! File: 1115C.PROP ! Database: PEPDB ! Date: 16-FEB-1994:02:18:48 coverpage: title_1: FAINT CLUSTERS OF GALAXIES (WF/PC-10): title_2: CYCLE 3 AND FUTURE-CYCLE CONTINUATION sci_cat: GALAXIES & CLUSTERS proposal_for: GTO/WFC pi_title: PROF. pi_fname: JAMES pi_mi: A. pi_lname: WESTPHAL pi_inst: CALTECH pi_country: USA pi_phone: (818) 356-4900 keywords_1: BRIGHTEST GALAXY, COSMOLOGY, SPIRAL GALAXY, GALAXY keywords_2: EVOLUTION, GALAXY MORPHOLOGY, DISTANT GALAXY CLUSTER hours_pri: 43.40 num_pri: 13 pi_position: PROFESSOR OF PLANETA ! end of coverpage abstract: line_1: Ten distant clusters of galaxies, with redshifts from 0.39 to about 1.2, will line_2: be imaged in two colors corresponding to rest wavelengths of about 3600 and line_3: 5000 angstroms. The primary object of the study is to investigate the color line_4: and morphological evolution of cluster galaxies. Sufficient signal-to-noise line_5: will be obtained for all objects to see spiral structure if present in the line_6: brighter galaxies, and the morphologies of the clusters cover the range from line_7: extremely open to extremely compact. In addition, the data will yield line_8: structural parameters for the bright cluster ellipticals in the sample, which line_9: will aid in interpreting the classical Hubble diagram for the determination of line_10: the deceleration parameter. Several of the nearby clusters exhibit the line_11: Butcher-Oemler excess of blue galaxies and these data should elucidate their line_12: nature. ! ! end of abstract general_form_proposers: lname: WESTPHAL fname: JAMES title: PROF. mi: A. inst: CALTECH country: USA ! ! end of general_form_proposers block general_form_text: question: 3 section: 0 line_1: There are still unresolved positions corrections weather permitting, all line_2: will be done by fall '86 ! question: 3 section: 1 line_1: The observations consist of imaging a set of distant clusters in two line_2: colors (except the most distant cluster in the sample, for which the rest 5000 line_3: angstrom filter corresponds to a passband beyond the red limit of our line_4: instrument) with exposures calculated to give comparable signal-to-noise for line_5: all objects. The nearest clusters need exposures of all orbits in each of two line_6: filters, accompanied by shorter cosmic-ray reject exposures. The longest line_7: sequences are for the clusters at 0.9 and 1, for which the contiguous dwell in line_8: a single filter is 6 and 10 orbits respectively. line_10: The lack of knowledge of the launch date makes the specification of cycles line_11: meaningless: in general, we want the easier observations early, the very line_12: difficult ones late. So we need: some lines in Cycle 2 and some in Cycle 9 line_17: The rest are not critical as to which cycle, but do need to be made fairly line_18: close, to the antisolar point (see Section 6). No flux levels or S/N's are line_19: given because the clusters are aggregates of heterogeneous objects. We want line_20: simply to go a faint as we can in the time we can afford; simulations indicate line_21: that we can detect spiral structure in bright galaxies at the relevant line_22: redshifts with the exposure times given, IF you give us uninterrupted exposures line_23: in a reasonably dark sky. ! question: 6 section: 1 line_1: All the exposures are specified as non-interruptible because one should line_2: never interrupt a WF/PC exposure which is trying to go faint. It would save line_3: people nightmares and save one or more of you from being strung