Warm and cool starspots with opposite polarities - A high-resolution Zeeman-Doppler-Imaging study of II Pegasi with PEPSI

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Table A.1

Log of PEPSI observations.

Date	HJD	Total exp.	Stokes	CD III		CD V		ϕ
(UT)	(2 458 000+)	(min)		Δλ (Å)	S∕N	Δλ (Å)	S∕N	(Eq. (1))
14/10/2017	40.6288130	20	IV	4800–5441	596	6278–7419	1202	0.052
15/10/2017	41.6140278	20	IV	4800–5441	633	6278–7419	1230	0.198
16/10/2017	42.6196759	20	IV	4800–5441	514	6278–7419	1025	0.348
16/10/2017	42.8734476	25	IV	4800–5441	485	6278–7419	969	0.386
10/10/2017	36.6751209	25	IV	4800–5441	397	6278–7419	791	0.464
10/10/2017	36.8003129	20	IV	4800–5441	485	6278–7419	965	0.482
10/10/2017	36.9388681	20	IV	4800–5441	361	6278–7419	816	0.503
11/10/2017	37.8191406	15	IV	4800–5441	564	6278–7419	1064	0.634
11/10/2017	37.9113733	20	IV	4800–5441	565	6278–7419	1160	0.648
12/10/2017	38.6196109	20	IV	4800–5441	554	6278–7419	1128	0.753
12/10/2017	38.8294253	20	IV	4800–5441	632	6278–7419	1278	0.784
12/10/2017	38.9365060	20	IV	4800–5441	268	6278–7419	723	0.800
13/10/2017	39.6124016	20	IV	4800–5441	608	6278–7419	1228	0.901
13/10/2017	39.8910861	20	IV	4800–5441	470	6278–7419	1089	0.942

Notes. The second column gives the heliocentric Julian date for the time of mid exposure, the third column is the total exposure time for both sub-exposures. S/N is per pixel and is the average from within the two wavelength regions Δλ. The last column is the rotational phase based on the ephemeris in Eq. (1).

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