Discovery of non-radial pulsations in the spectroscopic binary Herbig Ae star RS Chamaeleontis

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Table 8:

Frequencies detected in the pixel-by-pixel intensity variations of the secondary component of RS Cha.
ID	Freq.	$A_{\rm PIV}^{{a}}$	S/N
	d^-1	km s^-1
$f_{{\rm orb}}$	0.599	0.060	5.7
$2f_{{\rm orb}}$	1.197	0.138	8.2
f₁	12.81	0.066	3.9¹
f_2b	19.11	0.061	5.7
f₃	24.56	0.054	4.0

^a $A_{\rm PIV}$ represents the integral of the pixel-amplitude across the line profile.
¹ This frequency has a S/N=5 in the CoG time-series. Therefore, we relaxed the significance criterion for this frequency in the PIV.

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