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.1

Observing log with the E1E2 baseline.

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

φ = 0.180 ± 0.006	2013.10.26	56 591.755	2.19	535	555	65.85	–149.17	5	0.226 _{±0.050±0.003}
	2013.10.26	56 591.755	2.19	710	730	65.85	–149.16	7	0.352 _{±0.050±0.003}
	2013.10.26	56 591.755	2.19	725	745	65.85	–149.16	9	0.438 _{±0.050±0.003}
	2013.10.26	56 591.770	2.55	535	555	65.79	–153.92	4	0.186 _{±0.050±0.003}
	2013.10.26	56 591.770	2.55	710	730	65.79	–153.91	6	0.300 _{±0.050±0.002}
	2013.10.26	56 591.770	2.55	725	745	65.79	–153.91	7	0.350 _{±0.050±0.003}
	2013.10.26	56 591.785	2.91	535	555	65.72	–158.70	3	0.161 _{±0.050±0.002}
	2013.10.26	56 591.785	2.91	710	730	65.72	–158.70	7	0.344 _{±0.050±0.003}
	2013.10.26	56 591.785	2.91	725	745	65.72	–158.70	7	0.365 _{±0.050±0.003}
	2014.07.05	56 843.917	–1.27	730	750	62.08	–106.85	6	0.320 _{±0.050±0.002}
	2014.07.05	56 843.933	–0.87	730	750	63.14	–111.65	4	0.354 _{±0.050±0.002}
	2014.07.05	56 843.958	–0.17	490	510	64.52	–120.01	2	0.116 _{±0.050±0.002}
	2014.07.05	56 843.958	–0.16	660	680	64.53	–120.02	5	0.230 _{±0.050±0.002}
	2014.07.05	56 843.979	0.26	490	510	65.09	–125.08	2	0.121 _{±0.050±0.002}
	2014.07.05	56 843.979	0.26	660	680	65.10	–125.09	5	0.231 _{±0.050±0.002}

φ = 0.192 ± 0.015	2012.09.24	56 194.645	–2.49	547	560	57.61	–91.87	7	0.241 _{±0.050±0.002}
	2012.09.24	56 194.645	–2.51	710	730	57.53	–91.65	28	0.457 _{±0.050±0.002}
	2012.09.24	56 194.645	–2.51	730	750	57.53	–91.65	25	0.498 _{±0.050±0.003}
	2012.09.24	56 194.760	0.26	532	547	65.10	–125.10	9	0.146 _{±0.050±0.002}
	2012.09.24	56 194.760	0.26	547	560	65.10	–125.10	10	0.127 _{±0.050±0.002}
	2012.09.24	56 194.760	0.26	710	730	65.09	–125.06	39	0.366 _{±0.050±0.003}
	2012.09.24	56 194.760	0.26	730	750	65.09	–125.06	28	0.387 _{±0.050±0.003}

φ = 0.292 ± 0.009	2014.07.11	56 849.865	–2.14	585	600	59.09	–96.30	12	0.312 _{±0.025±0.003}
	2014.07.11	56 849.865	–2.14	730	750	59.08	–96.26	12	0.454 _{±0.039±0.002}
	2014.07.11	56 849.876	–1.87	585	600	60.10	–99.54	10	0.225 _{±0.023±0.002}
	2014.07.11	56 849.876	–1.88	730	750	60.09	–99.51	12	0.387 _{±0.033±0.002}
	2014.07.11	56 849.931	–0.57	660	680	63.80	–115.21	12	0.262 _{±0.022±0.002}
	2014.07.11	56 849.944	–0.24	660	680	64.40	–119.09	8	0.286 _{±0.036±0.002}
	2014.07.11	56 849.972	0.45	610	630	65.30	–127.45	7	0.269 _{±0.037±0.003}
	2014.07.11	56 849.984	0.72	610	630	65.52	–130.73	6	0.177 _{±0.027±0.002}
	2014.07.11	56 849.984	0.72	630	650	65.52	–130.73	6	0.225 _{±0.039±0.002}

