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Evaluation of the Implementation of WFIRST/AFTA in the Context of New Worlds, New Horizons in Astronomy and Astrophysics (2014) / Chapter Skim
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Introduction
Pages 5-9

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From page 5...
... NWNH ranked WFIRST as the highest-priority recommendation for large space missions due to the compelling science, but also 1   National Research Council, New Worlds, New Horizons in Astronomy and Astrophysics, The Na tional Academies Press, Washington, D.C., 2010.
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From page 6...
... and WFIRST Project.2 This study recognized that the larger aperture was attractive for including a coronagraph on the baseline mission, which could potentially ad vance exoplanet objectives that were highly ranked in NWNH. 2   WFIRST-AFTA Science Definition Team and WFIRST Project, Wide-Field InfraRed Survey Tele scope Astrophysics Focused Telescope Assets: Final Report by the Science Definition Team (SDT)
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From page 7...
... Recommendations regarding the WFIRST implementation and program were made in the NWNH panel reports3 and, in particular, the Report of the Panel on Electromagnetic Observations from Space; however, not all of these recommendations were adopted in the main NWNH report. The current 3   National Research Council, Panel Reports -- New Worlds, New Horizons in Astronomy and Astro physics, The National Academies Press, Washington, D.C., 2011.
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From page 8...
... While the IFU is an additional instrument not envisioned for WFIRST by NWNH, its addition to AFTA enables the simplification of the instrument comple ment, with the removal of a guider and two instrument channels. The IFU ad ditionally reduces roll angle constraints, allowing for reduced solar array size and slightly simpler overall thermal design.
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From page 9...
... Spectrograph resolution Slitless, R = 180-270b IFU 1.1-2.0 microns R = 100 0.6-2.0 microns Spectrograph FOV 0.26 sq deg × 2 3′′ × 3.15′′ (for supernova and its host galaxy) Guider Prime: 2 pair HgCdTe No separate guider Auxiliary Fine Guidance Sensor (during spect)
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Key Terms

  • science definition
  • infrared survey
  • survey telescope
  • focused telescope
  • reference mission

  • design reference
  • diffraction limited
  • nasa science
  • wfirst mission
  • astrophysics focused

  • decadal survey
  • technical complexity
  • separate guider
  • hardware implementation
  • nology development

  • dark energy
  • pixel scale
  • microns spectrograph
  • programmatic rationale
  • solar array

  • science mission
  • telescope science
  • space mission
  • science objectives
  • mission design

  • nwnh survey
  • compelling science
  • idrm science
  • science programs
  • include exoplanet


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