Images of the disk of TW Hydrae made at two wavelengths with the NICMOS camera on the Hubble Space Telescope. A point spread function reference star has been subtracted off to remove scattered and diffracted light from the central star.
At each wavelength, the data were taken at two telescope orientations. The tapered black areas are regions obscured by the telescope's diffraction spikes in both orientations.
Both images are shown with a natural logarithmic stretch and on the same spatial scale and orientation. This stretch is employed since the disk falls off as a power law and so it highlights the outer disk. The size and location of the coronagraph is marked with the central gray circle.