φ = 0.401 ± 0.003	2012.08.29	56 168.980	3.91	700	720	65.51	–172.09	22	0.290 _{±0.013±0.002}
	2012.08.29	56 168.980	3.91	720	740	65.51	–172.09	29	0.362 _{±0.012±0.003}
	2012.08.29	56 169.013	4.70	700	720	65.47	177.14	18	0.309 _{±0.017±0.002}
	2012.08.29	56 169.013	4.70	720	740	65.47	177.14	24	0.379 _{±0.016±0.003}

φ = 0.526 ± 0.001	2013.07.23	56 497.003	1.90	525	540	65.87	–145.43	3	0.094 _{±0.036±0.001}
	2013.07.23	56 497.003	1.90	540	555	65.87	–145.43	12	0.133 _{±0.011±0.002}
	2013.07.23	56 497.003	1.90	710	730	65.87	–145.43	11	0.307 _{±0.029±0.002}
	2014.07.07	56 845.819	–3.51	514	527	52.67	–78.48	9	0.307 _{±0.036±0.003}
	2014.07.07	56 845.819	–3.51	527	542	52.67	–78.48	7	0.264 _{±0.038±0.002}
	2014.07.07	56 845.819	–3.51	695	715	52.66	–78.46	14	0.508 _{±0.036±0.003}
	2014.07.07	56 845.831	–3.26	514	527	53.95	–81.85	8	0.241 _{±0.029±0.002}
	2014.07.07	56 845.831	–3.26	527	542	53.95	–81.85	10	0.268 _{±0.026±0.002}
	2014.07.07	56 845.831	–3.26	695	715	53.94	–81.84	15	0.454 _{±0.029±0.002}

φ = 0.627 ± 0.017	2013.10.23	56 588.841	4.12	710	730	65.50	–174.91	10	0.377 _{±0.039±0.003}
	2013.10.23	56 588.841	4.12	725	740	65.50	–174.91	10	0.361 _{±0.038±0.003}
	2013.10.23	56 588.877	4.91	710	730	65.50	174.27	9	0.331 _{±0.036±0.003}
	2013.10.23	56 588.877	4.91	725	740	65.50	174.27	14	0.367 _{±0.027±0.003}
	2014.07.02	56 840.912	–1.51	580	595	61.35	–103.99	4	0.197 _{±0.050±0.002}
	2014.07.02	56 840.912	–1.51	730	750	61.35	–103.98	7	0.354 _{±0.050±0.002}
	2014.07.02	56 840.930	–1.13	580	595	62.46	–108.48	4	0.207 _{±0.050±0.002}
	2014.07.02	56 840.930	–1.13	730	750	62.46	–108.47	7	0.349 _{±0.050±0.002}

φ = 0.741 ± 0.003	2012.09.27	56 197.642	–2.40	532	547	58.02	–93.06	11	0.272 _{±0.024±0.003}
	2012.09.27	56 197.642	–2.40	547	560	58.02	–93.06	12	0.277 _{±0.022±0.003}
	2012.09.27	56 197.642	–2.42	710	730	57.92	–92.79	33	0.459 _{±0.014±0.003}
	2012.09.27	56 197.642	–2.42	730	750	57.92	–92.79	28	0.516 _{±0.018±0.003}
	2012.09.27	56 197.665	–1.79	532	547	60.39	–100.54	14	0.280 _{±0.020±0.003}
	2012.09.27	56 197.665	–1.79	547	560	60.39	–100.54	17	0.297 _{±0.018±0.003}
	2012.09.27	56 197.665	–1.80	710	730	60.37	–100.47	30	0.459 _{±0.015±0.003}
	2012.09.27	56 197.665	–1.80	730	750	60.37	–100.47	19	0.507 _{±0.026±0.003}

