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Table 4

Comparison of V-band continuum source size of QSO 2237 + 0305  (Sect. 5.2).

Reference Profile Estimator Size (1015 cm) R1/2 (1015 cm) M Velocity prior

This paper Gauss Median 17.6 (FWHM) 8.8 Gil-Merino et al. (2005)
This paper Uniform disc Median 17.4 (R) 12.3 Gil-Merino et al. (2005)
Poindexter et al. (2010b) Shakura-Sunyaev Median 5.8 (RV) 14.1 0.3 M Poindexter et al. (2010a)
Anguita et al. (2008) Gauss Most likely 4.6 (σV) 5.4 Uniform
Anguita et al. (2008) Gauss Most likely 1.3 (σV) 1.5 Gil-Merino et al. (2005)
Paper II Gauss Most likely 40 (FWHM) 20 Uniform
Paper II Gauss Most likely 9.2 (FWHM) 4.6 0.1 M Similar to Kochanek (2004)
Kochanek (2004) Shakura-Sunyaev Median 4.1 (RV) 10  [0.1,1]    M Sect. 2.3 of Kochanek (2004)
Kochanek (2004) Gauss Median 5.1 (σV) 5.9  [0.1,1]    M Sect. 2.3 of Kochanek (2004)

Notes. The reference is presented in Col. #1, the source profile used in Col. #2, and the published size estimate in Col. #4 (where R = radius of a uniform disc, RV = scale radius of a Shakura-Sunyaev accretion disc, σV and FWHM are resp. the standard deviation and the full width at half maximum of a Gaussian). These quantities have been converted to half-light radius R1/2 to allow comparison between profiles. Columns #6 & #7 provide the average mass of microlenses (⟨M⟩) used in the microlensing simulations and information regarding the velocity prior.

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