Differential Rotation and the v sin i Parameter
2004 ◽
Vol 215
◽
pp. 21-22
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Keyword(s):
We study the effects of a differential rotation upon the determination of the v sin i parameter. The effects are studied for several values of the ratio t = kinetic energy/gravitational potential energy, which include energy ratios higher than permitted for critical rigid rotation and using an internal conservative rotation law that allows for a latitudinal differential rotation in the stellar surface. Two effects are outstanding: when differential rotation is dependent on the stellar latitude the v sin i parameter does not necessarily correspond to the equatorial rotation velocity; the line width is a double valued function of v sin i and it is dependent on t and the aspect angle i.
Keyword(s):
1999 ◽
Vol 86
(1)
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pp. 383-390
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2012 ◽
Vol 8
(S292)
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pp. 47-47
2000 ◽
Vol 177
◽
pp. 661-662
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1996 ◽
Vol 11
(01)
◽
pp. 161-170
Keyword(s):
1996 ◽
Vol 24
(4)
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pp. 235-242
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1997 ◽
Vol 200
(16)
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pp. 2177-2188
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2006 ◽
Vol 36
(7)
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pp. 1420-1429
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