Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aas...20916910g&link_type=abstract
2007 AAS/AAPT Joint Meeting, American Astronomical Society Meeting 209, #169.10; Bulletin of the American Astronomical Society,
Astronomy and Astrophysics
Astronomy
Scientific paper
New Worlds Observer is an external occulter concept designed to detect optical wavelength light from Earth-like planets around solar neighborhood stars. The telescope spacecraft operates in the “shadow” cast by the occulter spacecraft, which suppresses the central starlight by a factor of greater than 1010. The geometric and optical characteristics of this shadow are described here with respect to the occulter size, occulter shape, and telescope to occulter separation. Imaging of the exo-planet is discussed, and the effective point spread function of the occulter is given, with a discussion on the expected exo-planet throughput. We also give a brief discussion of the spectroscopy that might be done with the occulter, including possible instrument configurations and the expected spectroscopic signal to noise as a function of integration time, for various absorption lines of interest.
Cash Webster
Glassman Tiffany Michelle
Lo Amy
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