by Alfven Waves in 31 CYG
title_full The Wind Velocities Driven by Alfven Waves in 31 CYG
title_fullStr The Wind Velocities Driven by Alfven Waves in 31 CYG
title_full_unstemmed The Wind Velocities Driven by Alfven Waves in 31 CYG
title_sort wind velocities driven by alfven waves in 31 cyg
publisher Korean Space Science Society (KSSS)
series Journal of Astronomy and Space Sciences
issn 2093-5587
2093-1409
publishDate 1991-06-01
description 31 Cyg is a ζ Aur-type eclipsing long-period binary composed a K supergiant and a hot main sequence star. Superginats have massive cool winds with low terminal velocities, and it is generally believed that supergiant's winds are driven by Alfven waves. We have calculated the wind velocities for 31 Cyg by integrating of equation of motion due to Alfven waves and the results are agreed with observational terminal velocities. And our results are compared to Kuin and Ahmad's semiempirical wind model (1989).
url http://ocean.kisti.re.kr/downfile/volume/kosss/OJOOBS/1991/v8n1/OJOOBS_1991_v8n1_63.pdf
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