HUBBLE SPACE TELESCOPE - Continuing to collect World Class Science DAILY REPORT       #4728 PERIOD COVERED: 5am October 30 - 5am October 31, 2008 (DOY         304/0900z-305/0900z) 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-correla ...Continue Reading

HUBBLE SPACE TELESCOPE - Continuing to collect World Class Science DAILY REPORT       #4727 PERIOD COVERED: 5am October 29 - 5am October 30, 2008 (DOY         303/0900z-304/0900z) OBSERVATIONS SCHEDULED ACS/SBC 11322 BEA UV Contamination Monitor The observations consist of imaging and spectroscopy with ACS/SBC of the scaled OB association NGC 604 in M33 prior to SM4. Data will be obtained with the F122M, F150LP, F165LP filters and the PR130L prism. The obs ...Continue Reading

HUBBLE SPACE TELESCOPE - Continuing to collect World Class Science DAILY REPORT      #4726 PERIOD COVERED: 5am October 28 - 5am October 29, 2008 (DOY 302/0900z-303/0900z) OBSERVATIONS SCHEDULED FGS 11704 The Ages of Globular Clusters and the Population II Distance Scale Globular clusters are the oldest objects in the universe whose age can be accurately determined. The dominant error in globular cluster age determinations is the uncertain Population II distance scale. We propose to use FGS ...Continue Reading

HUBBLE SPACE TELESCOPE - Continuing to collect World Class Science DAILY REPORT      #4725 PERIOD COVERED: 5am October 27 - 5am October 28, 2008 (DOY         301/0900z-302/0900z) OBSERVATIONS SCHEDULED WFPC2 11103 A Snapshot Survey of The Most Massive Clusters of Galaxies We propose the continuation of our highly successful SNAPshot survey of a sample of 125 very X-ray luminous clusters in the redshift range 0.3-0.7. As demonstrated by the 25 snapshots obtai ...Continue Reading

HUBBLE SPACE TELESCOPE - Continuing to collect World Class Science DAILY REPORT      #4724 PERIOD COVERED: 5am October 24 - 5am October 27, 2008 (DOY        298/0900z-301/0900z) OBSERVATIONS SCHEDULED FGS 11901/11212 Filling the Period Gap for Massive Binaries The current census of binaries among the massive O-type stars is seriously incomplete for systems in the period range from years to millennia because the radial velocity variations are too small and the a ...Continue Reading

HUBBLE SPACE TELESCOPE - Continuing to collect World Class Science DAILY REPORT      #4723 PERIOD COVERED: 5am October 23 - 5am October 24, 2008 (DOY 297/0900z-298/0900z) OBSERVATIONS SCHEDULED FGS 11901 Filling the Period Gap for Massive Binaries The current census of binaries among the massive O-type stars is seriously incomplete for systems in the period range from years to millennia because the radial velocity variations are too small and the angular separations too close for easy ...Continue Reading

HUBBLE SPACE TELESCOPE - Continuing to collect World Class Science DAILY REPORT       #4722 PERIOD COVERED: 5am October 22 - 5am October 23, 2008 (DOY         296/0900z-297/0900z) OBSERVATIONS SCHEDULED FGS 11901 Filling the Period Gap for Massive Binaries The current census of binaries among the massive O-type stars is seriously incomplete for systems in the period range from years to millennia because the radial velocity variations are too small and ...Continue Reading

HUBBLE SPACE TELESCOPE - Continuing to collect World Class Science DAILY REPORT      #4720 PERIOD COVERED: 5am October 20 - 5am October 21, 2008 (DOY 294/0900z-295/0900z) OBSERVATIONS SCHEDULED FGS 11789 An Astrometric Calibration of Population II Distance Indicators In 2002 HST produced a highly precise parallax for RR Lyrae. That measurement resulted in an absolute magnitude, M(V)= 0.61+/-0.11, a useful result, judged by the over ten refereed citations each year since. It is, however ...Continue Reading

HUBBLE SPACE TELESCOPE - Continuing to collect World Class Science DAILY REPORT       #4719 PERIOD COVERED: 5am October 17 - 5am October 20, 2008 (DOY 291/0900z-294/0900z) OBSERVATIONS SCHEDULED FGS 11901 Filling the Period Gap for Massive Binaries The current census of binaries among the massive O-type stars is seriously incomplete for systems in the period range from years to millennia because the radial velocity variations are too small and the angular separations too close for ...Continue Reading

HUBBLE SPACE TELESCOPE - Continuing to collect World Class Science DAILY REPORT    #4718 PERIOD COVERED: 5am October 16 - 5am October 17, 2008 (DOY 290/0900z-291/0900z) OBSERVATIONS SCHEDULED FGS 11212 Filling the Period Gap for Massive Binaries The current census of binaries among the massive O-type stars is seriously incomplete for systems in the period range from years to millennia because the radial velocity variations are too small and the angular separations too close for easy detection. H ...Continue Reading