November 2nd 2006 PST
HUBBLE SPACE TELESCOPE - Continuing to collect World Class Science DAILY REPORT # 4231 PERIOD COVERED: UT October 31, 2006 (DOY 304) OBSERVATIONS SCHEDULED ACS/HRC 10556 Neutral Gas at Redshift z=0.5 Damped Lyman-alpha systems {DLAs} are used to track the bulk of the neutral hydrogen gas in the Universe. Prior to HST UV spectroscopy, they could only be studied from the ground at redshifts z>1.65. However, HST has now permitted us to discover 41 DLAs at z 1. Our program exploits both of these unique cap ...Continue Reading
November 1st 2006 PST
HUBBLE SPACE TELESCOPE - Continuing to collect World Class Science DAILY REPORT # 4230 PERIOD COVERED: UT October 30, 2006 (DOY 303) OBSERVATIONS SCHEDULED ACS/HRC 10738 Earth Flats Sky flats will be obtained by observing the bright Earth with the HRC and WFC. These observations will be used to verify the accuracy of the flats currently in the pipeline and to monitor any changes. Weekly coronagraphic monitoring is required to assess the changing position of the spots. ACS/HRC 10833 Host Galaxies of Reverb ...Continue Reading
October 30th 2006 PST
HUBBLE SPACE TELESCOPE - Continuing to collect World Class Science DAILY REPORT # 4229 PERIOD COVERED: UT October 27,28,29, 2006 (DOY 300.301,302) OBSERVATIONS SCHEDULED NIC1/NIC2/NIC3 8794 NICMOS Post-SAA calibration - CR Persistence Part 5 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 the SAA. The darks w ...Continue Reading
October 28th 2006 PST
HUBBLE SPACE TELESCOPE - Continuing to collect World Class Science DAILY REPORT # 4228 PERIOD COVERED: UT October 26, 2006 (DOY 299) OBSERVATIONS SCHEDULED ACS/WFC 10551 Gamma-Ray Bursts from Start to Finish: A Legacy Approach The progenitors of long-duration GRBs are now known to be massive stars. This result lends credence to the collapsar model, where a rotating massive star ends its life leaving a black hole or a highly magnetized neutron star, and confirms its essential aspects. The focus of attention ...Continue Reading
October 27th 2006 PST
HUBBLE SPACE TELESCOPE - Continuing to collect World Class Science DAILY REPORT # 4226 PERIOD COVERED: UT October 24, 2006 (DOY 297) OBSERVATIONS SCHEDULED ACS/HRC 10851 Solving the Riddle of the Red Rectangle: Proper Motion Study of a Bipolar Nebula around a Binary We propose to use ACS to obtain second-epoch, high spatial-resolution images of the nearest Pre-Planetary nebula, the Red Rectangle {RR}. The RR is a Rosetta Stone for testing our understanding of binarity in the evolution of AGB stars to bipol ...Continue Reading
October 25th 2006 PST
HUBBLE SPACE TELESCOPE - Continuing to collect World Class Science DAILY REPORT # 4225 PERIOD COVERED: UT October 23, 2006 (DOY 296) OBSERVATIONS SCHEDULED ACS/HRC 10556 Neutral Gas at Redshift z=0.5 Damped Lyman-alpha systems {DLAs} are used to track the bulk of the neutral hydrogen gas in the Universe. Prior to HST UV spectroscopy, they could only be studied from the ground at redshifts z>1.65. However, HST has now permitted us to discover 41 DLAs at z6.5 in the Hubble Ultra Deep Field We propose to o ...Continue Reading
October 23rd 2006 PST
HUBBLE SPACE TELESCOPE - Continuing to collect World Class Science DAILY REPORT # 4224 PERIOD COVERED: UT October 20,21,22, 2006 (DOY 293,294,295) OBSERVATIONS SCHEDULED NIC1/NIC2/NIC3 8793 NICMOS Post-SAA calibration - CR Persistence Part 4 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 the SAA. The darks will be obtained in ...Continue Reading
October 21st 2006 PST
HUBBLE SPACE TELESCOPE - Continuing to collect World Class Science DAILY REPORT # 4223 PERIOD COVERED: UT October 19, 2006 (DOY 292) OBSERVATIONS SCHEDULED ACS/WFC 10816 The Formation History of Andromeda's Extended Metal-Poor Halo We propose deep ACS imaging in the outer spheroid of the Andromeda galaxy, in order to measure the star formation history of its true halo. For the past 20 years, nearly all studies of the Andromeda "halo" were focused on the spheroid within 30 ...Continue Reading
October 21st 2006 PST
HUBBLE SPACE TELESCOPE - Continuing to collect World Class Science DAILY REPORT # 4222 PERIOD COVERED: UT October 18, 2006 (DOY 291) OBSERVATIONS SCHEDULED ACS/HRC 10867 SAINTS - Supernova 1987A INTensive Survey SAINTS is a program to observe SN 1987A, the brightest supernova in 383 years, as it morphs into the youngest supernova remnant at age 19. HST is a unique tool for spatially-resolved observations of the many physical components of SN 1987A. A violent encounter is now underway between the fastest-mo ...Continue Reading
October 19th 2006 PST
HUBBLE SPACE TELESCOPE - Continuing to collect World Class Science DAILY REPORT # 4221 PERIOD COVERED: UT October 17, 2006 (DOY 290) OBSERVATIONS SCHEDULED ACS/WFC 10595 A Reference Database for Accurate Ages and Metallicities of Globular Clusters in the Magellanic Clouds We propose to finalize the compilation of a comprehensive database of high-quality ages and metallicities of Simple Stellar Populations {SSPs} in the Milky Way and the Magellanic Clouds. We will acquire new ACS imagery for 8 young and int ...Continue Reading
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