Improved photometric calibration of the SNLS and the SDSS supernova surveys

M. Betoule; J. Marriner; N. Regnault; J.-C. Cuillandre; P. Astier; J. Guy; C. Balland; P. El Hage; D. Hardin; R. Kessler; L. Le Guillou; J. Mosher; R. Pain; P.-F. Rocci; M. Sako; K. Schahmaneche

doi:10.1051/0004-6361/201220610

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Volume 552 (April 2013)

A&A, 552 (2013) A124

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Table 23

SDSS and SNLS combined AB offsets.

Band	u _M	g _M	R _m	i _M	i2_M	z _M	u	g	r	i	z

δ _ab	0.011	–0.000	0.001	–0.006	–0.007	0.014	0.068	–0.020	–0.005	–0.018	–0.010
σ	0.0145	0.0035	0.0051	0.0042	0.0043	0.0069	0.0089	0.0050	0.0031	0.0039	0.0060

With perfect passbands^a	0.0122	0.0033	0.0033	0.0041	0.0041	0.0069	0.0059	0.0040	0.0030	0.0039	0.0060
With perfect reference^b	0.0144	0.0031	0.0046	0.0029	0.0030	0.0044	0.0086	0.0047	0.0022	0.0024	0.0029

Notes.Figures are given in magnitudes.

^(a)

Remaining uncertainty on the AB calibration when assuming that the passband measurements are perfect.

^(b)

Remaining uncertainty on the AB calibration when assuming that the STIS spectra are perfect.

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