2001A&A...366..668K


Query : 2001A&A...366..668K

2001A&A...366..668K - Astronomy and Astrophysics, volume 366, 668-675 (2001/2-1)

Differential rotation of the present and the pre-main-sequence Sun.

KUEKER M. and STIX M.

Abstract (from CDS):

We present a model for the differential rotation of the present Sun as well as a solar-type star during its pre-main-sequence evolution. The model is based on the mixing-length theory of convective heat transport and a standard solar model. The resulting rotation law is in good agreement with observations and only weakly dependent on the mixing-length parameter. For the present Sun, the normalized horizontal shear decreases with increasing rotation rate, but the total shear is roughly constant. We then follow the Sun's evolutionary track from the beginning of the contraction to the arrival on the ZAMS. While at an age of 30Myr the total shear is very similar to that of the present Sun, it is much smaller on the Hayashi track.

Abstract Copyright:

Journal keyword(s): hydrodynamics - Sun: rotation - stars: rotation - stars: pre-main sequence

Simbad objects: 3

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Number of rows : 3
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 V* AB Dor TT* 05 28 44.8712165880 -65 26 55.199147208 8.259 7.856 6.999 6.496 5.993 K0V 977 0
2 V* LQ Lup TT* 15 08 37.7353724976 -44 23 17.049423444 11.46 11.54 10.645 10.22 9.804 G8IVe 78 0
3 V* PZ Tel BY* 18 53 05.8735056984 -50 10 49.897437168   9.22 8.342   7.464 G9IV 307 0

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2022.08.14-09:17:43

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