6300( 8) - 10/10/96 09:30 - [ 0] PROPOSAL FOR HUBBLE SPACE TELESCOPE OBSERVATIONS ST ScI Use Only ID: 6300 Version: 8 Check-in Date: 10-Oct-1996 09:25:32 1.Proposal Title: The Nature of the Central UV Source in M31 ------------------------------------------------------------------------------------ 2. Scientific Category 3. Proposal For 4. Cycle AGN GTO/FOS 5 ------------------------------------------------------------------------------------ 5. Investigators Contact? PI: Holland Ford THE JOHNS HOPKINS UNIVERSITY CoI: Zlatan Tsvetanov Johns Hopkins University Y CoI: Gerard Kriss Johns Hopkins University N CoI: Richard Harms RCH Scientific N CoI: Bruce Margon University of Washington N CoI: Margaret Burbidge University of California San Diego N CoI: Roger Angel University of Arizona N CoI: Edward Beaver University of California San Diego N CoI: Frank Bartko University of Colorado N CoI: Ralph Bohlin Space Telescope Science Institute N CoI: Arthur Davidsen Johns Hopkins University N ------------------------------------------------------------------------------------ 6. Abstract The FOS will be used with small apertures to map the stellar velocity dispersion and rotation in a grid covering the central 0.5" of NGC224 (M31). The velocity disperions and rotation curves will be used to model the nuclear dynamics and to measure the nuclear M/L. ------------------------------------------------------------------------------------ Observations Description ------------------------ FOS observations of NGC 224 (M31) will consist of spectra at several locations arround the fainter peak and along the major axis (position angle 45 deg) using grating G570H and the 0.1" (0.086") aperture. These new major axis positions will effectively resolve one or two of the previously taken positions with the 0.3" aprture. The target acquisition is particularly thorough to secure the required accuracy of approximately 0.015". It consists of a Binary Serach on a nearby star successfully used in our previous onservations and a subsequent four stage Peak-Up on a 18 mag star about 11" from the M31 nucleus. The subsequent analysis will include a Fourier quotient measurements of bouth the velocity and velocity dispersion. For a template we will use the very high signal-to-noise ratio spectra of the K star F193 that were obtained as part of our previous proposals. Real Time Justification ----------------------- None. Calibration Justification ------------------------- Additional Comments ------------------- ------------------------------------------------------------------------------------ Data Distribution Media: 8MM Blocking Factor: 10 Ship To: PI_Address Ship Via: UPS Email: , ------------------------------------------------------------------------------------ 6300( 8) - 10/10/96 09:30 - [ 1] TARGET LIST a) Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 NGC224 GALAXY RA=00H 42M 44.3303S +/- 0.3", 2000 V=-300 F(5470)=4.4e-16 DEC=+41D 16' 08.972" +/- 0.3", E(B-V) = 0.11 PLATE-ID=01JV Comments: Galaxy center 2 NGC224- STAR RA-OFF=4.4547S +/- 0.0018S, DEC- 2000 V=-300 V = 14.58+/-0.02 OFFSET OFF=-55.392" +/- 0.02", FROM 1 B-V = 0.93 Comments: Star for initial Binary Search 3 NGC224- STAR RA-OFF=-0.2787S +/- 0.0018S, DEC 2000 V=-300 F(5470)=2.3e-16 OFFSET-2 -OFF=10.668" +/- 0.02", FROM 1 Comments: Nearby star (11") for precise cetering 4 NGC224-NE1 GALAXY R=0.25", PA=45D, FROM 1 2000 V=-300 F(5470)=4.8e-16 Comments: Bright peak 5 NGC224-SW1 GALAXY R=0.25", PA=225D, FROM 1 2000 V=-300 F(5470)=4.3e-16 Comments: Faint peak (B.H.) 6 NGC224-SW1-1 GALAXY R=0.164", PA=225D, FROM 1 2000 V=-300 F(5470)=4.3e-16 7 NGC224-SW1-2 GALAXY R=0.336", PA=225D, FROM 1 2000 V=-300 F(5470)=4.3e-16 8 NGC224-SW1-3 GALAXY R=0.422", PA=225D, FROM 1 2000 V=-300 F(5470)=4.3e-16 6300( 8) - 10/10/96 09:30 - [ 2] Visit: 01 Visit Requirements: SCHED 50% 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 NGC224-OFFS FOS/RD ACQ/BIN 4.3 MIRROR 1 6.0 S ONBOARD ACQ FOR 20 ET