φ = 0.783 ± 0.002	2013.10.24	56 589.603	–1.61	547	562	61.03	–102.77	12	0.275 _{±0.022±0.003}
	2013.10.24	56 589.603	–1.61	705	725	61.03	–102.77	18	0.424 _{±0.023±0.003}
	2013.10.24	56 589.603	–1.61	710	730	61.03	–102.77	26	0.430 _{±0.016±0.003}
	2013.10.24	56 589.603	–1.61	725	740	61.03	–102.77	18	0.509 _{±0.028±0.003}
	2013.10.24	56 589.603	–1.61	725	745	61.03	–102.77	22	0.461 _{±0.021±0.003}
	2013.10.24	56 589.615	–1.35	532	547	61.83	–105.83	5	0.228 _{±0.050±0.003}
	2013.10.24	56 589.615	–1.35	705	725	61.83	–105.83	15	0.468 _{±0.031±0.003}
	2013.10.24	56 589.615	–1.35	710	730	61.83	–105.83	24	0.470 _{±0.019±0.003}
	2013.10.24	56 589.615	–1.35	725	740	61.83	–105.83	15	0.471 _{±0.031±0.003}
	2013.10.24	56 589.615	–1.35	725	745	61.83	–105.83	18	0.461 _{±0.026±0.003}
	2013.10.24	56 589.625	–1.07	532	547	62.64	–109.25	7	0.211 _{±0.030±0.002}
	2013.10.24	56 589.625	–1.07	705	725	62.64	–109.25	16	0.473 _{±0.029±0.003}
	2013.10.24	56 589.625	–1.07	710	730	62.64	–109.25	14	0.463 _{±0.033±0.003}
	2013.10.24	56 589.625	–1.07	725	740	62.64	–109.25	13	0.426 _{±0.034±0.003}
	2013.10.24	56 589.625	–1.07	725	745	62.64	–109.25	17	0.456 _{±0.027±0.003}

φ = 0.821 ± 0.012	2014.10.24	56 954.655	–0.29	570	585	64.32	–118.48	11	0.238 _{±0.021±0.003}
	2014.10.24	56 954.655	–0.29	730	750	64.32	–118.47	13	0.336 _{±0.025±0.002}
	2014.10.24	56 954.678	0.24	520	535	65.07	–124.85	7	0.145 _{±0.022±0.002}
	2014.10.24	56 954.678	0.24	695	710	65.07	–124.84	11	0.374 _{±0.033±0.003}
	2014.10.24	56 954.699	0.75	660	680	65.54	–131.04	17	0.297 _{±0.018±0.002}
	2014.10.24	56 954.724	1.35	610	630	65.82	–138.49	8	0.221 _{±0.027±0.002}

φ = 0.848 ± 0.007	2013.12.17	56 643.578	1.34	532	547	65.81	–138.43	6	0.224 _{±0.040±0.003}
	2013.12.17	56 643.578	1.34	535	555	65.81	–138.43	11	0.210 _{±0.020±0.003}
	2013.12.17	56 643.578	1.34	705	725	65.81	–138.41	16	0.321 _{±0.020±0.002}
	2013.12.17	56 643.578	1.34	725	745	65.81	–138.41	14	0.388 _{±0.027±0.003}
	2013.12.17	56 643.592	1.65	532	547	65.87	–142.23	6	0.239 _{±0.041±0.003}
	2013.12.17	56 643.592	1.65	535	555	65.87	–142.23	6	0.194 _{±0.031±0.003}
	2013.12.17	56 643.592	1.64	705	725	65.87	–142.21	11	0.274 _{±0.026±0.002}
	2013.12.17	56 643.592	1.64	725	745	65.87	–142.21	14	0.359 _{±0.026±0.003}
	2013.12.17	56 643.603	1.90	705	725	65.87	–145.54	9	0.304 _{±0.034±0.002}
	2013.12.17	56 643.614	2.16	532	547	65.86	–148.81	6	0.220 _{±0.037±0.003}
	2013.12.17	56 643.614	2.16	535	555	65.86	–148.81	7	0.208 _{±0.030±0.003}
	2013.12.17	56 643.614	2.16	705	725	65.86	–148.77	8	0.332 _{±0.040±0.003}
	2013.12.17	56 643.614	2.16	725	745	65.86	–148.77	8	0.300 _{±0.036±0.002}
	2013.12.17	56 643.624	2.42	705	725	65.82	–152.21	6	0.385 _{±0.062±0.003}
	2013.12.17	56 643.624	2.42	725	745	65.82	–152.21	6	0.379 _{±0.060±0.003}
	2013.12.17	56 643.644	2.91	532	547	65.72	–158.69	5	0.190 _{±0.040±0.002}
	2013.12.17	56 643.644	2.91	705	725	65.72	–158.66	9	0.386 _{±0.042±0.003}
	2013.12.17	56 643.676	3.67	535	555	65.56	–168.84	8	0.203 _{±0.026±0.003}
	2013.12.17	56 643.676	3.67	705	725	65.56	–168.81	12	0.357 _{±0.030±0.003}
	2013.12.17	56 643.676	3.67	725	745	65.56	–168.81	13	0.391 _{±0.031±0.003}
	2013.12.17	56 643.687	3.92	532	547	65.52	–172.21	8	0.266 _{±0.034±0.003}
	2013.12.17	56 643.687	3.92	535	555	65.52	–172.21	6	0.207 _{±0.032±0.003}
	2013.12.17	56 643.687	3.91	705	725	65.52	–172.18	13	0.390 _{±0.029±0.003}
	2013.12.17	56 643.687	3.91	725	745	65.52	–172.18	15	0.370 _{±0.024±0.003}

