5989( 4) - 01/02/96 15:13 - [ 1] PROPOSAL FOR HUBBLE SPACE TELESCOPE OBSERVATIONS ST ScI Use Only ID: 5989 Version: 4 Check-in Date: 02-Jan-1996 15:04:52 1.Proposal Title: Imaging of CL1358+62 and its Environs: The Morphology-Density relation at z = 0.33 ------------------------------------------------------------------------------------ 2. Scientific Category 3. Proposal For 4. Cycle Galaxies & Clusters GO 5 ------------------------------------------------------------------------------------ 5. Investigators Contact? PI: Marijn Franx Kapteyn Astronomical Institute CoI: Daniel Fabricant Smithsonian Astrophysical Observatory N CoI: Garth Illingworth Lick Observatory,University of California, Y Santa Cruz ------------------------------------------------------------------------------------ 6. Abstract The galaxy morphology-density relation provides an important constraint on galaxy formation and evolution. The physical processes responsible for defining galaxy types in a given environment, and for their subsequent evolution, remain unclear. To clarify the nature of these processes, we propose an imaging survey of the rich, X- ray selected cluster CL1358+62 at z=0.33. This is one of the best studied clusters at intermediate redshift; we have obtained more than 200 spectra of galaxies in CL1358+62 over an area of 10'*10'. With HST images we can derive the morphologies and bulge-to-disk ratios of the member galaxies as a function of radius in the cluster. With these images and our extensive database of spectra we will be able to relate the star formation history and morphology of cluster members over a range of galaxy densities. This will be the first detailed study of distant galaxies in regions intermediate between the high density cluster centers and the low density field. This cluster is also the subject of a Keck telescope spectroscopic study of the internal kinematical properties of the early-type galaxies. A key component of this part of the project is the development of the Fundamental Plane relations for CL1358+62. HST data are essential for this. Since this cluster lies in the Continuous Viewing Zone, a very high observational efficiency (88%) can be achieved. ------------------------------------------------------------------------------------ 5989( 4) - 01/02/96 15:13 - [ 2] Observations Description ------------------------ Since CL1358+62 lies in the Continuous Viewing Zone, this means that the observations can be done with extremely high efficiency -- nominally 88% The required high S/N data can be obtained in less then two orbits. We propose to image 12 fields, which gives us a coverage of about 6x6 arcmin. We image in two filters, F606W and F814W. We take a series of exposures of about 3800 sec total in each passband, each of these are divided into 3. This will allow for cosmic ray cleaning, and proper subtraction of the background sky(which can be elevated due to earth shine). We have developed extensive experience with deriving quantitative parameters such as bulge-to-disk ratios, length scales from exponential and r^1/4-law fits, and color maps. This experience has been developed through analyses of HST WFPC 1 and WFPC 2 images on distant field galaxies as part of the MDS (Medium Deep Survey -- Illingworth was a Co-I during Cycles 1-4). These results can be seen in a number of papers (Phillips Etal \\ 1994a, Forbes Etal \\ 1994, and Phillips Etal \\ 1994b). Real Time Justification ----------------------- The best CVZ time will occur in Februari 1996. We have added an additional timing constraint ("BETWEEN"), to get the optimal part of CVZ in Februari 1996 (that is the last part of that CVZ). If the program is impossible to schedule in that part, the constraint can be omitted, and ALL days within that CVZ can be used. Please contact the PI if this is done. The position angle is determined by the fact the CVZ in Februari is chosen. We want to make a mosaic of slightly overlapping images. Therefore, once we have chosen a position angle for the observations, the pointing positions are fixed, and vice-versa. We have choosen a position angle of 270 degrees for the U3 axis. This gives a relatively simple raster of points on the sky. Send email to franx@astro.rug.nl if it is necessary to change the extra timing constraint. Calibration Justification ------------------------- Additional