At left are the layers of the NRAO Tee Shirt showing the MIT Green Bank
Gravitational Lens found by Langston et al 1990.
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High-resolution radiointerferometric observations of MG1654 + 1346, a radio quasar in near-perfect alignment with an elliptical galaxy have been made. It is shown that radio emission is distorted into a narrow Einstein ring that lies within a diamond-shaped region bounded by caustic lines. From the details of the ring structure, a new model for the lensing geometry is deduced which leads to a more accurate estimate of the mass of the lensing galaxy.
|A galaxy image was taken from the NASA photo archive. This image is public domain.|
|The radio emission was first detected using the NRAO 300ft telescope in Green Bank, WV. The Einstein Ring image is from VLA observations at 6cm. The ring diameter is 2 arc seconds.|
|Helvetica font was used for this text.|
|A new post card design is being developed. This design shows the Robert C. Byrd Green Bank Telescope, the mountains of West Virgina, the Galactic Plane A (it> Langston etal 2000, A.J., vol 119, pg 2801) radio wavelength (4cm) image of the Milky Way Galaxy and stars in the Milky Way.|
|An alternative T-shirt design was proposed in 2000. This would make a great post card.|