6626( 3) - 04/11/97 11:36 - [ 1] PROPOSAL FOR HUBBLE SPACE TELESCOPE OBSERVATIONS ST ScI Use Only ID: 6626 Version: 3 Check-in Date: 09-Feb-1996 10:41:22 1.Proposal Title: Imaging of z > 1\\ Massive Star Forming Galaxies ------------------------------------------------------------------------------------ 2. Scientific Category 3. Proposal For 4. Cycle COSMOLOGY GO 6 ------------------------------------------------------------------------------------ 5. Investigators Contact? PI: Lennox L. Cowie Institute for Astronomy CoI: Antoinette Cowie Institute for Astronomy, University of N Hawaii CoI: Esther M. Hu Institute for Astronomy, University of N Hawaii ------------------------------------------------------------------------------------ 6. Abstract We propose to obtain WFPC2 images in the F814W and F450W filters to study the morphologies and internal colors (rest- frame UV) of a moderately large sample of 36 galaxies with z > 1\ and L(ionO2 3727 Angstrom) > 10^42 ergs\ s^-1\ identified with the LRIS spectrograph on the Keck 10 m, in two 7'* 2'\ strips covering the Hawaii Deep Fields SSA13 and SSA22. (The high ionO2 luminosity implies that these galaxies are undergoing intense star formation with \dot M ~ 100 Msun\ yr^-1.) The central regions of the strips have already been imaged with HST and to cover the sample we require two further pointings for each of the two fields. The total time requested is 48 orbits. ------------------------------------------------------------------------------------ 6626( 3) - 04/11/97 11:36 - [ 2] Observations Description ------------------------ For a `typical' I = 23\\ galaxy, the central surface brightness in a wide-field pixel is 27, and the measured typical value at 1^ \\ is approximately I = 29\\ in a WFC pixel. The latter value produces a count rate of 1.0 * 10^-2 e^- /sec/pixel\\ through the F814W filter. By comparison the sky background at the field ecliptic latitudes is I = 27.2\\ per WFC pixel giving 4 * 10^-2 e^- /sec/pixel. Assuming 1800s sub-exposures to provide clean cosmic ray rejection and sky cleaning, and 5e^-/pixel read noise, the sky-dominated noise/exposure/pixel becomes 11e^-\\ and the S/N = 1.3 in 0.5 hrs. Requiring a S/N = 4/pixel then implies roughly a six- orbit exposure. A similar exposure is required in the B images to study the internal colors. Experience with HST deep data is consistent with these estimates. The data analysis will be carried out on an existing Sparc 10 workstation belonging to the P.I. Existing IDL programs will be used to process the frames using median sky generation and cosmic ray rejection routines. Image enhancement will be performed on subsampled data using the Lucy-Richardson algorithm and these images used for final taxonomic classification and color analysis. Real Time Justification ----------------------- None. None. Calibration Justification ------------------------- Additional Comments ------------------- ------------------------------------------------------------------------------------ Data Distribution Media: 8MM Blocking Factor: 10 Ship To: PI_Address Ship Via: UPS Email: ------------------------------------------------------------------------------------ 6626( 3) - 04/11/97 11:36 - [ 3] TARGET LIST a) Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 SSA22E UNIDENTIFIED, BLANK RA=22H 15M 07.0S +/- 0.1S, 1950 Z=0.0 V = 20 FIELD DEC=00D 00' 05.8" +/-0.1" B-V = 0.4 Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) B1950 0.0 0.0 0.0 2 SSA22W UNIDENTIFIED, BLANK RA=22H 14M 55.0S +/- 0.1S, 1950 Z=0.0 V = 20 FIELD DEC=00D 00' 05.8" +/-0.1" B-V = 0.4 Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) B1950 0.0 0.0 0.0 3 SSA13E UNIDENTIFIED, BLANK RA=13H 10M 11.0S +/- 0.1S, 1950 Z=0.0 V = 20 FIELD DEC=43D 00' 31.6" +/-0.1" B-V = 0.4 Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) B1950 0.0 0.0 0.0 4 SSA13W UNIDENTIFIED, BLANK RA=13H 09M 51.0S +/- 0.1S, 1950 Z=0.0 V = 20 FIELD DEC=43D 00' 31.6" +/-0.1" B-V = 0.4 Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) B1950 0.0 0.0 0.0 6626( 3) - 04/11/97 11:36 - [ 4] Visit: 01 Visit Requirements: On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 SSA22E WFPC2 IMAGE WFALL-F F814W CR-SPLIT=NO 1 2300 S POS TARG 0,0;LOW-SKY IX ------------------------------------------------------------------------------------------------------------------------------------ 2 SSA22E WFPC2 IMAGE WFALL-F F814W CR-SPLIT=NO 1 2500 S POS TARG 0,5;LOW-SKY IX ------------------------------------------------------------------------------------------------------------------------------------ 3 SSA22E WFPC2 IMAGE WFALL-F F814W CR-SPLIT=NO 1 2500 S POS TARG 5,0;LOW-SKY IX ------------------------------------------------------------------------------------------------------------------------------------ 4 SSA22E WFPC2 IMAGE WFALL-F F814W CR-SPLIT=NO 1 2500 S POS TARG 0,-5;LOW-SKY IX ------------------------------------------------------------------------------------------------------------------------------------ 5 SSA22E WFPC2 IMAGE WFALL-F F814W CR-SPLIT=NO 1 2500 S POS TARG -5,0;LOW-SKY IX ------------------------------------------------------------------------------------------------------------------------------------ 6 SSA22E WFPC2 IMAGE WFALL-F F814W CR-SPLIT=NO 1 2500 S POS TARG -5,-5;LOW-SKY IX ------------------------------------------------------------------------------------------------------------------------------------ 