The Spitzer search for the transits of HARPS low-mass planets - II. Null results for 19 planets

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Volume 601 (May 2017)

A&A, 601 (2017) A117

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Table A.5

Details of our Warm Spitzer data and their analysis for targets 1–3.

Star	BD -061339	HD 1461	HD 10180

Program ID	90072	(1): 80220¹	(1): 60027
		(2): 90072	(2) & (3): 90072
Observation date	2013-11-30	(1): 2011-08-31	(1): 2010-01-16
		(2): 2013-09-13	(2) : 2013-08-10
			(3): 2013-09-09
Channel [μm]	4.5	4.5	(1): 3.6
			(2) & (3): 4.5
AOR(s)^a	(S1): 48815616	(1): 42790656	(1): 38139392
	(1): 48815360	(S2): 48816128	(S2): 48596224
	(2): 48815104	(2): 48815872	(2): 48595968
			(S3): 48595712
			(3): 48595456
Spitzer pipeline version	S19.1.0	S19.1.0	(1): S18.18.0
			(2) & (3): S19.1.0
Exposure time [s]	0.4	0.1	0.1
N _BCD ^b	(1):1038	(1): 5548	(1): 4400
	(2): 970	(2): 3600	(2) & (3): 3175
Duration [h]	(1): 7.9	(1): 12.9	(1): 10.4
	(2): 7.4	(2): 8.4	(2) & (3): 7.4
Photometric aperture [pixels]	(1) & (2): 3.5	(1) & (2): 3.5	(1): 3
			(2): 2.5
			(3): 3
Baseline model^c	(1): p(w_x + [xy] ²) +BM	(1): +BM	(1): + BM
	(2): p(w_x + w_y + [xy] ²) + BM	(2): p(w_x + [xy] ²) + BM	(2): p(w_x + [xy] ² + l²) + BM
			(3): p(w_x + w_y + [xy] ² + l) + BM
Error correction factors^d	(1): β_w = 0.94, β_r = 1.21	(1): β_w = 0.97, β_r = 1.91	(1): β_w = 0.95, β_r = 1.62
	(2): β_w = 0.91, β_r = 1.24	(2): β_w = 0.94, β_r = 1.34	(2): β_w = 0.97, β_r = 1.26
			(3): β_w = 0.99, β_r = 1.42

Notes.

^(a)

AOR = astronomical observation request = Spitzer observing sequence. (S) designates a short pre-run AOR performed to stabilize the pointing and instrument.

^(b)

BCD = Basic Calibrated Data = block of 64 Spitzer/IRAC subarray exposures.

^(c)

For the baseline model, p(ϵ^N) denotes, respectively, an N-order polynomial function of the logarithm of time (ϵ = l), of the PSF x- and y-positions (ϵ = [xy]), and widths (ϵ = w_x & w_y). BM=BLISS mapping.

^(d)

See Sect. 4.

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