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Modern Universe Space Telescope Visions 2003 Proposal. Dennis Ebbets Ball Aerospace UV Optical Space Telescope Workshop STScI February 26, 2004. We learned this week that our proposal has been selected. Jim Green – PI John Bally Bob Brown Dennis Ebbets Wendy Freedman John Grunsfeld

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modern universe space telescope visions 2003 proposal

Modern Universe Space TelescopeVisions 2003 Proposal

Dennis Ebbets

Ball Aerospace

UV Optical Space Telescope Workshop

STScI

February 26, 2004

we learned this week that our proposal has been selected
We learned this week that our proposal has been selected
  • Jim Green – PI
  • John Bally
  • Bob Brown
  • Dennis Ebbets
  • Wendy Freedman
  • John Grunsfeld
  • John Huchra
  • Steve Kilston
  • Jon Morse
  • Bob O’Connell
  • Mike Shull
  • Ossy Siegmund
  • Erik Wilkinson

The proposal for the Visions 2003 opportunity had heritage in the SUVO concept that had been discussed in previous workshops and white papers.

A 10m class space telescope optimized for UV & optical observing.

products of the proposed study
Products of the proposed study
  • Scientific rationale
  • Instrument capabilities
  • Baseline instruments
  • Baseline mission architecture
  • Astronaut servicing
  • Risk elements
  • Safety aspects
four fundamental scientific themes will drive the study
Four fundamental scientific themes will drive the study
  • How are heavy elements created and distributed through the modern universe?
  • How are modern galaxies assembled, and how do they evolve?
  • How do stars and planetary systems form, and how does this impact their likelihood of supporting life?
  • Where are the baryons in the modern universe, and how are they distributed?
we offered to include the larger uv optical community in the study
We offered to include the larger UV optical community in the study
  • Workshop at June AAS meeting in Denver
  • Telecons
  • Other white papers, reports
  • Communication with team members
candidate observing programs will establish science requirements
Candidate observing programs will establish science requirements
  • Wavelength range
  • Field of view, field of regard
  • Angular resolution
  • Observing modes
    • Imaging, bandpasses
    • Spectroscopy, spectral resolution
    • Coronography, angular regimes, contrast
  • Sensitivity, S/N
  • Data rates and volumes
  • Mission lifetime
trade study will identify at least one credible telescope architecture
Trade study will identify at least one credible telescope architecture
  • Monolithic, segmented
  • Deployable, assembled in space
  • Filled, annular, sparse apertures
  • Prescription
  • Physical size
  • Alignment, phase control, LOS stabilization
  • Materials, coatings
  • Structures, mechanisms
  • Manufacturing, I&T issues
imaging needs will define requirements on cameras
Imaging needs will define requirements on cameras
  • Fields of view
  • Wavelength ranges and resolutions
  • Spatial resolution
  • Multiplexing approaches
    • Field sharing (HST, SST)
    • Wavelength splitting (JWST NIRCAM)
    • Detector sharing (STIS)
  • Sensitivity & S/N
science goals will suggest spectroscopic capabilities
Science goals will suggest spectroscopic capabilities
  • Wavelength range
  • Spectral resolution
  • Spatial resolution
  • Multi-object capability
  • Integral field capability
  • Sensitivity & S/N
the scientific potential of a coronagraph will be evaluated
The scientific potential of a coronagraph will be evaluated
  • Scientific applications to galactic nuclei, circumstellar environments, exoplanets
  • Inner and outer working angles
  • Contrast needed
  • Implications for optical design, figure quality, wave-front accuracy
opportunities for advancements in detector technology
Opportunities for advancements in detector technology
  • Identify how detector performance (QE, noise) enters into system performance trades.
  • Physical sizes required, number of pixels
  • Photon counting vs integrating, photocathode materials, readout approaches
orbit launcher size operations lifetime trades
Orbit, launcher, size, operations, lifetime trades
  • LEO, low & high inclination, ISS
  • Geosynchronous
  • Non-synchronous HEO, molniya, Chandra
  • Heliocentric, L2, drift-away
  • Lunar
an interesting challenge will be to think about how nasa s exploration theme affects this mission
An interesting challenge will be to think about how NASA’s exploration theme affects this mission
  • Launch vehicle availability
  • ISS, astronaut involvement
  • New technologies for robotic operations, power, communications might become available
  • Other infrastructure issues
  • Where will this kind of astrophysics fit into NASA’s mission and planning?