David Gilmore (Stanford U), "Updates from NRO/NASA-WFIRST, the current NASA/NSF Budget Scenario, and the LSST f/1.2 Beam and Image Simulators"

jeudi 20 déc. 2012, 11:00 → 12:00 Europe/Paris

LPNHE

I will review the scientific, technical, and programmatic issues related to the use of an National Reconnaissance Office (NRO) 2.4m telescope to the WFIRST initiative of the 2010 Decadal Survey with details on current configuration and potential science. Part of the potential NRO/NASA telescope development depends on the current funding landscape for NASA and the NSF. Recent budgetary history and future trends for these two agencies will be addressed from the US Congressional Budget Office (CBO) report from March 2012 including options for reducing the budget. Two LSST projects will be reviewed: The first will be the f/1.2 beam simulator that simulates the beam of the LSST optics, including an object mask, the sky background, camera obscuration, and provides a nearly diffraction limited image over a 60 mm diameter field covering an entire 4000x4000 ten micron pixel CCD. The PSF FWHM is specified to be 5 microns. The optical design and predicted performance will be reviewed. The second LSST related presentation will be an update of the Image Simulator. I will show the current atmospheric, optics, filter and detector components of the simulator and, using a Subaru catalog image, will show how the simulator is currently configured with the display of the output model .