6554( 14) - 02/18/99 10:43 - [ 1] PROPOSAL FOR HUBBLE SPACE TELESCOPE OBSERVATIONS ST ScI Use Only ID: 6554 Version: 14 Check-in Date: 06-Mar-1998 11:06:07 1.Proposal Title: Extragalactic Globular Cluster Systems ------------------------------------------------------------------------------------ 2. Proposal For 3. Cycle GO 6 ------------------------------------------------------------------------------------ 4. Investigators Contact? PI: Jean Brodie Lick Observatory CoI: John Huchra Smithsonian Astrophysical Observatory Y CoI: Duncan Forbes Lick Observatory, University of California N CoI: Kenneth Freeman Mount Stromlo and Siding Springs N Observatory CoI: Carl Grillmair Lick Observatory, University of California N ------------------------------------------------------------------------------------ 5. Abstract We propose to use WFPC2 imaging data to compile catalogues of globular clusters (GCs) for 6 galaxies: NGC 524, 1023, 3311, 4365, 4494 and 7619, which cover a range in galaxy luminosity, morphological type, environment, GC specific frequency and GC mean metallicity. The primary scientific aims of this program are: 1) To study the GC systems of galaxies of various types and in different environments (e.g. isolated/centrally located within rich/poor clusters of galaxies) to explore possible correlations of GC properties (colors, metallicities, kinematics) with parent galaxy properties (luminosity, morphology, environment, specific frequency, merger history). 2) To derive globular cluster luminosity functions (GCLFs) for program galaxies and determine the extent to which the luminosity of the peak in the function is universal. The peak luminosity will be used as a standard candle for distance determinations relevant to estimations of H_0. Surface brightness fluctuation (SBF) measurements exist for all but one of the target galaxies and will provide a calibration of the GCLF distances. A major objective is to obtain accurate identifications (magnitudes, colors and positions) of GCs for follow-up spectroscopy with the Keck telescope for abundances and kinematics. Spectroscopy will be feasible down to V=24 which will allow the most complete study to date of GC systems beyond the Local Group. ------------------------------------------------------------------------------------ 6554( 14) - 02/18/99 10:43 - [ 2] Observations Description ------------------------ We propose to obtain images at two pointings for each galaxy, the central region and a region offset by 2' from the central pointing. We wish to observe in two filters (F555W and F814W) at each pointing. Both image size and V-I colors will be used to discriminate against background galaxies and V--I colors will provide an estimate of metallicity for those GCs too faint (24 Visit Requirements: On Hold Comments: Additional Comments: Nucleus and N of NGC524. Nuc exposures centered on PC and all exposures in this visit implicitly in the SAME ORIENT. Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 NGC524 WFPC2 IMAGE PC1 F555W CR-SPLIT=NO 1 900 S LOW-SKY Comments: NGC524 Nucleus. ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC524 WFPC2 IMAGE PC1 F555W CR-SPLIT=NO 1 900 S LOW-SKY EXPAND END ORBIT Comments: NGC524 Nucleus. ------------------------------------------------------------------------------------------------------------------------------------ 3 NGC524 WFPC2 IMAGE PC1 F814W CR-SPLIT=NO 1 900 S LOW-SKY Comments: NGC524 Nucleus ------------------------------------------------------------------------------------------------------------------------------------ 4 NGC524 WFPC2 IMAGE PC1 F814W CR-SPLIT=NO 1 900 S LOW-SKY EXPAND END ORBIT Comments: NGC524 Nucleus ------------------------------------------------------------------------------------------------------------------------------------ 5 NGC524NORTH WFPC2 IMAGE PC1 F814W CR-SPLIT=NO 1 900 S LOW-SKY Comments: NGC524 North field. ------------------------------------------------------------------------------------------------------------------------------------ 6 NGC524NORTH WFPC2 IMAGE PC1 F814W CR-SPLIT=NO 1 900 S LOW-SKY EXPAND END ORBIT Comments: NGC524 North field. ------------------------------------------------------------------------------------------------------------------------------------ 7 NGC524NORTH WFPC2 IMAGE PC1 F555W CR-SPLIT=NO 1 900 S LOW-SKY EXPAND Comments: NGC524 North field. ------------------------------------------------------------------------------------------------------------------------------------ 8 NGC524NORTH WFPC2 IMAGE PC1 F555W CR-SPLIT=NO 1 900 S LOW-SKY EXPAND END ORBIT Comments: NGC524 North field. ------------------------------------------------------------------------------------------------------------------------------------ 6554( 14) - 02/18/99 10:43 - [ 7] Visit: 02 Visit Priority: Visit Requirements: On Hold Comments: Additional Comments: Nucleus and N of NGC1023. Nuc exposures centered on PC and all exposures in this visit implicitly in the SAME ORIENT. Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 NGC1023 WFPC2 IMAGE PC1 F555W CR-SPLIT=NO 1 900 S LOW-SKY Comments: NGC1023 Nucleus. ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC1023 WFPC2 IMAGE PC1 F555W CR-SPLIT=NO 1 900 S LOW-SKY EXPAND END ORBIT Comments: NGC1023 Nucleus. ------------------------------------------------------------------------------------------------------------------------------------ 3 NGC1023 WFPC2 IMAGE PC1 F814W CR-SPLIT=NO 1 900 S LOW-SKY Comments: NGC1023 Nucleus ------------------------------------------------------------------------------------------------------------------------------------ 4 NGC1023 WFPC2 IMAGE PC1 F814W CR-SPLIT=NO 1 900 S LOW-SKY EXPAND END ORBIT Comments: NGC1023 Nucleus ------------------------------------------------------------------------------------------------------------------------------------ 5 NGC1023NORT WFPC2 IMAGE PC1 F814W CR-SPLIT=NO 1 900 S LOW-SKY H Comments: NGC1023 North field. ------------------------------------------------------------------------------------------------------------------------------------ 6 NGC1023NORT WFPC2 IMAGE PC1 F814W CR-SPLIT=NO 1 900 S LOW-SKY EXPAND END ORBIT H Comments: NGC1023 North field. ------------------------------------------------------------------------------------------------------------------------------------ 7 NGC1023NORT WFPC2 IMAGE PC1 F555W CR-SPLIT=NO 1 900 S LOW-SKY H Comments: NGC1023 North field. ------------------------------------------------------------------------------------------------------------------------------------ 8 NGC1023NORT WFPC2 IMAGE PC1 F555W CR-SPLIT=NO 1 900 S LOW-SKY EXPAND END ORBIT H Comments: NGC1023 North field. ------------------------------------------------------------------------------------------------------------------------------------ 6554( 14) - 02/18/99 10:43 - [ 8] Visit: 03 Visit Priority: Visit Requirements: ORIENT 287D TO 295D VISIBILITY INTERVAL 48 M 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 NGC3311 WFPC2 IMAGE PC1 F555W CR-SPLIT=NO 1 900 S LOW-SKY Comments: NGC3311 Nucleus. ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC3311 WFPC2 IMAGE PC1 F555W CR-SPLIT=NO 1 900 S LOW-SKY EXPAND END ORBIT POS TARG 0.250, 0.250 Comments: NGC3311 Nucleus. ------------------------------------------------------------------------------------------------------------------------------------ 3 NGC3311 WFPC2 IMAGE PC1 F555W CR-SPLIT=NO 1 900 S LOW-SKY Comments: NGC3311 Nucleus. ------------------------------------------------------------------------------------------------------------------------------------ 4 NGC3311 WFPC2 IMAGE PC1 F555W CR-SPLIT=NO 1 900 S LOW-SKY EXPAND END ORBIT POS TARG 0.250, 0.250 Comments: NGC3311 Nucleus. ------------------------------------------------------------------------------------------------------------------------------------ 5 NGC3311 WFPC2 IMAGE PC1 F814W CR-SPLIT=NO 1 900 S LOW-SKY Comments: NGC3311 Nucleus ------------------------------------------------------------------------------------------------------------------------------------ 6 NGC3311 WFPC2 IMAGE PC1 F814W CR-SPLIT=NO 1 900 S LOW-SKY EXPAND END ORBIT POS TARG 0.250, 0.250 Comments: NGC3311 Nucleus ------------------------------------------------------------------------------------------------------------------------------------ 7 NGC3311 WFPC2 IMAGE PC1 F814W CR-SPLIT=NO 1 900 S LOW-SKY Comments: NGC3311 Nucleus ------------------------------------------------------------------------------------------------------------------------------------ 8 NGC3311 WFPC2 IMAGE PC1 F814W CR-SPLIT=NO 1 900 S LOW-SKY EXPAND END ORBIT POS TARG 0.250, 0.250 Comments: NGC3311 Nucleus ------------------------------------------------------------------------------------------------------------------------------------ 6554( 14) - 02/18/99 10:43 - [ 9] Visit: 04 Visit Priority: Visit Requirements: On Hold Comments: Additional Comments: Nucleus NGC 4733. Nuc exposures centered on PC and all exposures in this visit implicitly in the SAME ORIENT. Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 NGC4733 WFPC2 IMAGE PC1 F555W CR-SPLIT=NO 1 900 S LOW-SKY Comments: NGC4733 Nucleus. ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC4733 WFPC2 IMAGE PC1 F555W CR-SPLIT=NO 1 900 S LOW-SKY EXPAND END ORBIT Comments: NGC4733 Nucleus. ------------------------------------------------------------------------------------------------------------------------------------ 3 NGC4733 WFPC2 IMAGE PC1 F814W CR-SPLIT=NO 1 900 S LOW-SKY Comments: NGC4733 Nucleus ------------------------------------------------------------------------------------------------------------------------------------ 4 NGC4733 WFPC2 IMAGE PC1 F814W CR-SPLIT=NO 1 900 S LOW-SKY EXPAND END ORBIT Comments: NGC4733 Nucleus ------------------------------------------------------------------------------------------------------------------------------------ 6554( 14) - 02/18/99 10:43 - [ 10] Visit: 05 Visit Priority: Visit Requirements: On Hold Comments: Additional Comments: Nucleus and N of NGC4494. Nuc exposures centered on PC and all exposures in this visit implicitly in the SAME ORIENT. Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 NGC4494 WFPC2 IMAGE PC1 F555W CR-SPLIT=NO 1 900 S LOW-SKY Comments: NGC4494 Nucleus. ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC4494 WFPC2 IMAGE PC1 F555W CR-SPLIT=NO 1 900 S LOW-SKY END ORBIT EXPAND Comments: NGC4494 Nucleus. ------------------------------------------------------------------------------------------------------------------------------------ 3 NGC4494 WFPC2 IMAGE PC1 F814W CR-SPLIT=NO 1 900 S LOW-SKY Comments: NGC4494 Nucleus ------------------------------------------------------------------------------------------------------------------------------------ 4 NGC4494 WFPC2 IMAGE PC1 F814W CR-SPLIT=NO 1 900 S LOW-SKY END ORBIT MAX DUR Comments: NGC4494 Nucleus ------------------------------------------------------------------------------------------------------------------------------------ 5 NGC4494NORT WFPC2 IMAGE PC1 F814W CR-SPLIT=NO 1 810 S LOW-SKY H Comments: NGC4494 North field. ------------------------------------------------------------------------------------------------------------------------------------ 6 NGC4494NORT WFPC2 IMAGE PC1 F814W CR-SPLIT=NO 1 810 S LOW-SKY END ORBIT MAX DUR H Comments: NGC4494 North field. ------------------------------------------------------------------------------------------------------------------------------------ 7 NGC4494NORT WFPC2 IMAGE PC1 F555W CR-SPLIT=NO 1 900 S LOW-SKY H Comments: NGC4494 North field. ------------------------------------------------------------------------------------------------------------------------------------ 8 NGC4494NORT WFPC2 IMAGE PC1 F555W CR-SPLIT=NO 1 900 S LOW-SKY END ORBIT EXPAND H Comments: NGC4494 North field. ------------------------------------------------------------------------------------------------------------------------------------ 6554( 14) - 02/18/99 10:43 - [ 11] Visit: 06 Visit Priority: Visit Requirements: On Hold Comments: Additional Comments: Nuclei of NGC7619. Nuc exposures centered on PC and all exposures in this visit implicitly in the SAME ORIENT. Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 NGC7619 WFPC2 IMAGE PC1 F555W CR-SPLIT=NO 1 900 S LOW-SKY Comments: NGC7619 Nucleus. ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC7619 WFPC2 IMAGE PC1 F555W CR-SPLIT=NO 1 900 S LOW-SKY EXPAND END ORBIT POS TARG 0.250, 0.250 Comments: NGC7619 Nucleus. ------------------------------------------------------------------------------------------------------------------------------------ 3 NGC7619 WFPC2 IMAGE PC1 F814W CR-SPLIT=NO 1 900 S LOW-SKY Comments: NGC7619 Nucleus ------------------------------------------------------------------------------------------------------------------------------------ 4 NGC7619 WFPC2 IMAGE PC1 F814W CR-SPLIT=NO 1 900 S LOW-SKY EXPAND END ORBIT POS TARG 0.250, 0.250 Comments: NGC7619 Nucleus ------------------------------------------------------------------------------------------------------------------------------------ 6554( 14) - 02/18/99 10:43 - [ 12] Visit: 07 Visit Priority: Visit Requirements: ORIENT 17D TO 25D 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 ------------------------------------------------------------------------------------------------------------------------------------ 9 NGC3309 WFPC2 IMAGE PC1 F814W CR-SPLIT=NO 1 900 S LOW-SKY ------------------------------------------------------------------------------------------------------------------------------------ 10 NGC3309 WFPC2 IMAGE PC1 F814W CR-SPLIT=NO 1 900 S LOW-SKY EXPAND END ORBIT POS TARG 0.250, 0.250 ------------------------------------------------------------------------------------------------------------------------------------ 11 NGC3309 WFPC2 IMAGE PC1 F814W CR-SPLIT=NO 1 900 S LOW-SKY ------------------------------------------------------------------------------------------------------------------------------------ 12 NGC3309 WFPC2 IMAGE PC1 F814W CR-SPLIT=NO 1 900 S LOW-SKY EXPAND END ORBIT POS TARG 