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Report on JWST Science Working Group Tucson, 10-11 Feb 2004

Report on JWST Science Working Group Tucson, 10-11 Feb 2004. Major news. No intention of accelerating the schedule. A list of items suitable for risk reduction is being prepared by the JWST project and were briefly discussed by the SWG. Instruments ok. JWST Field of View Layout. Major news.

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Report on JWST Science Working Group Tucson, 10-11 Feb 2004

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  1. Report on JWST Science Working GroupTucson,10-11 Feb 2004

  2. Major news • No intention of accelerating the schedule. A list of items suitable for risk reduction is being prepared by the JWST project and were briefly discussed by the SWG. • Instruments ok.

  3. JWST Field of View Layout

  4. Major news • No intention of accelerating the schedule. A list of items suitable for risk reduction is being prepared by the JWST project. • Instruments ok.

  5. Major news • No intention of accelerating the schedule. A list of items suitable for risk reduction is being prepared by the JWST project. • Instruments ok. • NIRCam : PIL is #1 risk reduction item. Tip-tilt focus mechanism.

  6. Pupil Imaging Lens would go here. One half of NIRCam NIRCam OTE Pick-off mirror and Tip-tilt-focus mech.

  7. Major news • No intention of accelerating the schedule. A list of items suitable for risk reduction is being prepared by the JWST project. • Instruments ok. • NIRCam : PIL is #1 risk reduction item. Tip-tilt focus mechanism. • NIRSpec: issue of pupil shear, potential loss of sensitivity in NIRSpec 14-15% for 5% shear. Swiss company has produced cryogenic mechanical slit selector (backup to MEMS)  SWG will carry out trade study for 1/10/100 slitsby June 04 • MIRI: shear also an issue for coronagraph. Extra background at >20mm. • FGS-TF: the SWG voted for uninterrupted wavelength coverage up to 5 mm. • Survey Fields

  8. Backgrounds – South galactic cap Red = galactic dust, green = ecliptic declination, blue = selected fields (low dust, no bright stars, galaxies, radiosources)

  9. Backgrounds – South galactic cap Red = galactic dust, green = ecliptic declination, blue = existing fields (symbol size proportional to quality)

  10. Major news – cont’d • Discussion on need for some form of science parallels • Long discussion about HST-JWST Legacy • JWST science may require visible imaging data • How do we make sure those data are there when needed? • Full range of opinions (from do nothing to ask for a fraction of HST time to be set aside). • Too early for promising a JWST Quick look survey • Agreement on doing nothing but informing the user community about what JWST can and cannot do and where in the sky • Write a JWST Mini-handbook (?)

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