6626( 3) - 04/11/97 11:36 - [ 5] Visit: 02 Visit Requirements: On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 SSA22W WFPC2 IMAGE WFALL-F F814W CR-SPLIT=NO 1 2300 S POS TARG 0,0;LOW-SKY IX ------------------------------------------------------------------------------------------------------------------------------------ 2 SSA22W WFPC2 IMAGE WFALL-F F814W CR-SPLIT=NO 1 2500 S POS TARG 0,5;LOW-SKY IX ------------------------------------------------------------------------------------------------------------------------------------ 3 SSA22W WFPC2 IMAGE WFALL-F F814W CR-SPLIT=NO 1 2500 S POS TARG 5,0;LOW-SKY IX ------------------------------------------------------------------------------------------------------------------------------------ 4 SSA22W WFPC2 IMAGE WFALL-F F814W CR-SPLIT=NO 1 2500 S POS TARG 0,-5;LOW-SKY IX ------------------------------------------------------------------------------------------------------------------------------------ 5 SSA22W WFPC2 IMAGE WFALL-F F814W CR-SPLIT=NO 1 2500 S POS TARG -5,0;LOW-SKY IX ------------------------------------------------------------------------------------------------------------------------------------ 6 SSA22W WFPC2 IMAGE WFALL-F F814W CR-SPLIT=NO 1 2500 S POS TARG -5,-5;LOW-SKY IX ------------------------------------------------------------------------------------------------------------------------------------ 6626( 3) - 04/11/97 11:36 - [ 6] Visit: 03 Visit Requirements: On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 SSA13E WFPC2 IMAGE WFALL-F F814W CR-SPLIT=NO 1 2300 S POS TARG 0,0;LOW-SKY IX ------------------------------------------------------------------------------------------------------------------------------------ 2 SSA13E WFPC2 IMAGE WFALL-F F814W CR-SPLIT=NO 1 2600 S POS TARG 0,5;LOW-SKY IX ------------------------------------------------------------------------------------------------------------------------------------ 3 SSA13E WFPC2 IMAGE WFALL-F F814W CR-SPLIT=NO 1 2600 S POS TARG 5,0;LOW-SKY IX ------------------------------------------------------------------------------------------------------------------------------------ 4 SSA13E WFPC2 IMAGE WFALL-F F814W CR-SPLIT=NO 1 2600 S POS TARG 0,-5;LOW-SKY IX ------------------------------------------------------------------------------------------------------------------------------------ 5 SSA13E WFPC2 IMAGE WFALL-F F814W CR-SPLIT=NO 1 2600 S POS TARG -5,0;LOW-SKY IX ------------------------------------------------------------------------------------------------------------------------------------ 6 SSA13E WFPC2 IMAGE WFALL-F F814W CR-SPLIT=NO 1 2600 S POS TARG -5,-5;LOW-SKY IX ------------------------------------------------------------------------------------------------------------------------------------ 6626( 3) - 04/11/97 11:36 - [ 7] Visit: 04 Visit Requirements: On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 SSA13W WFPC2 IMAGE WFALL-F F814W CR-SPLIT=NO 1 2300 S POS TARG 0,0;LOW-SKY IX ------------------------------------------------------------------------------------------------------------------------------------ 2 SSA13W WFPC2 IMAGE WFALL-F F814W CR-SPLIT=NO 1 2600 S POS TARG 0,5;LOW-SKY IX ------------------------------------------------------------------------------------------------------------------------------------ 3 SSA13W WFPC2 IMAGE WFALL-F F814W CR-SPLIT=NO 1 2600 S POS TARG 5,0;LOW-SKY IX ------------------------------------------------------------------------------------------------------------------------------------ 4 SSA13W WFPC2 IMAGE WFALL-F F814W CR-SPLIT=NO 1 2600 S POS TARG 0,-5;LOW-SKY IX ------------------------------------------------------------------------------------------------------------------------------------ 5 SSA13W WFPC2 IMAGE WFALL-F F814W CR-SPLIT=NO 1 2600 S POS TARG -5,0;LOW-SKY IX ------------------------------------------------------------------------------------------------------------------------------------ 6 SSA13W WFPC2 IMAGE WFALL-F F814W CR-SPLIT=NO 1 2600 S POS TARG -5,-5;LOW-SKY IX ------------------------------------------------------------------------------------------------------------------------------------ 6626( 3) - 04/11/97 11:36 - [ 8] Summary Form for Proposal 6626 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Configurations WFPC2 ------------------------------------------------------------------------------------------------------------------------------------ Opmodes IMAGE ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters CR-SPLIT=NO ------------------------------------------------------------------------------------------------------------------------------------ Proposal Category GO ------------------------------------------------------------------------------------------------------------------------------------ Scientific Category COSMOLOGY ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements POS TARG 0,0;LOW-SKY POS TARG 0,5;LOW-SKY POS TARG 5,0;LOW-SKY POS TARG 0,-5;LOW-SKY POS TARG -5,0;LOW-SKY POS TARG -5,-5;LOW-SKY ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F814W ------------------------------------------------------------------------------------------------------------------------------------ Target Names SSA22E SSA22W SSA13E SSA13W ------------------------------------------------------------------------------------------------------------------------------------