φ = 0.893 ± 0.005	2013.07.25	56 498.942	0.64	525	540	65.46	–129.77	8	0.174 _{±0.022±0.003}
	2013.07.25	56 498.942	0.64	540	555	65.46	–129.77	9	0.191 _{±0.021±0.003}
	2013.07.25	56 498.942	0.64	690	710	65.46	–129.77	16	0.287 _{±0.017±0.002}
	2013.07.25	56 498.942	0.64	710	730	65.46	–129.77	15	0.302 _{±0.020±0.002}
	2013.07.25	56 498.942	0.64	730	750	65.46	–129.77	15	0.361 _{±0.024±0.002}
	2013.07.25	56 498.961	1.04	525	540	65.71	–134.71	5	0.194 _{±0.037±0.003}
	2013.07.25	56 498.961	1.04	540	555	65.71	–134.71	7	0.247 _{±0.036±0.003}
	2013.07.25	56 498.961	1.04	690	710	65.71	–134.70	11	0.310 _{±0.027±0.002}
	2013.07.25	56 498.961	1.04	710	730	65.71	–134.70	11	0.307 _{±0.027±0.002}
	2013.07.25	56 498.961	1.04	730	750	65.71	–134.70	11	0.273 _{±0.026±0.002}
	2013.07.25	56 498.978	1.41	525	540	65.83	–139.32	7	0.221 _{±0.031±0.003}
	2013.07.25	56 498.978	1.41	540	555	65.83	–139.32	11	0.236 _{±0.022±0.003}
	2013.07.25	56 498.978	1.41	690	710	65.83	–139.31	17	0.299 _{±0.017±0.002}
	2013.07.25	56 498.978	1.41	710	730	65.83	–139.31	13	0.340 _{±0.025±0.002}
	2013.07.25	56 498.978	1.41	730	750	65.83	–139.31	20	0.297 _{±0.015±0.002}
	2013.07.25	56 498.988	1.67	525	540	65.87	–142.58	9	0.176 _{±0.020±0.002}
	2013.07.25	56 498.988	1.67	540	555	65.87	–142.58	12	0.208 _{±0.017±0.003}
	2013.07.25	56 498.988	1.67	690	710	65.87	–142.57	22	0.299 _{±0.014±0.002}
	2013.07.25	56 498.988	1.67	710	730	65.87	–142.57	15	0.337 _{±0.023±0.002}
	2013.07.25	56 498.988	1.67	730	750	65.87	–142.57	19	0.325 _{±0.017±0.002}
	2013.07.25	56 498.999	1.95	525	540	65.87	–146.15	11	0.211 _{±0.020±0.003}
	2013.07.25	56 498.999	1.95	540	555	65.87	–146.15	12	0.238 _{±0.019±0.003}
	2013.07.25	56 498.999	1.95	690	710	65.87	–146.14	21	0.330 _{±0.015±0.003}
	2013.07.25	56 498.999	1.95	710	730	65.87	–146.14	25	0.369 _{±0.015±0.003}
	2013.07.25	56 498.999	1.95	730	750	65.87	–146.14	18	0.337 _{±0.018±0.002}
	2013.07.25	56 499.010	2.16	525	540	65.86	–148.78	9	0.186 _{±0.020±0.003}
	2013.07.25	56 499.010	2.16	540	555	65.86	–148.78	10	0.197 _{±0.020±0.003}
	2013.07.25	56 499.010	2.16	690	710	65.86	–148.77	12	0.288 _{±0.025±0.002}
	2013.07.25	56 499.010	2.16	710	730	65.86	–148.77	13	0.330 _{±0.025±0.002}
	2013.07.25	56 499.010	2.16	730	750	65.86	–148.77	14	0.314 _{±0.022±0.002}

