HUBBLE SPACE TELESCOPE - Continuing to collect World Class Science DAILY REPORT      #4840 PERIOD COVERED: 5am April 23 - 5am April 24, 2009 (DOY         113/0900z-114/0900z) OBSERVATIONS SCHEDULED FGS 11788 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 ...Continue Reading

HUBBLE SPACE TELESCOPE - Continuing to collect World Class Science DAILY REPORT      #4839 PERIOD COVERED: 5am April 22 - 5am April 23, 2009 (DOY        112/0900z-113/0900z) OBSERVATIONS SCHEDULED WFPC2 11975 UV Light from Old Stellar Populations: a Census of UV Sources in Galactic Globular Clusters In spite of the fact that HST has been the only operative high-resolution eye in the UV-window over the last 18 years, no homogeneous UV survey of Galactic globular ...Continue Reading

HUBBLE SPACE TELESCOPE - Continuing to collect World Class Science DAILY REPORT      #4838 PERIOD COVERED: 5am April 21 - 5am April 22, 2009 (DOY 111/0900z-112/0900z) OBSERVATIONS SCHEDULED WFPC2 11974 High-resolution Imaging for 9 Very Bright, Spectroscopically Confirmed, Group-scale Lenses There are large samples of strong lenses that probe small (galaxy) scale masses (e.g., SLACS, SQLS, COSMOS). There are also large samples of strong lenses that probe large (rich cluster) scale masses (e ...Continue Reading

HUBBLE SPACE TELESCOPE - Continuing to collect World Class Science DAILY REPORT      #4837 PERIOD COVERED: 5am April 20 - 5am April 21, 2009 (DOY 110/0900z-111/0900z) OBSERVATIONS SCHEDULED ACS/SBC 11982 Spanning the Reionization History of IGM Helium: a Large and Efficient HST Spectral Survey of Far-UV-Bright Quasars The reionization of IGM helium is thought to have occurred at redshifts of z=3 to 4. Detailed studies of HeII Lyman-alpha absorption toward a handful of QSOs at 2.7<z<3. ...Continue Reading

HUBBLE SPACE TELESCOPE - Continuing to collect World Class Science DAILY REPORT       #4836 PERIOD COVERED: 5am April 17 - 5am April 20, 2009 (DOY 107/0900z-110/0900z) OBSERVATIONS SCHEDULED WFPC2 11987 The Recent Star Formation History of SINGS Galaxies The Spitzer Legacy project SINGS provided a unique view of the current state of star formation and dust in a sample of galaxies of all Hubble types. This multi-wavelength view allowed the team to create current star formation diagnosti ...Continue Reading

HUBBLE SPACE TELESCOPE - Continuing to collect World Class Science DAILY REPORT       #4834 PERIOD COVERED: 5am April 15 - 5am April 16, 2009 (DOY 105/0900z-106/0900z) OBSERVATIONS SCHEDULED ACS/SBC 11980 Deep FUV Imaging of Cooling Flow Clusters We propose to take deep ACS FUV images of a carefully selected sample of 19 bright central galaxies in nearby galaxy clusters. This program is the last critical element of a comprehensive investigation of the impact of stellar and AGN feedback ...Continue Reading

HUBBLE SPACE TELESCOPE - Continuing to collect World Class Science DAILY REPORT       #4833 PERIOD COVERED: 5am April 14 - 5am April 15, 2009 (DOY 104/0900z-105/0900z) OBSERVATIONS SCHEDULED WFPC2 11974 High-resolution Imaging for 9 Very Bright, Spectroscopically Confirmed, Group-scale Lenses There are large samples of strong lenses that probe small (galaxy) scale masses (e.g., SLACS, SQLS, COSMOS). There are also large samples of strong lenses that probe large (rich cluster) scale mas ...Continue Reading

HUBBLE SPACE TELESCOPE - Continuing to collect World Class Science DAILY REPORT       #4832 PERIOD COVERED: 5am April 13 - 5am April 14, 2009 (DOY 103/0900z-104/0900z) OBSERVATIONS SCHEDULED SIGNIFICANT EVENTS: (None) ACS/SBC 11982 Spanning the Reionization History of IGM Helium: a Large and Efficient HST Spectral Survey of Far-UV-Bright Quasars The reionization of IGM helium is thought to have occurred at redshifts of z=3 to 4. Detailed studies of HeII Lyman-alpha absorption toward a ...Continue Reading

HUBBLE SPACE TELESCOPE - Continuing to collect World Class Science DAILY REPORT      #4831 PERIOD COVERED: 5am April 10 - 5am April 13, 2009 (DOY        100/0900z-103/0900z) OBSERVATIONS SCHEDULED WFPC2 11990 Determining the Physical Properties of Comet 103P/Hartley 2 in Support of NASA's EPOXI Mission We request 12 orbits of imaging to measure the size, shape, and rotation period of the nucleus of comet 103P/Hartley 2, the target of NASA's EPOXI mission. Knowle ...Continue Reading

HUBBLE SPACE TELESCOPE - Continuing to collect World Class Science DAILY REPORT      #4830 PERIOD COVERED: 5am April 9 - 5am April 10, 2009 (DOY 099/0900z-100/0900z) OBSERVATIONS SCHEDULED ACS/SBC 11980 Deep FUV Imaging of Cooling Flow Clusters We propose to take deep ACS FUV images of a carefully selected sample of 19 bright central galaxies in nearby galaxy clusters. This program is the last critical element of a comprehensive investigation of the impact of stellar and AGN feedback on the ...Continue Reading