• Publications
  • Influence
Detection of Earth-like planets around nearby stars using a petal-shaped occulter
  • W. Cash
  • Physics, Medicine
  • Nature
  • 6 July 2006
Direct observation of Earth-like planets is extremely challenging, because their parent stars are about 1010 times brighter but lie just a fraction of an arcsecond away. In space, the twinkle of theExpand
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CONSTRUCTION OF AN EARTH MODEL: ANALYSIS OF EXOPLANET LIGHT CURVES AND MAPPING THE NEXT EARTH WITH THE NEW WORLDS OBSERVER
The orbital light curve of a terrestrial exoplanet will likely contain valuable information about the surface and atmospheric features of the planet, both in its overall shape and hourly variations.Expand
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Laboratory detection of X-ray fringes with a grazing-incidence interferometer
Starting with Galileo's observations of the Solar System, improvements of an order of magnitude in either the sensitivity or resolution of astronomical instruments have always brought revolutionaryExpand
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Concurrent avian malaria and avipox virus infection in translocated South Island saddlebacks (Philesturnus carunculatus carunculatus)
Abstract CASE HISTORY: Outbreaks of mortality in South Island saddlebacks (Philesturnus carunculatus carunculatus) that had been translocated to two offshore islands in the Marlborough Sounds of NewExpand
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MAXIM Pathfinder x-ray interferometry mission
The MAXIM Pathfinder (MP) mission is under study as a scientific and technical stepping stone for the full MAXIM X-ray interferometry mission. While full MAXIM will resolve the event horizons ofExpand
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The New Worlds Observer: the astrophysics strategic mission concept study
We present the results of the Astrophysics Strategic Mission Concept Study for the New Worlds Observer (NWO). We show that the use of starshades is the most effective and affordable path to mappingExpand
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Echelle spectrographs at grazing incidence.
  • W. Cash
  • Physics, Medicine
  • Applied optics
  • 15 February 1982
It is shown that by using the conical diffraction mount existing echelle gratings can be used at grazing incidence to achieve high spectral resolution in the extreme UV and soft x rays. DesignExpand
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White-light demonstration of one hundred parts per billion irradiance suppression in air by new starshade occulters
A new mission concept for direct imaging of exo-solar planets called New Worlds Observer (NWO) has been proposed. It involves flying a meter-class space telescope in formation with a newly-conceived,Expand
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The anomalous extinction curve in the direction of Rho Ophiuchi from 950 to 1180 A
We report the interstellar extinction from 950 to 1180 A in the direction of Rho Oph. These data were obtained with a moderate-resolution sounding rocket observation of Ro Oph, and two lightlyExpand
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