up by irate line_4: observers if you simply promised NEVER to interrupt a WF/PC exposure. line_6: It is also desired that all exposures longer than 1000 sec be taken after line_7: the telescope has passed beyond the brightly lit limb of the Earth (see note on line_8: "dark time" on exposure logsheets). It is not requested that the telescope line_9: actually be within the Earth's shadow. Dark time is needed to minimize diffuse line_10: scattered light and maximize S/N on faint features. The above guideline of line_11: 1000 sec may need modification after real experience in orbit. (Note, the dark line_12: time requirement implies that observations for most targets will have to be line_13: taken fairly close to the anti-solar point.) ! question: 13 section: 1 line_1: Ten distant cluster will be studied using multicolor imaging to investigate line_2: morphological and potometric evolution of galaxies and clusters. The data will line_3: also be used to perform classical photometric and angular-diameter cosmological line_4: tests. The redshift range covers clusters from 0.4 to about 1.2. The clusters line_5: are: 094949+440848, 002400+165300, 0939942+471306, 3C295, 002013+040754, line_6: 132229+311436, 132227+302718, 215519+033412, 160244+431254, 131642+313218 ! !end of general form text general_form_address: lname: BAUM fname: WILLIAM category: CON inst: LOWELL OBSERVATORY addr_1: PLANETARY RESEARCH CENTER city: FLAGSTAFF state: AZ zip: 86002 country: USA phone: (602) 774-3358 ! lname: GUNN fname: JAMES mi: E. category: CON inst: PRINCETON UNIVERSITY addr_1: ASTRPHYSICAL SCIENCE addr_2: PEYTON HALL city: PRINCETON state: NJ zip: 08540 country: USA phone: (609) 452-3802 ! lname: FABER fname: SANDRA mi: M. category: CON inst: UC SANTA CRUZ - LICK OBSERVATORY addr_1: NATURAL SCIENCE II, BLDG 160 city: SANTA CRUZ state: CA zip: 95064 country: USA phone: (408) 429-2944 ! lname: WESTPHAL fname: JAMES mi: A. title: PROF. category: PI inst: CALTECH addr_1: M/S 170-25 addr_2: DIVISION OF GEOLOGICAL addr_3: & PLANETARY SCIENCES city: PASADENA state: CA zip: 91125 country: USA phone: (818) 356-4900 ! ! end of general_form_address records fixed_targets: targnum: 1 name_1: GAL-CLUS-094949+440848 descr_1: F pos_1: RA= 09H49M47.9S +/-1S, pos_2: DEC= +44D09'16" +/-15" equinox: 1950 rv_or_z: Z=0.40 comment_1: COORD UPDATE JEG 89/09/25 comment_2: Z = 0.40 CLUSTER OF GALAXIES ! targnum: 2 name_1: GAL-CLUS-002400+165300 descr_1: F pos_1: RA= 00H23M56.9S +/-0.1S, pos_2: DEC= +16D53'10" +/-1" equinox: 1950 rv_or_z: Z=0.39 comment_1: COORD UPDATE JEG 89/09/25 comment_2: Z = 0.39 CLUSTER OF GALAXIES ! targnum: 3 name_1: GAL-CLUS-002400+165300-75-EAST descr_1: F pos_1: RA= 00H24M05.0S +/-0.1S, pos_2: DEC= +16D53'00" +/-1" equinox: 1950 rv_or_z: Z=0.39 comment_1: EDGE OF Z = 0.39 CLUSTER OF comment_2: GALAXIES ! targnum: 4 name_1: GAL-CLUS-093942+471306-FLD1 descr_1: F pos_1: RA= 09H39M42.0S +/-0.1S, pos_2: DEC= +47D12'34" +/-1" equinox: 1950 rv_or_z: Z=0.40 comment_1: COORD UPDATE 89/09/25 JEG; CORE comment_2: OF Z = 0.40 CLUSTER OF GALAXIES ! targnum: 5 name_1: GAL-CLUS-093942+471306-FLD2 descr_1: F pos_1: RA-OFF = -19.14S +/- 0.1S, pos_2: DEC-OFF = -35" +/-1", pos_3: FROM 4 equinox: 1950 rv_or_z: Z=0.40 comment_1: OUTSKIRTS OF Z = 0.40 CLUSTER OF comment_2: GALAXIES ! targnum: 6 name_1: GAL-CLUS-093942+471306-FLD3 descr_1: F pos_1: RA-OFF = -5.69S +/- 0.1S, pos_2: DEC-OFF = +120" +/-1", pos_3: FROM 4 equinox: 1950 rv_or_z: Z=0.40 comment_1: SUBCONDENSATION IN Z=0.40 CLUSTER comment_2: OF GALAXIES ! targnum: 7 name_1: GAL-CLUS-3C295 descr_1: F pos_1: RA = 14H09M33.3S +/-0.1S, pos_2: DEC= +52D26'12" +/-1" equinox: 1950 rv_or_z: Z=0.46 comment_2: Z = 0.46 CLUSTER OF GALAXIES ! targnum: 8 name_1: GAL-CLUS-002013+040754 descr_1: F, 406 pos_1: RA= 00H20M19.0S +/-0.2S, pos_2: DEC= +04D07'40" +/-5" equinox: 1950 rv_or_z: Z=0.70 comment_2: Z = 0.70 CLUSTER OF GALAXIES ! targnum: 9 name_1: GAL-CLUS-132229+311436 descr_1: F, 406 pos_2: RA= 13H22M29.2S +/-0.1S, pos_3: DEC= +31D14'38" +/-1" equinox: 1950 rv_or_z: Z=0.72 comment_2: Z = 0.72 CLUSTER OF GALAXIES ! targnum: 10 name_1: GAL-CLUS-132227+302718 descr_1: F, 406 pos_2: RA = 13H22M29.0S +/-1S, pos_3: DEC= +30D27'24" +/-15" equinox: 1950 rv_or_z: Z=0.76 comment_1: COORD UPDATE 89/09/25 JEG comment_2: Z = 0.76 CLUSTER OF GALAXIES ! targnum: 11 name_1: GAL-CLUS-215519+033412 descr_1: F, 406 pos_1: RA= 21H55M24.4S +/-0.4S, pos_2: DEC= +03D33'34" +/-5" equinox: 1950 rv_or_z: Z=0.80 comment_2: Z = 0.80 CLUSTER OF GALAXIES ! targnum: 12 name_1: GAL-CLUS-160244+431254 descr_1: F, 406 pos_1: RA= 16H02M44.0S +/-1S, pos_2: DEC= +43D12'54" +/-15" equinox: 1950 rv_or_z: Z=0.92 comment_1: COORD OK JEG 89/09/25 comment_2: Z = 0.92 CLUSTER OF GALAXIES ! targnum: 13 name_1: GAL-CLUS-131642+313218 descr_1: F, 406 pos_2: RA= 13H16M55.9S +/-0.1S, pos_3: DEC= +31D33'02" +/-1" equinox: 1950 rv_or_z: Z=1.0 comment_1: COORD OK JEG 89/09/25 comment_2: Z > 1 CLUSTER OF GALAXIES ! ! end of fixed targets ! No solar system records found ! No generic target records found exposure_logsheet: linenum: 1.000 sequence_1: DEFINE sequence_2: CREXP targname: # config: WFC opmode: IMAGE aperture: ALL sp_element: # num_exp: 1 time_per_exp: 700S priority: # param_1: CR-SPLIT=0.5, param_2: CR-TOLERANCE=0.0, param_3: PRE-FLASH=NO, comment_1: THIS EXPOSURE TO FIT IN ONE ORBIT. comment_2: ADJUST EXPOSURE TIME +/- 20 PERCENT comment_3: TO ACCOMPLISH. comment_4: CYCLE 3-9 VERSION: comment_5: JEG/RML 3/25/92 11:20. comment_6: OLDEXP = 2200S ! linenum: 3.000 sequence_1: DEFINE sequence_2: MEXP targname: # config: WFC opmode: IMAGE aperture: ALL sp_element: # num_exp: # time_per_exp: 700S priority: # param_1: CR-SPLIT=NO, param_2: PRE-FLASH=NO comment_1: THIS SEQUENCE IS INTENDED TO FIT comment_2: EACH EXPOSURE INTO 1 ORBIT. comment_3: ADJUST EXPOSURE TIME +/- 20 PERCENT comment_4: TO ACCOMPLISH. comment_6: OLDEXP = 2300S ! linenum: 4.000 sequence_1: USE sequence_2: CREXP targname: GAL-CLUS-002400+165300 sp_element: F555W priority: 1 req_1: CYCLE 3 / 4-27; req_2: GROUP 4-5 WITHIN 1D; req_3: SAME POS FOR 5 AS 4; req_4: SAME ORIENT FOR 5 AS 4; req_5: NON-INT / 4-328; req_6: POS TARG 10,-10 / 4-27; ! linenum: 5.000 sequence_1: ^ targname: ^ sp_element: F702W priority: ^ req_1: GROUP 4-5 WITHIN 1D; ! linenum: 5.100 sequence_1: USE sequence_2: MEXP targname: GAL-CLUS-002400+165300 sp_element: F555W num_exp: 2 priority: 2 ! linenum: 5.200 sequence_1: ^ targname: ^ sp_element: F702W num_exp: ^ priority: ^ req_1: GROUP 5.1-5.2 WITHIN 1D; req_2: SAME POS FOR 5.1-5.2 AS 4; req_3: SAME ORIENT FOR 5.1-5.2 AS 4; ! linenum: 8.000 sequence_1: USE CREXP targname: GAL-CLUS-094949+440848 sp_element: F555W priority: 2 ! linenum: 9.000 sequence_1: USE CREXP targname: GAL-CLUS-094949+440848 sp_element: F702W priority: 2 req_1: GROUP 8-9 WITHIN 1D; req_3: SAME POS FOR 9 AS 8; req_4: SAME ORIENT FOR 9 AS 8; ! linenum: 9.100 sequence_1: USE MEXP targname: GAL-CLUS-094949+440848 sp_element: F555W num_exp: 2 priority: 2 ! linenum: 9.200 sequence_1: USE MEXP targname: GAL-CLUS-094949+440848 