July 19th 2008 PDT
HUBBLE SPACE TELESCOPE - Continuing to collect World Class Science DAILY REPORT #4655 PERIOD COVERED: 5am July 17 - 5am July 18, 2008 (DOY 199/0900z-200/0900z) 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 potential problems: t ...Continue Reading
July 18th 2008 PDT
HUBBLE SPACE TELESCOPE - Continuing to collect World Class Science DAILY REPORT #4654 PERIOD COVERED: 5am July 16 - 5am July 17, 2008 (DOY 198/0900z-199/0900z) 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 ...Continue Reading
July 17th 2008 PDT
HUBBLE SPACE TELESCOPE - Continuing to collect World Class Science DAILY REPORT #4653 PERIOD COVERED: 5am July 15 - 5am July 16, 2008 (DOY 197/0900z-198/0900z) 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
July 16th 2008 PDT
HUBBLE SPACE TELESCOPE - Continuing to collect World Class Science DAILY REPORT #4652 PERIOD COVERED: 5am July 14 - 5am July 15, 2008 (DOY 196/0900z-197/0900z) 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 ...Continue Reading
July 15th 2008 PDT
HUBBLE SPACE TELESCOPE - Continuing to collect World Class Science DAILY REPORT #4651 PERIOD COVERED: 5am July 11 - 5am July 14, 2008 (DOY193/0900z-196/0900z) 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
July 12th 2008 PDT
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
July 9th 2008 PDT
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
July 4th 2008 PDT
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
July 3rd 2008 PDT
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
July 2nd 2008 PDT
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
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