10716( 4) - 08/26/05 09:32 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 10716 Version: 4 Check-in Time: 26-Aug-2005 13:32:13 Title The Unique Cluster Lens SDSS1004+4112 ------------------------------------------------------------------------------------ Type Cycle Parallel Pointing Tolerance GO 14 ------------------------------------------------------------------------------------ Investigators Contact? PI: Dr. C. S. Kochanek The Ohio State University Research Foundation CoI: Dr. Nicholas D. Morgan Yale University N CoI: Dr. Xinyu Dai The Ohio State University Research N Foundation CoI: Dr. Thomas J. Broadhurst Tel Aviv University - Wise Observatory N CoI: Dr. Masamuni Oguri Princeton University N ------------------------------------------------------------------------------------ Abstract SDSS1004+4112 is a unique example of a cluster lens because of its relatively high lens redshift (zlens=0.68), the existence of multiply imaged quasars for which time delays are measured, the presence of a significant number of multiply imaged background galaxies, and a quasar host galaxy that is so magnified that it can be observed in the mid?IR. By combining a deep 4?channel IRAC image with a NICMOS mosaic of the central, multiply?imaged region of the cluster, we will study the quasar host galaxy, search for low?mass substructure in the cluster, obtain accurate photometric redshifts for lensed arcs, discover very red lensed arcs and develop an accurate mass model for the cluster. Then we will combine all the data to obtain a competitive constraint on the cosmological model. ------------------------------------------------------------------------------------ 10716( 4) - 08/26/05 09:32 - [ 2] Observations Description ------------------------ The objective is to make a roughly 2 by 2 NICMOS H-band mosaic (NIC2/F160W) of the central regions of this lens cluster to support the much lower resolution observations that will be obtained with spitzer. 4 subdithers for each position to provide hot-pixel, cr, coronograph spot etc removal. Real Time Justification ----------------------- Calibration Justification ------------------------- Additional Comments ------------------- ------------------------------------------------------------------------------------ 10716( 4) - 08/26/05 09:32 - [ 3] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 SDSSJ1004+41 CLUSTER OF GALAXIES, RA=10H04M34.2100S +/- 0.1", J2000 V = 18.5 12 EINSTEIN RING, DEC=+41D12'44.10" +/- 0.1", GRAVITATIONAL LENS, PLATE-ID=00XW HIGH REDSHIFT CLUSTER Coordinate Source: HST_IMAGE Comments: Objective is to generate a roughly 2 by 2 NIC2/F160W mosaic of the central region of this cluster lens 10716( 4) - 08/26/05 09:32 - [ 4] Patterns ------------------------------------------------------------------------------------------------------------------------------------ Pattern_Number: 1 Primary_Pattern Secondary_Pattern Pattern_Type NIC-SQUARE-WAVE-DITH NIC-SPIRAL-DITH Pattern_Purpose MOSAIC DITHER Number_Of_Points 4 6 Point_Spacing 18.0 1.125 Line_Spacing 18.0 Coordinate_Frame POS-TARG POS-TARG Pattern_Orient 0.0 0.0 Angle_Between_Sides 270 Center_Pattern YES NO ------------------------------------------------------------------------------------------------------------------------------------ 10716( 4) - 08/26/05 09:32 - [ 5] Visit: 01 Visit Priority: Visit Requirements: On Hold Comments: Additional Comments: Visit will do a 2 x 2 mosaic as a square dither pattern spaced by 18 arcsec, centered on the cD galaxy of the cluster, with one position per orbit. At each position it will do a 2 x 2 square dither pattern with a throw of 20.5 pixels (1.56 arcsec) for CR/hot-pixel/coronograph spot control/removal. Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 SDSSJ1004+4 NIC2 MULTIAC NIC2 F160W NSAMP=15,SAMP-SEQ=STEP64 1 DEF PATTERN 1 1 112 CUM ------------------------------------------------------------------------------------------------------------------------------------ Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ SDSSJ1004+4112 1 NIC2 MULTIAC NIC2 F160W 1 1 none none 1 N/A CUM SDSSJ1004+4112 1 NIC2 MULTIAC NIC2 F160W 1 2 none none 1 N/A CUM SDSSJ1004+4112 1 NIC2 MULTIAC NIC2 F160W 1 3 none none 1 N/A CUM SDSSJ1004+4112 1 NIC2 MULTIAC NIC2 F160W 1 4 none none 1 N/A CUM SDSSJ1004+4112 1 NIC2 MULTIAC NIC2 F160W 1 5 none none 1 N/A CUM SDSSJ1004+4112 1 NIC2 MULTIAC NIC2 F160W 1 6 none none 1 N/A CUM SDSSJ1004+4112 1 NIC2 MULTIAC NIC2 F160W 2 1 none none 2 N/A CUM SDSSJ1004+4112 1 NIC2 MULTIAC NIC2 F160W 2 2 none none 2 N/A CUM SDSSJ1004+4112 1 NIC2 MULTIAC NIC2 F160W 2 3 none none 2 N/A CUM SDSSJ1004+4112 1 NIC2 MULTIAC NIC2 F160W 2 4 none none 2 N/A CUM SDSSJ1004+4112 1 NIC2 MULTIAC NIC2 F160W 2 5 none none 2 N/A CUM SDSSJ1004+4112 1 NIC2 MULTIAC NIC2 F160W 2 6 none none 2 N/A CUM SDSSJ1004+4112 1 NIC2 MULTIAC NIC2 F160W 3 1 none none 3 N/A CUM SDSSJ1004+4112 1 NIC2 MULTIAC NIC2 F160W 3 2 none none 3 N/A CUM 10716( 4) - 08/26/05 09:32 - [ 6] Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ SDSSJ1004+4112 1 NIC2 MULTIAC NIC2 F160W 3 3 none none 3 N/A CUM SDSSJ1004+4112 1 NIC2 MULTIAC NIC2 F160W 3 4 none none 3 N/A CUM SDSSJ1004+4112 1 NIC2 MULTIAC NIC2 F160W 3 5 none none 3 N/A CUM SDSSJ1004+4112 1 NIC2 MULTIAC NIC2 F160W 3 6 none none 3 N/A CUM SDSSJ1004+4112 1 NIC2 MULTIAC NIC2 F160W 4 1 none none 4 N/A CUM SDSSJ1004+4112 1 NIC2 MULTIAC NIC2 F160W 4 2 none none 4 N/A CUM SDSSJ1004+4112 1 NIC2 MULTIAC NIC2 F160W 4 3 none none 4 N/A CUM SDSSJ1004+4112 1 NIC2 MULTIAC NIC2 F160W 4 4 none none 4 N/A CUM SDSSJ1004+4112 1 NIC2 MULTIAC NIC2 F160W 4 5 none none 4 N/A CUM SDSSJ1004+4112 1 NIC2 MULTIAC NIC2 F160W 4 6 none none 4 N/A CUM 10716( 4) - 08/26/05 09:32 - [ 7] Summary Form for Proposal 10716 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures NIC2 ------------------------------------------------------------------------------------------------------------------------------------ Configurations NIC2 ------------------------------------------------------------------------------------------------------------------------------------ Opmodes MULTIACCUM ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters NSAMP=15 SAMP-SEQ=STEP64 ------------------------------------------------------------------------------------------------------------------------------------ Proposal Category GO ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements PATTERN 1 1 ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F160W ------------------------------------------------------------------------------------------------------------------------------------ Target Names SDSSJ1004+4112 ------------------------------------------------------------------------------------------------------------------------------------