March 06, 2016

"At the Palomar Observatory near San Diego, astronomers are busy tinkering with a high-tech instrument that could discover a variety of objects both far from Earth and closer to home."

NASA JPL: The Caltech HIgh-speed Multi-color camERA (CHIMERA) system is looking for objects in the Kuiper Belt, the band of icy bodies beyond the orbit of Neptune that includes Pluto. by Elizabeth Landau

'It can also detect near-Earth asteroids and exotic forms of stars. Scientists at NASA's Jet Propulsion Laboratory and the California Institute of Technology, both in Pasadena, are collaborating on this instrument.

'"The Kuiper Belt is a pristine remnant of the formation of our solar system," said Gregg Hallinan, CHIMERA principal investigator at Caltech. "By studying it, we can learn a large amount about how our solar system formed and how it's continuing to evolve."

'The wide-field telescope camera system allows scientists to monitor thousands of stars simultaneously to see if a Kuiper Belt object passes in front of any of them. Such an object would diminish a star's light for only one-tenth of a second while traveling by, meaning a camera has to be fast in order to capture it.

'"Each of CHIMERA's cameras will be taking 40 frames per second, allowing us to measure the distinct diffraction pattern in the wavelengths of light to which they are sensitive," said Leon Harding, CHIMERA instrument scientist at JPL. "This high-speed imaging technique will enable us to find new Kuiper Belt objects far less massive in size than any other ground-based survey to date."'

"CHIMERA: a wide-field, multi-colour, high-speed photometer at the prime focus of the Hale telescope" BY L. K. Harding, G. Hallinan, J. Milburn, P. Gardner, N. Konidaris, N. Singh, M. Shao, J. Sandhu, G. Kyne, and H. E. Schlichting here

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