HUBBLE SPACE TELESCOPE - Continuing to collect World Class Science DAILY REPORT      # 4502 PERIOD COVERED: UT December 7, 2007 (DOY 341) OBSERVATIONS SCHEDULED WFPC2 10787 Modes of Star Formation and Nuclear Activity in an Early Universe Laboratory Nearby compact galaxy groups are uniquely suited to exploring the mechanisms of star formation amid repeated and ongoing gravitational encounters, conditions similar to those of the high redshift universe. These dense groups host a variety ...Continue Reading

HUBBLE SPACE TELESCOPE - Continuing to collect World Class Science DAILY REPORT      # 4501 PERIOD COVERED: UT December 6, 2007 (DOY 340) OBSERVATIONS SCHEDULED FGS 11211 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, unsatisfactory to have the dire ...Continue Reading

HUBBLE SPACE TELESCOPE - Continuing to collect World Class Science DAILY REPORT      # 4500 PERIOD COVERED: UT December 5, 2007 (DOY 339) OBSERVATIONS SCHEDULED ACS/SBC 10907 New Sightlines for the Study of Intergalactic Helium: A Dozen High-Confidence, UV-Bright Quasars from SDSS/GALEX The reionization of intergalactic helium is thought to have occurred between redshifts of about 3 and 4. Detailed study of HeII Lyman-alpha absorption toward a handful quasars at 2.7<z<3.3 demonst ...Continue Reading

HUBBLE SPACE TELESCOPE - Continuing to collect World Class Science DAILY REPORT      # 4499 PERIOD COVERED: UT December 4, 2007 (DOY 338) OBSERVATIONS SCHEDULED ACS/SBC 10907 New Sightlines for the Study of Intergalactic Helium: A Dozen High-Confidence, UV-Bright Quasars from SDSS/GALEX The reionization of intergalactic helium is thought to have occurred between redshifts of about 3 and 4. Detailed study of HeII Lyman-alpha absorption toward a handful quasars at 2.7<z<3.3 demonst ...Continue Reading

HUBBLE SPACE TELESCOPE - Continuing to collect World Class Science   DAILY REPORT      # 4498   PERIOD COVERED: UT November 30 December 1, 2, 2007 (DOY 334,335,336)   OBSERVATIONS SCHEDULED   NIC1/NIC2/NIC3 8794   NICMOS Post-SAA calibration - CR Persistence Part 5 A new procedure proposed to alleviate the CR-persistence problem ofNICMOS. Dark frames will be obtained immediately upon exiting the SAAcontour 23, and every time a NICMOS exposure is scheduled wit ...Continue Reading

Cooper, Joe would like to recall the message, "Daily Report #4498 Correction Notice". ...Continue Reading

Notice: Due to the conversion of some ACS WFC or HRC observations intoWFPC2, or NICMOS observations after the loss of ACS CCD sciencecapability in January, there may be an occasional discrepancy between aproposal's listed (and correct) instrument usage and the abstract thatfollows it.   HUBBLE SPACE TELESCOPE - Continuing to collect World Class Science   DAILY REPORT      # 4498   PERIOD COVERED: UT November 30 December 1, 2, 2007 (DOY 334,335,336)   OBSERVATIONS S ...Continue Reading

Notice: Due to the conversion of some ACS WFC or HRC observations into WFPC2, or NICMOS observations after the loss of ACS CCD science capability in January, there may be an occasional discrepancy between a proposal's listed (and correct) instrument usage and the abstract that follows it. HUBBLE SPACE TELESCOPE - Continuing to collect World Class Science DAILY REPORT      # 4498 PERIOD COVERED: UT November 30 December 1, 2, 2007 (DOY 334,335,336) OBSERVATIONS SCHEDULED NIC1/NIC2/NIC3 8 ...Continue Reading

Notice: Due to the conversion of some ACS WFC or HRC observations into WFPC2, or NICMOS observations after the loss of ACS CCD science capability in January, there may be an occasional discrepancy between a proposal's listed (and correct) instrument usage and the abstract that follows it. HUBBLE SPACE TELESCOPE - Continuing to collect World Class Science DAILY REPORT       # 4497 PERIOD COVERED: UT November 29 , 2007 (DOY 333) OBSERVATIONS SCHEDULED ACS/SBC 10907 New Sightlines f ...Continue Reading

Notice: Due to the conversion of some ACS WFC or HRC observations into WFPC2, or NICMOS observations after the loss of ACS CCD science capability in January, there may be an occasional discrepancy between a proposal's listed (and correct) instrument usage and the abstract that follows it. HUBBLE SPACE TELESCOPE - Continuing to collect World Class Science DAILY REPORT      # 4496 PERIOD COVERED: UT November 28, 2007 (DOY 332) OBSERVATIONS SCHEDULED NIC1/NIC2/NIC3 8794 NICMOS Post-SAA c ...Continue Reading