The Nancy Grace Roman Space Telescope (formerly known as WFIRST, Wide Field Infrared Survey Telescope) was the top priority large-scale space initiative resulting from the
Astro2010 Decadal Survey 'New Worlds, New Horizons in Astronomy and Astrophysics.'
The mission was named after Nancy Grace Roman in May 2020.
Learn more about the historic occasion
here.
Recent Site Updates
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Simulated direct Nancy Grace Roman Space Telescope F160W image, 7.5 x 3.75 arc-minutes on a side.Simulated image of a sky scene at 1.6 microns (WFC3 F160W band) taking into account the observed Hα and stellar luminosity functions, the Hα equivalent width distribution, a model of stellar density in the Galaxy and background galaxy number counts. -
Simulated Nancy Grace Roman Space Telescope near-IR grism image that matches the direct image with nominal dispersion.Simulated grism image of the previous direct image field with nominal (10.8Å/pixel) dispersion, covering 1 to 1.9 microns. -
Nancy Grace Roman Space Telescope WFI Field of View
compared to HST and JWST.Field of view comparison, to scale, of the Nancy Grace Roman Space Telescope wide field instrument with wide field instruments on the Hubble and James Webb Space Telescopes. Each square is a 4k x 4k HgCdTe sensor array. The field of view is 0.28 degrees2. 2015 SDT Report. -
Simulated Nancy Grace Roman Space Telescope coronagraph image of 47 Ursae Majoris, showing two detected planets.Simulated Nancy Grace Roman Space Telescope coronagraph image of the star 47 Ursae Majoris, showing two directly detected planets. Simulation parameters: 10 hr exposure time, 525-580 nm, Hybrid Lyot Coronagraph. Field of view of 1.36". 2015 SDT Report. -
Simulated albedo spectrum for Neptune analogA theoretical albedo spectrum using data from the Cahoy et al. 2010 models. Such simulations help assess the detectability of exoplanets in reflected light by the Nancy Grace Roman Space Telescope Coronagraph Instrument, the feasibility of discriminating exoplanets from background stars and galaxies, and exoplanet yields. -
Microlensing light curve models compared to simulated Nancy Grace Roman Space Telescope dataFigure shows Nancy Grace Roman Space Telescope simulated data in black, and the best fit models generated using the pyLIMA, MuLensModel and muLAn microlensing software packages. This figure is generated at the end of the tutorial python notebook available on this site.
Important Dates
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