HUBBLE SPACE TELESCOPE - Continuing to collect World Class Science   DAILY REPORT #4650   PERIOD COVERED: 5am July 10 - 5am July 11, 2008 (DOY192/0900z-193/0900z)   OBSERVATIONS SCHEDULED   ACS/SBC 11151   Evaluating the Role of Photoevaporation of Protoplanetary Disk Dispersal   Emission produced by accretion onto the central star leads to photoevaporation, which may play a fundamental role in disk dispersal. Models of disk photoevaporation by the central star are challenged by two po ...Continue Reading

HUBBLE SPACE TELESCOPE - Continuing to collect World Class Science DAILY REPORT #4647 PERIOD COVERED: 5am July 7 - 5am July 8, 2008 (DOY 189/0900z-190/0900z) OBSERVATIONS SCHEDULED ACS/SBC 11215 New Sightlines for the Study of Intergalactic Helium: Dozens of High-Confidence, UV-Bright Quasars from SDSS/GALEX The reionization of IGM helium is thought to have occurred at redshifts of z=3 to 4. Detailed study of HeII Lyman-alpha absorption toward a handful of QSOs at 2.7<z<3.3 demonstrated the high potentia ...Continue Reading

HUBBLE SPACE TELESCOPE - Continuing to collect World Class Science   DAILY REPORT    #4645   PERIOD COVERED: 5am July 2 - 5am July 3, 2008 (DOY 184/0900z-185/0900z)   OBSERVATIONS SCHEDULED   FGS 11210   The Architecture of Exoplanetary Systems   Are all planetary systems coplanar? Concordance cosmogony makes that prediction. It is, however, a prediction of extrasolar planetary system architecture as yet untested by direct observation for main sequence stars other than ...Continue Reading

HUBBLE SPACE TELESCOPE - Continuing to collect World Class Science DAILY REPORT    #4644 PERIOD COVERED: 5am July 1 - 5am July 2, 2008 (DOY 183/0900z-184/0900z) OBSERVATIONS SCHEDULED ACS/SBC 11158 HST Imaging of UV Emission in Quiescent Early-type Galaxies We have constructed a sample of early type galaxies at z~0.1 that have blue UV-optical colors, yet also show no signs of optical emission, or extended blue light. We have cross-correlated the SDSS catalog and the Galaxy Evolution Explorer Medi ...Continue Reading

HUBBLE SPACE TELESCOPE - Continuing to collect World Class Science DAILY REPORT    #4643 PERIOD COVERED: 5am June 30 - 5am July 1, 2008 (DOY 182/0900z-183/0900z) OBSERVATIONS SCHEDULED ACS/SBC 11158 HST Imaging of UV Emission in Quiescent Early-type Galaxies We have constructed a sample of early type galaxies at z~0.1 that have blue UV-optical colors, yet also show no signs of optical emission, or extended blue light. We have cross-correlated the SDSS catalog and the Galaxy Evolution Explorer Med ...Continue Reading

HUBBLE SPACE TELESCOPE - Continuing to collect World Class Science DAILY REPORT      #4641 PERIOD COVERED: 5am June 26 - 5am June 27, 2008 (DOY 178/0900z-179/0900z) OBSERVATIONS SCHEDULED NIC1/NIC2/NIC3 8795 NICMOS Post-SAA Calibration - CR Persistence Part 6 A new procedure proposed to alleviate the CR-persistence problem of NICMOS. Dark frames will be obtained immediately upon exiting the SAA contour 23, and every time a NICMOS exposure is scheduled within 50 minutes of coming out of ...Continue Reading

HUBBLE SPACE TELESCOPE - Continuing to collect World Class Science DAILY REPORT      #4640 PERIOD COVERED: 5am June 25 - 5am June 26, 2008 (DOY 177/0900z-178/0900z) OBSERVATIONS SCHEDULED NIC1/NIC2/NIC3 8795 NICMOS Post-SAA Calibration - CR Persistence Part 6 A new procedure proposed to alleviate the CR-persistence problem of NICMOS. Dark frames will be obtained immediately upon exiting the SAA contour 23, and every time a NICMOS exposure is scheduled within 50 minutes of coming out of ...Continue Reading

HUBBLE SPACE TELESCOPE - Continuing to collect World Class Science DAILY REPORT      #4639 PERIOD COVERED: 5am June 24 - 5am June 25, 2008 (DOY 176/0900z-177/0900z) OBSERVATIONS SCHEDULED ACS/SBC 11110 Searching for Lyman Apha Emission from FUSE Lyman Continuum Candidates We have recently been granted time on FUSE to characterize the escape fraction of hydrogen Lyman continuum (Lyc) photons from a morphologically diverse set of star forming galaxies. The FUSE program is designed to pro ...Continue Reading

HUBBLE SPACE TELESCOPE - Continuing to collect World Class Science DAILY REPORT       #4638 PERIOD COVERED: 5am June 23 - 5am June 24, 2008 (DOY 175/0900z-176/0900z) OBSERVATIONS SCHEDULED ACS/SBC 11110 Searching for Lyman Apha Emission from FUSE Lyman Continuum Candidates We have recently been granted time on FUSE to characterize the escape fraction of hydrogen Lyman continuum (Lyc) photons from a morphologically diverse set of star forming galaxies. The FUSE program is designed ...Continue Reading

HUBBLE SPACE TELESCOPE - Continuing to collect World Class Science DAILY REPORT      #4637 PERIOD COVERED: 5am June 20 - 5am June 23, 2008 (DOY 172/0900z-175/0900z) OBSERVATIONS SCHEDULED NIC1/NIC2/NIC3 8795 NICMOS Post-SAA Calibration - CR Persistence Part 6 A new procedure proposed to alleviate the CR-persistence problem of NICMOS. Dark frames will be obtained immediately upon exiting the SAA contour 23, and every time a NICMOS exposure is scheduled within 50 minutes of coming out of ...Continue Reading