Comments ------------------- ------------------------------------------------------------------------------------ Data Distribution Media: 8MM Blocking Factor: 10 Ship To: Marijn Franx*Kapteyn Astronomical Institute*Zernike Gebouw*Landleven 12*9747 AD Groningen*THE NETHERLANDS Ship Via: UPS Email: franx@astro.rug.nl , ------------------------------------------------------------------------------------ 5989( 4) - 01/02/96 15:13 - [ 3] TARGET LIST a) Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 GAL-CLUS- CLUSTER OF GALAXIES, RA=14H 0M 5.017S +/- 0.01S, J2000 Z = 0.31 V = 19.00 135951+62310 RICH CLUSTER DEC=62D 31' 4.833" +/- 0.3" V = 21.00 5-POS1 V = 23.00 Comments: CLUSTER OF GALAXIES 2 GAL-CLUS- CLUSTER OF GALAXIES, RA=13H 59M 50.570S +/- 0.01S, J2000 Z = 0.31 V = 19.00 135951+62310 RICH CLUSTER DEC=62D 31' 4.880" +/- 0.3" V = 21.00 5-POS2 V = 23.00 Comments: CLUSTER OF GALAXIES 3 GAL-CLUS- CLUSTER OF GALAXIES, RA=13H 59M 36.123S +/- 0.01S, J2000 Z = 0.31 V = 19.00 135951+62310 RICH CLUSTER DEC=62D 31' 4.833" +/- 0.3" V = 21.00 5-POS3 V = 23.00 Comments: CLUSTER OF GALAXIES 4 GAL-CLUS- CLUSTER OF GALAXIES, RA=13H 59M 21.677S +/- 0.01S, J2000 Z = 0.31 V = 19.00 135951+62310 RICH CLUSTER DEC=62D 31' 4.694" +/- 0.3" V = 21.00 5-POS4 V = 23.00 Comments: CLUSTER OF GALAXIES 5 GAL-CLUS- CLUSTER OF GALAXIES, RA=13H 59M 28.932S +/- 0.01S, J2000 Z = 0.31 V = 19.00 135951+62310 RICH CLUSTER DEC=62D 28' 28.775" +/- 0.3" V = 21.00 5-POS5 V = 23.00 Comments: CLUSTER OF GALAXIES 6 GAL-CLUS- CLUSTER OF GALAXIES, RA=13H 59M 43.357S +/- 0.01S, J2000 Z = 0.31 V = 19.00 135951+62310 RICH CLUSTER DEC=62D 28' 28.868" +/- 0.3" V = 21.00 5-POS6 V = 23.00 Comments: CLUSTER OF GALAXIES 7 GAL-CLUS- CLUSTER OF GALAXIES, RA=13H 59M 57.783S +/- 0.01S, J2000 Z = 0.31 V = 19.00 135951+62310 RICH CLUSTER DEC=62D 28' 28.868" +/- 0.3" V = 21.00 5-POS7 V = 23.00 Comments: CLUSTER OF GALAXIES 8 GAL-CLUS- CLUSTER OF GALAXIES, RA=14H 0M 12.208S +/- 0.01S, J2000 Z = 0.31 V = 19.00 135951+62310 RICH CLUSTER DEC=62D 28' 28.775" +/- 0.3" V = 21.00 5-POS8 V = 23.00 Comments: CLUSTER OF GALAXIES 9 GAL-CLUS- CLUSTER OF GALAXIES, RA=14H 0M 12.271S +/- 0.01S, J2000 Z = 0.31 V = 19.00 135951+62310 RICH CLUSTER DEC=62D 33' 40.775" +/- 0.3" V = 21.00 5-POS9 V = 23.00 Comments: CLUSTER OF GALAXIES 10 GAL-CLUS- CLUSTER OF GALAXIES, RA=13H 59M 57.804S +/- 0.01S, J2000 Z = 0.31 V = 19.00 135951+62310 RICH CLUSTER DEC=62D 33' 40.868" +/- 0.3" V = 21.00 5-POS10 V = 23.00 Comments: CLUSTER OF GALAXIES 11 GAL-CLUS- CLUSTER OF GALAXIES, RA=13H 59M 43.336S +/- 0.01S, J2000 Z = 0.31 V = 19.00 135951+62310 RICH CLUSTER DEC=62D 33' 40.868" +/- 0.3" V = 21.00 5-POS11 V = 23.00 Comments: CLUSTER OF GALAXIES 12 GAL-CLUS- CLUSTER OF GALAXIES, RA=13H 59M 28.869S +/- 0.01S, J2000 Z = 0.31 V = 19.00 135951+62310 RICH CLUSTER DEC=62D 33' 40.775" +/- 0.3" V = 21.00 5-POS12 V = 23.00 Comments: CLUSTER OF GALAXIES 5989( 4) - 01/02/96 15:13 - [ 4] Visit: 01 Visit Requirements: CVZ ORIENT 269.9D to 270.1D BETWEEN 14-FEB-96:00:00:00 AND 18-FEB- 96:00:00:00 On Hold Comments: Additional Comments: The "BETWEEN" constraint is used to select the best part of CVZ in Februari 1996 (the last part). This constraint can be deleted if necessary. The position angle is ESSENTIAL. Changes can be made only after contacting the PI (franx@astro.rug.nl). Please inform the PI of all changes made. Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 GAL-CLUS- WFPC2 IMAGE WFALL- F606W CR-SPLIT=0.0 3 1280S POS TARG 13, 13 135951+6231 FIX 05-POS1 ------------------------------------------------------------------------------------------------------------------------------------ 2 GAL-CLUS- WFPC2 IMAGE WFALL- F814W CR-SPLIT=0.0 3 1280S POS TARG 13, 13 135951+6231 FIX 05-POS1 ------------------------------------------------------------------------------------------------------------------------------------ 3 GAL-CLUS- WFPC2 IMAGE WFALL- F606W CR-SPLIT=0.0 3 1280S POS TARG 13, 13 135951+6231 FIX 05-POS2 ------------------------------------------------------------------------------------------------------------------------------------ 4 GAL-CLUS- WFPC2 IMAGE WFALL- F814W CR-SPLIT=0.0 3 1280S POS TARG 13, 13 135951+6231 FIX 05-POS2 ------------------------------------------------------------------------------------------------------------------------------------ 5989( 4) - 01/02/96 15:13 - [ 5] Visit: 02 Visit Requirements: CVZ ORIENT 269.9D to 270.1D BETWEEN 14-FEB-96:00:00:00 AND 18-FEB- 96:00:00:00 On Hold Comments: Additional Comments: The "BETWEEN" constraint is used to select the best part of CVZ in Februari 1996 (the last part). This constraint can be deleted if necessary. The position angle is ESSENTIAL. Changes can be made only after contacting the PI (franx@astro.rug.nl). Please inform the PI of all changes made. Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 5 GAL-CLUS- WFPC2 IMAGE WFALL- F606W CR-SPLIT=0.0 3 1280S POS TARG 13, 13 135951+6231 FIX 05-POS3 ------------------------------------------------------------------------------------------------------------------------------------ 6 GAL-CLUS- WFPC2 IMAGE WFALL- F814W CR-SPLIT=0.0 3 1280S POS TARG 13, 13 135951+6231 FIX 05-POS3 ------------------------------------------------------------------------------------------------------------------------------------ 7 GAL-CLUS- WFPC2 IMAGE WFALL- F606W CR-SPLIT=0.0 3 1280S POS TARG 13, 13 135951+6231 FIX 05-POS4 ------------------------------------------------------------------------------------------------------------------------------------ 8 GAL-CLUS- WFPC2 IMAGE WFALL- F814W CR-SPLIT=0.0 3 1280S POS TARG 13, 13 135951+6231 FIX 05-POS4 ------------------------------------------------------------------------------------------------------------------------------------ 5989( 4) - 01/02/96 15:13 - [ 6] Visit: 03 Visit Requirements: CVZ ORIENT 269.9D to 270.1D BETWEEN 14-FEB-96:00:00:00 AND 18-FEB- 96:00:00:00 On Hold Comments: Additional Comments: The "BETWEEN" constraint is used to select the best part of CVZ in Februari 1996 (the last part). This constraint can be deleted if necessary. The position angle is ESSENTIAL. Changes can be made only after contacting the PI (franx@astro.rug.nl). Please inform the PI of all changes made. Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 9 GAL-CLUS- WFPC2 IMAGE WFALL- F606W CR-SPLIT=0.0 3 1280S POS TARG 13, 13 135951+6231 FIX 05-POS5 ------------------------------------------------------------------------------------------------------------------------------------ 10 GAL-CLUS- WFPC2 IMAGE WFALL- F814W CR-SPLIT=0.0 3 1280S POS TARG 13, 13 135951+6231 FIX 05-POS5 ------------------------------------------------------------------------------------------------------------------------------------ 11 GAL-CLUS- WFPC2 IMAGE WFALL- F606W CR-SPLIT=0.0 3 1280S POS TARG 13, 13 135951+6231 FIX 05-POS6 ------------------------------------------------------------------------------------------------------------------------------------ 12 GAL-CLUS- WFPC2 IMAGE WFALL- F814W CR-SPLIT=0.0 3 1280S POS TARG 13, 13 135951+6231 FIX 05-POS6 ------------------------------------------------------------------------------------------------------------------------------------ 5989( 4) - 01/02/96 15:13 - [ 7] Visit: 04 Visit Requirements: CVZ ORIENT 269.9D to 270.1D BETWEEN 14-FEB-96:00:00:00 AND 18-FEB- 96:00:00:00 On Hold Comments: Additional Comments: The "BETWEEN" constraint is used to select the best part of CVZ in Februari 1996 (the last part). This constraint can be deleted if necessary. The position angle is ESSENTIAL. Changes can be made only after contacting the PI (franx@astro.rug.nl). Please inform the PI of all changes made. Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 13 GAL-CLUS- WFPC2 IMAGE WFALL- F606W CR-SPLIT=0.0 3 1280S POS TARG 13, 13 135951+6231 FIX 05-POS7 ------------------------------------------------------------------------------------------------------------------------------------ 14 GAL-CLUS- WFPC2 IMAGE WFALL- F814W CR-SPLIT=0.0 3 1280S POS TARG 13, 13 135951+6231 FIX 05-POS7 ------------------------------------------------------------------------------------------------------------------------------------ 15 GAL-CLUS- WFPC2 IMAGE WFALL- F606W CR-SPLIT=0.0 3 1280S POS TARG 13, 13 135951+6231 FIX 05-POS8 ------------------------------------------------------------------------------------------------------------------------------------ 16 GAL-CLUS- WFPC2 IMAGE WFALL- F814W CR-SPLIT=0.0 3 1280S POS TARG 13, 13 135951+6231 FIX 05-POS8 ------------------------------------------------------------------------------------------------------------------------------------ 5989( 4) - 01/02/96 15:13 - [ 8] Visit: 05 Visit Requirements: CVZ ORIENT 269.9D to 270.1D BETWEEN 14-FEB-96:00:00:00 AND 18-FEB- 96:00:00:00 On Hold Comments: Additional Comments: The "BETWEEN" constraint is used to select the best part of CVZ in Februari 1996 (the last part). This constraint can be deleted if necessary. The position angle is ESSENTIAL. Changes can be made only after contacting the PI (franx@astro.rug.nl). Please inform the PI of all changes made. Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 17 GAL-CLUS- WFPC2 IMAGE WFALL- F606W CR-SPLIT=0.0 3 1280S POS TARG 13, 13 135951+6231 FIX 05-POS9 ------------------------------------------------------------------------------------------------------------------------------------ 18 GAL-CLUS- WFPC2 IMAGE WFALL- F814W CR-SPLIT=0.0 3 1280S POS TARG 13, 13 135951+6231 FIX 05-POS9 ------------------------------------------------------------------------------------------------------------------------------------ 19 GAL-CLUS- WFPC2 IMAGE WFALL- F606W CR-SPLIT=0.0 3 1280S POS TARG 13, 13 135951+6231 FIX 05-POS10 ------------------------------------------------------------------------------------------------------------------------------------ 20 GAL-CLUS- WFPC2 IMAGE WFALL- F814W CR-SPLIT=0.0 3 1280S POS TARG 13, 13 135951+6231 FIX 05-POS10 ------------------------------------------------------------------------------------------------------------------------------------ 5989( 4) - 01/02/96 15:13 - [ 9] Visit: 06 Visit Requirements: CVZ ORIENT 269.9D to 270.1D BETWEEN 14-FEB-96:00:00:00 AND 18-FEB- 96:00:00:00 On Hold Comments: Additional Comments: The "BETWEEN" constraint is used to select the best part of CVZ in Februari 1996 (the last part). This constraint can be deleted if necessary. The position angle is ESSENTIAL. Changes can be made only after contacting the PI (franx@astro.rug.nl). Please inform the PI of all changes made. Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 21 GAL-CLUS- WFPC2 IMAGE WFALL- F606W CR-SPLIT=0.0 3 1280S POS TARG 13, 13 135951+6231 FIX 05-POS11 ------------------------------------------------------------------------------------------------------------------------------------ 22 GAL-CLUS- WFPC2 IMAGE WFALL- F814W CR-SPLIT=0.0 3 1280S POS TARG 13, 13 135951+6231 FIX 05-POS11 ------------------------------------------------------------------------------------------------------------------------------------ 23 GAL-CLUS- WFPC2 IMAGE WFALL- F606W CR-SPLIT=0.0 3 1280S POS TARG 13, 13 135951+6231 FIX 05-POS12 ------------------------------------------------------------------------------------------------------------------------------------ 24 GAL-CLUS- WFPC2 IMAGE WFALL- F814W CR-SPLIT=0.0 3 1280S POS TARG 13, 13 135951+6231 FIX 05-POS12 ------------------------------------------------------------------------------------------------------------------------------------ 5989( 4) - 01/02/96 15:13 - [ 10] Summary Form for Proposal 5989 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Configurations WFPC2 ------------------------------------------------------------------------------------------------------------------------------------ Opmodes IMAGE ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters CR-SPLIT=0.0 ------------------------------------------------------------------------------------------------------------------------------------ Proposal Category GO ------------------------------------------------------------------------------------------------------------------------------------ Scientific Category Galaxies & Clusters ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements CVZ ORIENT 269.9D to 270.1D BETWEEN 14-FEB-96 00 00 00 AND 18-FEB-96 00 00 00 POS TARG 13, 13 ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F606W F814W ------------------------------------------------------------------------------------------------------------------------------------ Target Names GAL-CLUS-135951+623105-POS1 GAL-CLUS-135951+623105-POS2 GAL-CLUS-135951+623105-POS3 GAL-CLUS-135951+623105-POS4 GAL-CLUS-135951+623105-POS5 GAL-CLUS-135951+623105-POS6 GAL-CLUS-135951+623105-POS7 GAL-CLUS-135951+623105-POS8 GAL-CLUS-135951+623105-POS9 GAL-CLUS-135951+623105-POS10 GAL-CLUS-135951+623105-POS11 GAL-CLUS-135951+623105-POS12 ------------------------------------------------------------------------------------------------------------------------------------