8170( 7) - 09/21/00 11:53 - [ 1] PROPOSAL FOR HUBBLE SPACE TELESCOPE OBSERVATIONS ST ScI Use Only ID: 8170 Version: 7 Check-in Date: 28-Apr-2000 09:34:39 1.Proposal Title: Kinematics of the Young Star Clusters and the Gas in the Antennae Galaxies ------------------------------------------------------------------------------------ 2. Proposal For 3. Cycle GO 8 ------------------------------------------------------------------------------------ 4. Investigators Contact? PI: Brad Whitmore Space Telescope Science Institute CoI: Dr. Fran\c cois Schweizer Carnegie Institution of Washington, N Department of Terrestrial Magnetism CoI: Dr. Michael Fall Space Telescope Science Institute N CoI: Dr. Claus Leitherer Space Telescope Science Institute N CoI: Dr. Bryan Miller Leiden Observatory N ------------------------------------------------------------------------------------ 5. Abstract We propose to follow up on our discovery of over 1000 young star clusters in ``The Antennae'' (NGC 4038/4039) by obtaining long-slit and slitless spectra of a representative sample of clusters with STIS. These young clusters have the luminosities, colors, and radii expected of young globular clusters and must have formed during the ongoing merger. Because of their proximity and early stage of merging, the disks of NGC 4038/4039 form an ideal laboratory to study cluster formation in progress. While we have GHRS spectra of two bright clusters, the greater sensitivity and two- dimensional capabilities of STIS will allow us to systematically study the kinematics of the stellar and gaseous components at unprecedented spatial resolution over a large fraction of the galaxy. In particular, we will be able to determine whether the velocity dispersion of the clusters increases with age, as would be expected as the process of ``violent relaxation'' turns two disk systems into an elli ptical galaxy. In addition, more accurate measurements of ages from the long-slit spectra will provide an important consistency check on our earlier work using UBVI photometry and H Alpha\ imaging, and will make a variety of new studies possible (e.g., a search for evidence of propagating star formation). ------------------------------------------------------------------------------------ 8170( 7) - 09/21/00 11:53 - [ 2] Observations Description ------------------------ ??? Real Time Justification ----------------------- Calibration Justification ------------------------- Additional Comments ------------------- ------------------------------------------------------------------------------------ Data Distribution Paper Products: NO Media: ELECTRONIC Blocking Factor: 10 Ship To: PI_Address Ship Via: Email: ------------------------------------------------------------------------------------ 8170( 7) - 09/21/00 11:53 - [ 3] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 NGC4038-405 EXT-CLUSTER, OPEN RA=180.4600781D +/- 0.0001D, J2000 V=1500 V = 17.6 CLUSTER DEC=-18.8698852D +/- 0.0001D Coordinate Source: Comments: Fluxes and positions from earlier WFPC2 observations 2 NGC4038-289 EXT-CLUSTER, OPEN RA=180.4603004D +/- 0.0001D, J2000 V=1500 V = 19.6 CLUSTER DEC=-18.872227D +/- 0.0001D Coordinate Source: Comments: Fluxes and positions from earlier WFPC2 observations 3 NGC4038- EXT-STAR RA=180.4653377D +/- 0.0001D, J2000 V=1500 V = 16.6 STAR1 DEC=-18.8593228D +/- 0.0001D Coordinate Source: Comments: Fluxes and positions from earlier WFPC2 observations 4 NGC4038-PCTR EXT-CLUSTER, OPEN RA=180.4715262D +/- 0.0001D, J2000 V=1500 V = 19.7 CLUSTER DEC=-18.8636014D +/- 0.0001D Coordinate Source: Comments: Fluxes and positions from earlier WFPC2 observations 5 NGC4038-688 EXT-CLUSTER, OPEN RA=180.4721991D +/- 0.0001D, J2000 V=1500 V = 19.7 CLUSTER DEC=-18.8612367D +/- 0.0001D Coordinate Source: Comments: Fluxes and positions from earlier WFPC2 observations 6 NGC4038-142 EXT-CLUSTER, OPEN RA=180.4823983D +/- 0.0001D, J2000 V=1500 V = 18.7 CLUSTER DEC=-18.8782051D +/- 0.0001D Coordinate Source: Comments: Fluxes and positions from earlier WFPC2 observations 7 NGC4038-TCTR EXT-CLUSTER, OPEN RA=180.4600688D +/- 0.0001D, J2000 V = 1500 V = 20.0+/-0.5 CLUSTER DEC=-18.8720686D +/- 0.0001D 8 NGC4038-342 EXT-STAR RA=180.4808193D +/- 0.0001D, J2000 V=1500 V = 19.3+/-0.3 DEC=-18.8714010D +/- 0.0001D Coordinate Source: Comments: Fluxes and positions from earlier WFPC2 observations 9 NGC4038-FCTR EXT-CLUSTER, OPEN RA=180.4801988D +/- 0.0001D, J2000 V = 1500 V = 20.0+/-0.5 CLUSTER DEC=-18.8722878D +/- 0.0001D 11 NGC4038-418 EXT-CLUSTER, OPEN RA=180.4779802D +/- 0.0001D, J2000 V = 1500 V = 20.0+/-1.0 CLUSTER DEC=-18.8694846D +/- 0.0001D 8170( 7) - 09/21/00 11:53 - [ 4] Visit: 01 Visit Priority: Visit Requirements: ORIENT 3.3D TO 4.3D SCHED 100% 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 ------------------------------------------------------------------------------------------------------------------------------------ 10 NGC4038-405 STIS/C ACQ F28X50L MIRROR ACQTYPE=POINT 1 5 S ONBOARD ACQ FOR 20-60 CD P Comments: Initial offset acquisition ------------------------------------------------------------------------------------------------------------------------------------ 20 NGC4038-289 STIS/C ACQ/PEA 52X0.2 MIRROR 1 30 S ONBOARD ACQ FOR 30-60 CD K Comments: Peak-up to maximize centering ------------------------------------------------------------------------------------------------------------------------------------ 30 NGC4038-289 STIS/F ACCUM 52X0.2 G140L 1425 1 35 M UV-MAM A ------------------------------------------------------------------------------------------------------------------------------------ 50 NGC4038-289 STIS/F ACCUM 52X2 G140L 1425 1 50 M UV-MAM A ------------------------------------------------------------------------------------------------------------------------------------ 60 NGC4038-289 STIS/F ACCUM 52X2 G140L 1425 1 50 M UV-MAM A ------------------------------------------------------------------------------------------------------------------------------------ 8170( 7) - 09/21/00 11:53 - [ 5] Visit: 02 Visit Priority: Visit Requirements: SAME ORIENT AS 01 SCHED 100% 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 ------------------------------------------------------------------------------------------------------------------------------------ 10 NGC4038-405 STIS/C ACQ F28X50L MIRROR ACQTYPE=POINT 1 5 S ONBOARD ACQ FOR 20 CD P Comments: Initial offset acquisition ------------------------------------------------------------------------------------------------------------------------------------ 20 NGC4038-289 STIS/C ACQ/PEA 52X0.2 MIRROR 1 30 S ONBOARD ACQ FOR 30, 70, CD K 80, 100 Comments: Peak-up to maximize centering ------------------------------------------------------------------------------------------------------------------------------------ 30 NGC4038-289 STIS/C ACCUM 52X0.2 G750M 6768 CR-SPLIT=3 1 27 M CD ------------------------------------------------------------------------------------------------------------------------------------ 70 NGC4038-TCT STIS/C ACCUM 6X6 G430M 3936 CR-SPLIT=3 1 45 M R CD ------------------------------------------------------------------------------------------------------------------------------------ 80 NGC4038-TCT STIS/C ACCUM 6X6 G430M 3936 CR-SPLIT=3 1 32 M R CD ------------------------------------------------------------------------------------------------------------------------------------ 100 NGC4038-TCT STIS/C ACCUM F28X50O MIRROR CR-SPLIT=3 1 6 M R CD II ------------------------------------------------------------------------------------------------------------------------------------ 8170( 7) - 09/21/00 11:53 - [ 6] Visit: 03 Visit Priority: Visit Requirements: ORIENT 53.8D TO 54.8D 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 ------------------------------------------------------------------------------------------------------------------------------------ 10 NGC4038-STA STIS/C ACQ F28X50L MIRROR ACQTYPE=POINT 1 3 S GS ACQ SCENARIO SINGLE R1 CD P Comments: Initial offset acquisition ------------------------------------------------------------------------------------------------------------------------------------ 30 NGC4038-PCT STIS/C ACCUM 52X2 G430M 3936 CR-SPLIT=3 1 36 M R CD ------------------------------------------------------------------------------------------------------------------------------------ 8170( 7) - 09/21/00 11:53 - [ 7] Visit: 04 Visit Priority: Visit Requirements: ORIENT 337.7D TO 338.7D SCHED 100% 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 ------------------------------------------------------------------------------------------------------------------------------------ 60 NGC4038-688 STIS/C ACCUM 50CCD G430M 3936 CR-SPLIT=3 1 40 M CD ------------------------------------------------------------------------------------------------------------------------------------ 70 NGC4038-688 STIS/C ACCUM 50CCD G430M 3936 CR-SPLIT=3 1 35 M CD ------------------------------------------------------------------------------------------------------------------------------------ 80 NGC4038-688 STIS/C ACCUM F28X50O MIRROR CR-SPLIT=2 1 4 M CD II ------------------------------------------------------------------------------------------------------------------------------------ 8170( 7) - 09/21/00 11:53 - [ 8] Visit: 05 Visit Priority: Visit Requirements: ORIENT 81.2D TO 82.2D 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 ------------------------------------------------------------------------------------------------------------------------------------ 10 NGC4038-142 STIS/C ACQ F28X50L MIRROR ACQTYPE=POINT 1 20 S ONBOARD ACQ FOR 30, 40 CD P Comments: Initial acquisition ------------------------------------------------------------------------------------------------------------------------------------ 30 NGC4038-142 STIS/F ACCUM 52X2 G140L 1425 1 35 M POS TARG 0, 4 UV-MAM A ------------------------------------------------------------------------------------------------------------------------------------ 40 NGC4038-142 STIS/F ACCUM 52X2 G140L 1425 1 50 M POS TARG 0, 4 UV-MAM A ------------------------------------------------------------------------------------------------------------------------------------ 8170( 7) - 09/21/00 11:53 - [ 9] Visit: 06 Visit Priority: Visit Requirements: SAME ORIENT AS 05 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 ------------------------------------------------------------------------------------------------------------------------------------ 10 NGC4038-142 STIS/C ACQ F28X50L MIRROR ACQTYPE=POINT 1 20 S ONBOARD ACQ FOR 30 CD P Comments: Initial aquisition ------------------------------------------------------------------------------------------------------------------------------------ 30 NGC4038-142 STIS/C ACCUM 52X0.2 G750M 6768 CR-SPLIT=3 1 35 M POS TARG 0, 8 CD ------------------------------------------------------------------------------------------------------------------------------------ 8170( 7) - 09/21/00 11:53 - [ 10] Visit: 07 Visit Priority: Visit Requirements: ORIENT 3.4D TO 4.4D SCHED 100% 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 ------------------------------------------------------------------------------------------------------------------------------------ 10 NGC4038-342 STIS/C ACQ F28X50L MIRROR ACQTYPE=POINT 1 25 S ONBOARD ACQ FOR 30 CD P Comments: Initial offset aquisition ------------------------------------------------------------------------------------------------------------------------------------ 30 NGC4038-FCT STIS/C ACCUM 52X0.2 G750M 6768 CR-SPLIT=3 1 32 M R CD ------------------------------------------------------------------------------------------------------------------------------------ 8170( 7) - 09/21/00 11:53 - [ 11] Visit: 08 Visit Priority: Visit Requirements: SCHED 100% SAME ORIENT AS 07 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 ------------------------------------------------------------------------------------------------------------------------------------ 60 NGC4038-FCT STIS/C ACCUM 50CCD G430M 3936 CR-SPLIT=3 1 40 M R CD ------------------------------------------------------------------------------------------------------------------------------------ 70 NGC4038-FCT STIS/C ACCUM 50CCD G430M 3936 CR-SPLIT=3 1 35 M R CD ------------------------------------------------------------------------------------------------------------------------------------ 80 NGC4038-FCT STIS/C ACCUM F28X50O MIRROR CR-SPLIT=2 1 4 M R CD II ------------------------------------------------------------------------------------------------------------------------------------ 8170( 7) - 09/21/00 11:53 - [ 12] Visit: 09 Visit Priority: Visit Requirements: ORIENT 9.3D TO 10.3D SCHED 100% 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 ------------------------------------------------------------------------------------------------------------------------------------ 10 NGC4038-342 STIS/C ACQ F28X50L MIRROR ACQTYPE=POINT 1 25 S ONBOARD ACQ FOR 30 CD P Comments: Initial offset aquisition ------------------------------------------------------------------------------------------------------------------------------------ 30 NGC4038-418 STIS/F ACCUM 52X2 G140L 1425 1 35 M UV-MAM A ------------------------------------------------------------------------------------------------------------------------------------ 8170( 7) - 09/21/00 11:53 - [ 13] Summary Form for Proposal 8170 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures F28X50LP 52X0.2 52X2 6X6 F28X50OII 50CCD ------------------------------------------------------------------------------------------------------------------------------------ Configurations STIS/CCD STIS/FUV-MAMA ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACQ ACQ/PEAK ACCUM ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters ACQTYPE=POINT CR-SPLIT=3 CR-SPLIT=2 ------------------------------------------------------------------------------------------------------------------------------------ Proposal Category GO ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements ORIENT 3.3D TO 4.3D SCHED 100% ONBOARD ACQ FOR 20-60 ONBOARD ACQ FOR 30-60 SAME ORIENT AS 01 SCHED 100% ONBOARD ACQ FOR 20 ONBOARD ACQ FOR 30, 70, 80, 100 ORIENT 53.8D TO 54.8D GS ACQ SCENARIO SINGLE ORIENT 337.7D TO 338.7D SCHED 100% ORIENT 81.2D TO 82.2D ONBOARD ACQ FOR 30, 40 POS TARG 0, 4 SAME ORIENT AS 05 ONBOARD ACQ FOR 30 POS TARG 0, 8 ORIENT 3.4D TO 4.4D SCHED 100% SCHED 100% SAME ORIENT AS 07 ORIENT 9.3D TO 10.3D SCHED 100% ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements MIRROR G140L G750M G430M ------------------------------------------------------------------------------------------------------------------------------------ Target Names NGC4038-405 NGC4038-289 NGC4038-TCTR NGC4038-STAR1 NGC4038-PCTR NGC4038-688 NGC4038-142 NGC4038-342 NGC4038-FCTR NGC4038-418 ------------------------------------------------------------------------------------------------------------------------------------ Wavelengths 1425 6768 3936 ------------------------------------------------------------------------------------------------------------------------------------