KIC 4150611: a rare multi-eclipsing quintuple with a hybrid pulsator

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Volume 602 (June 2017)

A&A, 602 (2017) A30

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Table 2

Log and results of Keck II/NIRC2 observations.

MJD	Date	Filter	N_exp	t_int	Co-adds	PI
		combination		[s]

56 458.61442	2013-06-15	PK50_1.5+Brγ	15	1.0	5	Marcy
56 845.42700	2014-07-07	PK50_1.5+Kcont	6	12.5	25	Knutson
56 845.43081		PK50_1.5+Jcont	6	12.5	50
56 845.43408		PK50_1.5+Hcont	6	12.5	50
57 643.28633^a	2016-09-11	PK50_1.5+Kcont	5	12.5	25	Baranec
57 677.24852	2016-10-15	PK50_1.5+Kcont	8^b	30/60	30/60	Baranec
57 677.25537		K+clear	3^c	1.81/18.1	10/100

MJD	ρ_AB	θ_AB	ρ_AC	θ_AC	Δmag_AB	Δmag_AC
	[mas]	[°]	[mas]	[°]	[mag]	[mag]

56 458.61442	1151.51(39)	203.279(16)	3279.7(3.8)	287.794(71)	1.087(5)	5.00(13)
56 845.42700	1146.17(11)	203.503(12)	3266.48(33)	288.002(13)	1.104(5)	5.139(47)
56845.43081	1146.24(9)	203.509(13)	3267.28(67)	287.987(15)	1.368(7)	5.266(55)
56 845.43408	1146.42(8)	203.515(11)	3267.47(69)	287.990(15)	1.133(7)	5.168(22)
57 643.28633^a	1131.76(20)	203.053(36)	3226(12)	287.862(47)	1.099(7)	5.3(2)
57 677.24852	1134.30(22)	203.490(22)	3242.38(52)	288.284(20)	1.125(5)	5.180(30)
57 677.25537	1134.67(39)	203.468(22)	3243.17(87)	288.290(26)	1.052(2)	5.053(34)

Notes. We show the date, filters (combination of two wheels), total number of exposures (N_exp), integration time per exposure (t_int), and number of co-adds per exposure. In the lower part of the table we show angular separations (ρ) and position angles (θ) of stars B and C relatively to A, and their magnitude differences.

^(a)

Observations with bad AO correction. Results were not used in the further analysis.

^(b)

The first two frames are composed of 30 co-adds (1 s each), while the following six are composed of 60 co-adds (also 1 s).

^(c)

The first frame is composed of ten co-adds (0.181 s each), while the following two are composed of 100 co-adds (also 0.181 s).

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