sp_element: F702W num_exp: 2 priority: 2 req_1: GROUP 9.1-9.2 WITHIN 1D; req_3: SAME POS FOR 9.1-9.2 AS 8; req_4: SAME ORIENT FOR 9.1-9.2 AS 8; ! linenum: 16.000 sequence_1: USE sequence_2: MEXP targname: GAL-CLUS-3C295 sp_element: F555W num_exp: 3 priority: 2 ! linenum: 17.000 sequence_1: ^ targname: ^ sp_element: F702W num_exp: ^ priority: ^ req_1: GROUP 16-17 WITHIN 2D; req_3: SAME POS FOR 17 AS 16; req_4: SAME ORIENT FOR 17 AS 16; ! linenum: 22.000 sequence_1: USE MEXP targname: GAL-CLUS-132227+302718 sp_element: F622W num_exp: 5 priority: 1 req_1: GROUP 22-23 WITHIN 5D; req_3: SAME POS FOR 23 AS 22; req_4: SAME ORIENT FOR 23 AS 22; ! linenum: 23.000 sequence_1: USE MEXP targname: GAL-CLUS-132227+302718 sp_element: F785LP num_exp: 5 priority: 1 ! linenum: 26.000 sequence_1: USE MEXP targname: GAL-CLUS-160244+431254 sp_element: F702W num_exp: 8 priority: 1 req_1: GROUP 26-27 WITHIN 10D; req_3: SAME POS FOR 27 AS 26; req_4: SAME ORIENT FOR 27 AS 26; ! linenum: 27.000 sequence_1: USE MEXP targname: GAL-CLUS-160244+431254 sp_element: F850LP num_exp: 8 priority: 1 ! linenum: 306.000 sequence_1: USE CREXP targname: GAL-CLUS-002400+165300-75-EAST sp_element: F555W priority: 9 req_1: CYCLE 4 / 306-328; req_2: POS TARG 10,-10 / 306-328; req_3: COND IF TAC OK / 306-328; ! linenum: 307.000 sequence_1: USE CREXP targname: GAL-CLUS-002400+165300-75-EAST sp_element: F702W priority: 9 req_1: GROUP 306-307 WITHIN 1D; ! linenum: 310.000 sequence_1: USE CREXP targname: GAL-CLUS-093942+471306-FLD1 sp_element: F555W priority: 9 req_2: SAME POS FOR 311 AS 310; req_3: SAME ORIENT FOR 311 AS 310; ! linenum: 311.000 sequence_1: USE CREXP targname: GAL-CLUS-093942+471306-FLD1 sp_element: F702W priority: 9 req_1: GROUP 310-311 WITHIN 1D; ! linenum: 312.000 sequence_1: USE CREXP targname: GAL-CLUS-093942+471306-FLD2 sp_element: F555W priority: 9 req_2: SAME POS FOR 313 AS 312; req_3: SAME ORIENT FOR 313 AS 312; ! linenum: 313.000 sequence_1: USE CREXP targname: GAL-CLUS-093942+471306-FLD2 sp_element: F702W priority: 9 req_1: GROUP 312-313 WITHIN 1D; ! linenum: 314.000 sequence_1: USE CREXP targname: GAL-CLUS-093942+471306-FLD3 sp_element: F555W priority: 9 req_2: SAME POS FOR 315 AS 314; req_3: SAME ORIENT FOR 315 AS 314; ! linenum: 315.000 sequence_1: USE CREXP targname: GAL-CLUS-093942+471306-FLD3 sp_element: F702W priority: 9 req_1: GROUP 314-315 WITHIN 1D; ! linenum: 318.000 sequence_1: USE MEXP targname: GAL-CLUS-002013+040754 sp_element: F622W num_exp: 3 priority: 9 req_1: GROUP 318-319 WITHIN 2D; req_3: SAME POS FOR 319 AS 318; req_4: SAME ORIENT FOR 319 AS 318; ! linenum: 319.000 sequence_1: USE MEXP targname: GAL-CLUS-002013+040754 sp_element: F785LP num_exp: 3 priority: 9 ! linenum: 320.000 sequence_1: USE MEXP targname: GAL-CLUS-132229+311436 sp_element: F622W num_exp: 3 priority: 9 req_1: GROUP 320-321 WITHIN 3D; req_3: SAME POS FOR 321 AS 320; req_4: SAME ORIENT FOR 321 AS 320; ! linenum: 321.000 sequence_1: USE MEXP targname: GAL-CLUS-132229+311436 sp_element: F785LP num_exp: 3 priority: 9 ! linenum: 324.000 sequence_1: USE MEXP targname: GAL-CLUS-215519+033412 sp_element: F622W num_exp: 3 priority: 9 ! linenum: 325.000 sequence_1: USE MEXP targname: GAL-CLUS-215519+033412 sp_element: F785LP num_exp: 3 priority: 9 req_1: GROUP 324-325 WITHIN 3D; req_3: SAME POS FOR 325 AS 324; req_4: SAME ORIENT FOR 325 AS 324; ! linenum: 328.000 sequence_1: USE MEXP targname: GAL-CLUS-131642+313218 sp_element: F725LP num_exp: 10 priority: 9 ! ! end of exposure logsheet ! No scan data records found