Left: a high-resolution 1.3 mm continuum image toward the MC 27 protostar with a Briggs weighting at a robust parameter of −1 (see Section 2). The contour levels are [3, 4, 5, 10]σ noise levels from the lowest level. The white ellipse in the lower left corner gives the angular resolution. Right: residual image subtracting the Gaussian component in the left panel. The dotted ellipses in both panels show the fitted component whose observed major and minor FWHMs are 0.″058 and 0.″025, respectively, with a PA of 168.°5 (see the text in Section 3).