φ = 0.927 ± 0.003	2014.07.09	56 847.948	–0.29	580	595	64.33	–118.57	5	0.239 _{±0.050±0.002}
	2014.07.09	56 847.948	–0.29	735	755	64.33	–118.56	7	0.368 _{±0.050±0.002}
	2014.07.09	56 847.961	0.03	580	595	64.81	–122.35	4	0.212 _{±0.050±0.002}
	2014.07.09	56 847.961	0.03	735	755	64.81	–122.33	8	0.390 _{±0.050±0.002}
	2014.07.09	56 847.978	0.47	490	510	65.32	–127.66	3	0.173 _{±0.050±0.003}
	2014.07.09	56 847.978	0.47	660	680	65.32	–127.65	7	0.341 _{±0.050±0.003}
	2014.07.09	56 847.990	0.74	490	510	65.54	–130.97	4	0.181 _{±0.050±0.003}
	2014.07.09	56 847.990	0.74	660	680	65.53	–130.96	6	0.307 _{±0.050±0.003}

φ = 0.942 ± 0.007	2013.11.26	56 622.628	1.23	547	562	65.78	–137.04	4	0.181 _{±0.050±0.002}
	2013.11.26	56 622.628	1.23	705	725	65.78	–137.03	7	0.327 _{±0.050±0.002}
	2013.11.26	56 622.628	1.23	725	740	65.78	–137.03	6	0.316 _{±0.050±0.002}
	2013.11.26	56 622.644	1.58	547	562	65.86	–141.35	5	0.260 _{±0.050±0.003}
	2013.11.26	56 622.644	1.57	705	725	65.86	–141.26	6	0.313 _{±0.050±0.002}
	2013.11.26	56 622.644	1.57	725	740	65.86	–141.26	7	0.363 _{±0.050±0.003}
	2013.11.26	56 622.658	1.90	535	555	65.87	–145.46	2	0.118 _{±0.050±0.002}
	2013.11.26	56 622.658	1.90	547	562	65.87	–145.46	3	0.165 _{±0.050±0.002}
	2013.11.26	56 622.658	1.90	705	725	65.87	–145.45	6	0.284 _{±0.050±0.003}
	2013.11.26	56 622.658	1.90	725	740	65.87	–145.45	6	0.297 _{±0.050±0.002}
	2013.11.26	56 622.698	2.85	597	617	65.73	–157.82	4	0.214 _{±0.050±0.002}
	2013.11.26	56 622.698	2.85	617	637	65.73	–157.82	5	0.248 _{±0.050±0.002}
	2013.11.26	56 622.712	3.17	617	637	65.66	–162.08	6	0.313 _{±0.050±0.003}

φ = 0.999 ± 0.025	2013.10.25	56 590.620	–1.09	705	725	62.59	–109.03	16	0.430 _{±0.027±0.003}
	2013.10.25	56 590.620	–1.09	725	745	62.59	–109.03	17	0.469 _{±0.027±0.003}
	2013.10.25	56 590.841	4.20	532	547	65.49	–176.10	10	0.189 _{±0.019±0.002}
	2013.10.25	56 590.841	4.20	705	725	65.49	–176.09	19	0.372 _{±0.019±0.003}
	2013.10.25	56 590.841	4.20	725	745	65.49	–176.09	20	0.426 _{±0.022±0.003}
	2013.10.25	56 590.860	4.68	532	547	65.49	177.37	3	0.195 _{±0.024±0.003}
	2013.10.25	56 590.860	4.68	705	725	65.49	177.37	14	0.346 _{±0.024±0.003}
	2013.10.25	56 590.860	4.68	725	745	65.49	177.37	18	0.382 _{±0.025±0.003}

Notes. The columns give, respectively, the date, the RJD, the hour angle (HA), the minimum and maximum wavelengths over which the squared visibility is calculated, the projected baseline length Bp and its orientation PA, the signal-to-noise ratio on the fringe peak; the last column provides the calibrated squared visibility V² together with the statistic error on V², and the systematic error on V² (see text for details). The data are available on the Jean-Marie Mariotti Center OiDB service (http://oidb.jmmc.fr), and at the CDS.

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