0.250, 0.250 ------------------------------------------------------------------------------------------------------------------------------------ 13 NGC3309 WFPC2 IMAGE PC1 F555W CR-SPLIT=NO 1 900 S LOW-SKY ------------------------------------------------------------------------------------------------------------------------------------ 14 NGC3309 WFPC2 IMAGE PC1 F555W CR-SPLIT=NO 1 900 S LOW-SKY EXPAND END ORBIT POS TARG 0.250, 0.250 ------------------------------------------------------------------------------------------------------------------------------------ 15 NGC3309 WFPC2 IMAGE PC1 F555W CR-SPLIT=NO 1 900 S LOW-SKY ------------------------------------------------------------------------------------------------------------------------------------ 16 NGC3309 WFPC2 IMAGE PC1 F555W CR-SPLIT=NO 1 900 S LOW-SKY EXPAND END ORBIT POS TARG 0.250, 0.250 ------------------------------------------------------------------------------------------------------------------------------------ 6554( 14) - 02/18/99 10:43 - [ 13] Visit: 08 Visit Priority: Visit Requirements: On Hold Comments: Additional Comments: Exposures centered on PC and all exposures in this visit implicitly in the SAME ORIENT. Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 5 NGC4365NORT WFPC2 IMAGE PC1 F814W CR-SPLIT=NO 1 900 S LOW-SKY H Comments: NGC4365 North field. ------------------------------------------------------------------------------------------------------------------------------------ 6 NGC4365NORT WFPC2 IMAGE PC1 F814W CR-SPLIT=NO 1 900 S LOW-SKY EXPAND END ORBIT H Comments: NGC4365 North field. ------------------------------------------------------------------------------------------------------------------------------------ 7 NGC4365NORT WFPC2 IMAGE PC1 F555W CR-SPLIT=NO 1 900 S LOW-SKY H Comments: NGC4365 North field. ------------------------------------------------------------------------------------------------------------------------------------ 8 NGC4365NORT WFPC2 IMAGE PC1 F555W CR-SPLIT=NO 1 900 S LOW-SKY EXPAND END ORBIT H Comments: NGC4365 North field. ------------------------------------------------------------------------------------------------------------------------------------ 6554( 14) - 02/18/99 10:43 - [ 14] Visit: 09 Visit Priority: Visit Requirements: On Hold Comments: Additional Comments: Nuclei of NGC7562. Nuc exposures centered on PC and all exposures in this visit implicitly in the SAME ORIENT. Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 5 NGC7562 WFPC2 IMAGE PC1 F814W CR-SPLIT=NO 1 900 S LOW-SKY ------------------------------------------------------------------------------------------------------------------------------------ 6 NGC7562 WFPC2 IMAGE PC1 F814W CR-SPLIT=NO 1 900 S LOW-SKY EXPAND END ORBIT POS TARG 0.250, 0.250 ------------------------------------------------------------------------------------------------------------------------------------ 7 NGC7562 WFPC2 IMAGE PC1 F555W CR-SPLIT=NO 1 900 S LOW-SKY ------------------------------------------------------------------------------------------------------------------------------------ 8 NGC7562 WFPC2 IMAGE PC1 F555W CR-SPLIT=NO 1 900 S LOW-SKY EXPAND END ORBIT POS TARG 0.250, 0.250 ------------------------------------------------------------------------------------------------------------------------------------ 6554( 14) - 02/18/99 10:43 - [ 15] Summary Form for Proposal 6554 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures PC1 ------------------------------------------------------------------------------------------------------------------------------------ Configurations WFPC2 ------------------------------------------------------------------------------------------------------------------------------------ Opmodes IMAGE ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters CR-SPLIT=NO ------------------------------------------------------------------------------------------------------------------------------------ Proposal Category GO ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements LOW-SKY LOW-SKY EXPAND END ORBIT LOW-SKY EXPAND ORIENT 287D TO 295D VISIBILITY INTERVAL 48 M LOW-SKY EXPAND END ORBIT POS TARG 0.250, 0.250 LOW-SKY END ORBIT EXPAND LOW-SKY END ORBIT MAX DUR ORIENT 17D TO 25D ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F555W F814W ------------------------------------------------------------------------------------------------------------------------------------ Target Names NGC524 NGC524NORTH NGC1023 NGC1023NORTH NGC3311 NGC4733 NGC4494 NGC4494NORTH NGC7619 NGC3309 NGC4365NORTH NGC7562 ------------------------------------------------------------------------------------------------------------------------------------