VEGA/CHARA interferometric observations of Cepheids - I. A resolved structure around the prototype classical Cepheid δ Cep in the visible spectral range

N. Nardetto; A. Mérand; D. Mourard; J. Storm; W. Gieren; P. Fouqué; A. Gallenne; D. Graczyk; P. Kervella; H. Neilson; G. Pietrzynski; B. Pilecki; J. Breitfelder; P. Berio; M. Challouf; J.-M. Clausse; R. Ligi; P. Mathias; A. Meilland; K. Perraut; E. Poretti; M. Rainer; A. Spang; P. Stee; I. Tallon-Bosc; T. ten Brummelaar

doi:10.1051/0004-6361/201528005

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Volume 593 (September 2016)

A&A, 593 (2016) A45

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Table A.2

Observing log with the S1S2 baseline.

	Date	RJD	HA	λ_min	λ_max	Bp	Arg	S/N
	[yyyy.mm.dd]	[days]	[h]	[nm]	[nm]	[m]	[deg]

φ = 0.300	2008.08.03	54 681.988	2.36	628	632	29.01	148.13	13	0.649 _{±0.037±0.003}
	2008.08.03	54 681.988	2.36	654	658	29.01	148.13	15	0.763 _{±0.049±0.003}

φ = 0.543 ± 0.009	2008.07.30	54 677.894	–0.19	629	632	30.97	171.02	8	0.667 _{±0.079±0.003}
	2008.07.30	54 677.894	–0.19	654	658	30.97	171.01	11	0.694 _{±0.063±0.003}
	2008.07.30	54 677.958	1.37	530	533	30.08	156.84	12	0.615 _{±0.049±0.004}
	2008.07.30	54 677.958	1.37	553	558	30.08	156.84	13	0.629 _{±0.048±0.004}

φ = 0.666 ± 0.006	2008.08.05	54 683.928	1.10	554	559	30.29	159.25	12	0.619 _{±0.030±0.004}
	2008.08.05	54 683.974	2.18	507	510	29.24	149.68	6	0.544 _{±0.096±0.004}

φ = 0.821 ± 0.012	2014.10.24	56 954.792	2.99	570	585	28.10	142.69	20	0.655 _{±0.033±0.001}
	2014.10.24	56 954.792	2.99	730	750	28.10	142.70	23	0.752 _{±0.033±0.001}
	2014.10.24	56 954.812	3.49	695	710	27.25	138.53	24	0.720 _{±0.030±0.001}

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