GGTauJ

Explanation of image.

Telescope: CFHT F/36 Cassegrain focus.
Date: December 1996
Instrument: QUIRC + UH 13 elements AO system
Wavelength: J band
Total exposure:
Scale:
Orientation: North is up. East is left.
Observers: C. Roddier, F. Roddier, M. Northcott, J.E. Graves
Young stars are believed to be surrounded with a disk of orbiting material. The material eventually condenses and forms planets and asteroids. In the case of a binary star, the companion sweeps away part of the material creating a cavity inside the disk. This is the first image of such a cavity. Light inside a small region surrounding the central binary star has been attenuated by a factor 1000. Intensity levels in the upper right boxes are 0.001, 0.0001, and 0.00001 that of the maximum central intensity.