Multiple short-term cycles in Kepler star KIC 6876668

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Table 2.

Rotation periods and Rieger periods for the Sun and KIC 6876668.

	P_rot (d)	P_R1 (d)	P_R2 (d)	P_R3 (d)	P_R1/P_rot	P_R2/P_rot	P_R3/P_rot
Sun	24.47	$185 . 4_{- 4.6}^{+ 4.2}$ $185.4^{+4.2}_{-4.6}$	$238 . 3_{- 5.9}^{+ 24.6}$ $238.3^{+24.6}_{-5.9}$	$381 . 8_{- 13.9}^{+ 16.0}$ $381.8^{+16.0}_{-13.9}$	$7 . 58_{- 0.19}^{+ 0.17}$ $7.58^{+0.17}_{-0.19}$	$9 . 74_{- 0.24}^{+ 1.00}$ $9.74^{+1.00}_{-0.24}$	$15 . 60_{- 0.57}^{+ 0.65}$ $15.60^{+0.65}_{-0.57}$
KIC 6876668	5.6	$46 . 6_{- 0.8}^{+ 1.1}$ $46.6^{+1.1}_{-0.8}$	$58 . 9_{- 1.5}^{+ 1.3}$ $58.9^{+1.3}_{-1.5}$	$72 . 3_{- 2.2}^{+ 2.6}$ $72.3^{+2.6}_{-2.2}$	$8 . 32_{- 0.14}^{+ 0.20}$ $8.32^{+0.20}_{-0.14}$	$10 . 52_{- 0.27}^{+ 0.23}$ $10.52^{+0.23}_{-0.27}$	$12 . 91_{- 0.39}^{+ 0.46}$ $12.91^{+0.46}_{-0.39}$

Notes. The first column contains the rotation period. The next three columns show the observed multiple cycles in TSI (upper row) and the light curve of the Kepler star KIC 6876668 (lower row). The last three columns display the observed cycle periods normalised by the corresponding rotation period. Note that we use the sidereal rotation period of the Sun. The error bars of the cycle periods, P_R1, P_R2, and P_R3, have been computed from the width of the LS peak at half maximum. To determine the error bars of the period ratios, we have assumed that P_rot has no error.

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