COSMOGRAIL: the COSmological MOnitoring of GRAvItational Lenses - XII. Time delays of the doubly lensed quasars SDSS J1206+4332 and HS 2209+1914

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COSMOGRAIL: the COSmological MOnitoring of GRAvItational Lenses - XII. Time delays of the doubly lensed quasars SDSS J1206+4332 and HS 2209+1914 | Astronomy & Astrophysics (A&A)

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Volume 553 (May 2013)

A&A, 553 (2013) A121

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Fig. 6

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Part of the field of view around HS 2209+1914. It is a combination of 49 frames taken at the Mercator telescope with a seeing . The stars used to model the PSF are labelled 1 to 4. All but the last one are also used to calculate the normalization coefficient. North is up and east is left.

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