HUBBLE SPACE TELESCOPE - Continuing to collect World Class Science DAILY REPORT      # 4519 PERIOD COVERED: UT January 03, 2008 (DOY 003) OBSERVATIONS SCHEDULED ACS/SBC 11145 Probing the Planet Forming Region of T Tauri Stars in Chamaeleon By studying the inner, planet-forming regions of circumstellar disks around low-mass pre- main sequence stars we can refine theories of giant planet formation and develop timescales for the evolution of disks and their planets. Spitzer infrared observ ...Continue Reading

HUBBLE SPACE TELESCOPE - Continuing to collect World Class Science DAILY REPORT      # 4518 PERIOD COVERED: UT January 02, 2008 (DOY 002) OBSERVATIONS SCHEDULED ACS/SBC 11145 Probing the Planet Forming Region of T Tauri Stars in Chamaeleon By studying the inner, planet-forming regions of circumstellar disks around low-mass pre- main sequence stars we can refine theories of giant planet formation and develop timescales for the evolution of disks and their planets. Spitzer infrared observ ...Continue Reading

HUBBLE SPACE TELESCOPE - Continuing to collect World Class Science DAILY REPORT       # 4517 PERIOD COVERED: UT Dec 31 - Jan 01, 2007 (DOY 365) - 2008 (DOY 001) OBSERVATIONS SCHEDULED ACS/SBC 11145 Probing the Planet Forming Region of T Tauri Stars in Chamaeleon By studying the inner, planet-forming regions of circumstellar disks around low-mass pre- main sequence stars we can refine theories of giant planet formation and develop timescales for the evolution of disks and their planets. ...Continue Reading

HUBBLE SPACE TELESCOPE - Continuing to collect World Class Science DAILY REPORT       # 4516 PERIOD COVERED: UT December 28,29,30, 2007 (DOY 362,363,364) 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 the SA ...Continue Reading

HUBBLE SPACE TELESCOPE - Continuing to collect World Class Science DAILY REPORT      # 4515 PERIOD COVERED: UT December 27, 2007 (DOY 361) OBSERVATIONS SCHEDULED NIC1/NIC2/NIC3 11330 NICMOS Cycle 16 Extended Dark This takes a series of Darks in parallel to other instruments. 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 con ...Continue Reading

HUBBLE SPACE TELESCOPE - Continuing to collect World Class Science DAILY REPORT       # 4514 PERIOD COVERED: UT December 26, 2007 (DOY 360) OBSERVATIONS SCHEDULED ACS/SBC 11145 Probing the Planet Forming Region of T Tauri Stars in Chamaeleon By studying the inner, planet-forming regions of circumstellar disks around low-mass pre- main sequence stars we can refine theories of giant planet formation and develop timescales for the evolution of disks and their planets. Spitzer infrared ...Continue Reading

HUBBLE SPACE TELESCOPE - Continuing to collect World Class Science DAILY REPORT      # 4513 PERIOD COVERED: UT December 21,22,23,24,25, 2007 (DOY 355,356,357,358,359) 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 o ...Continue Reading

Note, the next Daily Report won’t appear until 12/26 HUBBLE SPACE TELESCOPE - Continuing to collect World Class Science DAILY REPORT      # 4512 PERIOD COVERED: UT December 20, 2007 (DOY 354) OBSERVATIONS SCHEDULED ACS/SBC 11145 Probing the Planet Forming Region of T Tauri Stars in Chamaeleon By studying the inner, planet-forming regions of circumstellar disks around low-mass pre- main sequence stars we can refine theories of giant planet formation and develop timescales for the evolutio ...Continue Reading

HUBBLE SPACE TELESCOPE - Continuing to collect World Class Science DAILY REPORT       # 4511 PERIOD COVERED: UT December 19, 2007 (DOY 353) 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 d ...Continue Reading

HUBBLE SPACE TELESCOPE - Continuing to collect World Class Science DAILY REPORT      # 4510 PERIOD COVERED: UT December 18, 2007 (DOY 352) OBSERVATIONS SCHEDULED ACS/SBC 11199 A Hard Look at Stellar Disks at the Epoch of Planet Formation We propose to use HST/ACS/SBC and Chandra/ACIS-S3 to observe the high energy fluxes of 4 stars surrounded by disks in the newly discovered aggregate 25 Ori, the most populous 10 Myr group known within 500 pc. Our observations will cover the 1-25A and 12 ...Continue Reading