Supernovae without host galaxies? - The low surface brightness host of SN 2009Z

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Table 1

Photometric data points used in this work and its sources.

Band	mag	mag error	Source

FUV	20.56	0.07	GALEX AIS^a re-measured
NUV	20.30	0.06	GALEX AIS^a re-measured
u	20.39	upper limit^c	SDSS DR6^b
g	18.71	0.03	SDSS DR6^b
r	18.57	0.04	SDSS DR6^b
i	18.09	0.04	SDSS DR6^b
z	18.13	upper limit^c	SDSS DR6^b

Notes. .

^(a)

Milliard et al. (2001), fluxes were re-extracted to ensure the same aperture radius as for the optical data.

^(b)

Adelman-McCarthy et al. (2008)

^(c)

Because the u- and z-band SDSS images are of low signal-to-noise (S/N), no detection of N271 could be made down to the 2.5σ level, hence these values are not used when fitting the SED.

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