Instead the long-term radial velocity variations may be caused by the star's magnetic cycle.
2.
In 1907 08, George Ellery Hale uncovered the sun's magnetic cycle and the magnetic nature of sunspots.
3.
It also has a magnetic cycle similar to the Sun, though its length is not well constrained.
4.
Hale's observations revealed that the complete magnetic cycle spans two solar cycles, or 22 years, before returning to its original state.
5.
HD 114613 has a magnetic cycle with a period of 897 ?61 days, about four-and-a-half times shorter than the Solar magnetic cycle and one of the shortest magnetic cycles known.
6.
HD 114613 has a magnetic cycle with a period of 897 ?61 days, about four-and-a-half times shorter than the Solar magnetic cycle and one of the shortest magnetic cycles known.
7.
HD 114613 has a magnetic cycle with a period of 897 ?61 days, about four-and-a-half times shorter than the Solar magnetic cycle and one of the shortest magnetic cycles known.
8.
The radio-wave flares might be created by magnetic cycles similar to those of sunspots, but because the magnetic fields of these stars are up to ten times stronger than the field of the Sun, these radio flares are more powerful and more persistent.
9.
"We speculate that the differences in speed of the plasma at the edge of these bands may be connected with the generation of the solar magnetic cycle which, in turn, generates periodic increases in solar activity, " said Dr . Craig DeForest, another Stanford scientist on the Soho research team.
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