ARY ------------------------------------------------------------------------------------------------------------------------------------ 20 NGC224-OFFS FOS/RD ACQ/PEA 0.3 MIRROR SEARCH-SIZE-X=5,SEARCH-SIZE-Y=5, 1 11 S ONBOARD ACQ FOR 30 ET-2 K SCAN-STEP-X=0.12,SCAN-STEP-Y=0.12 ------------------------------------------------------------------------------------------------------------------------------------ 30 NGC224-OFFS FOS/RD ACQ/PEA 0.3 MIRROR SEARCH-SIZE-X=3,SEARCH-SIZE-Y=3, 1 11 S ONBOARD ACQ FOR 40 ET-2 K SCAN-STEP-X=0.06,SCAN-STEP-Y=0.06 ------------------------------------------------------------------------------------------------------------------------------------ 40 NGC224-OFFS FOS/RD ACQ/PEA 0.1-PAI MIRROR SEARCH-SIZE-X=5,SEARCH-SIZE-Y=5, 1 28 S ONBOARD ACQ FOR 50 ET-2 K R-A SCAN-STEP-X=0.04,SCAN-STEP-Y=0.04 ------------------------------------------------------------------------------------------------------------------------------------ 50 NGC224-OFFS FOS/RD ACQ/PEA 0.1-PAI MIRROR SEARCH-SIZE-X=3,SEARCH-SIZE-Y=3, 1 28 S ONBOARD ACQ FOR 60,70,80, ET-2 K R-A SCAN-STEP-X=0.02,SCAN-STEP-Y=0.02 90,100,110,120,130,140, 150,160,170 ------------------------------------------------------------------------------------------------------------------------------------ 60 NGC224-SW1 FOS/RD ACCUM 0.1-PAI G570H STEP-PATT=SINGLE 1 2380 S R-A ------------------------------------------------------------------------------------------------------------------------------------ 65 NGC224-SW1 WFPC2 IMAGE WFALL-F F439W CR-SPLIT=NO 1 2800 S PAR WITH 60 IX ------------------------------------------------------------------------------------------------------------------------------------ 70 WAVE FOS/RD ACCUM 0.1-PAI G570H STEP-PATT=SINGLE 1 DEF R-A ------------------------------------------------------------------------------------------------------------------------------------ 80 NGC224-SW1 FOS/RD ACCUM 0.1-PAI G570H STEP-PATT=SINGLE 1 2420 S R-A ------------------------------------------------------------------------------------------------------------------------------------ 85 NGC224-SW1 WFPC2 IMAGE WFALL-F F439W CR-SPLIT=NO 1 2800 S PAR WITH 80 IX ------------------------------------------------------------------------------------------------------------------------------------ 90 WAVE FOS/RD ACCUM 0.1-PAI G570H STEP-PATT=SINGLE 1 DEF R-A ------------------------------------------------------------------------------------------------------------------------------------ 100 NGC224-SW1- FOS/RD ACCUM 0.1-PAI G570H STEP-PATT=SINGLE 1 2420 S 1 R-A ------------------------------------------------------------------------------------------------------------------------------------ 105 NGC224-SW1 WFPC2 IMAGE WFALL-F F439W CR-SPLIT=NO 1 2800 S PAR WITH 100 IX ------------------------------------------------------------------------------------------------------------------------------------ 110 WAVE FOS/RD ACCUM 0.1-PAI G570H STEP-PATT=SINGLE 1 DEF R-A ------------------------------------------------------------------------------------------------------------------------------------ 120 NGC224-SW1- FOS/RD ACCUM 0.1-PAI G570H STEP-PATT=SINGLE 1 2420 S 1 R-A ------------------------------------------------------------------------------------------------------------------------------------ 6300( 8) - 10/10/96 09:30 - [ 3] Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 125 NGC224-SW1 WFPC2 IMAGE WFALL-F F439W CR-SPLIT=NO 1 2800 S PAR WITH 120 IX ------------------------------------------------------------------------------------------------------------------------------------ 130 WAVE FOS/RD ACCUM 0.1-PAI G570H STEP-PATT=SINGLE 1 DEF R-A ------------------------------------------------------------------------------------------------------------------------------------ 140 NGC224-SW1- FOS/RD ACCUM 0.1-PAI G570H STEP-PATT=SINGLE 1 2400 S 2 R-A ------------------------------------------------------------------------------------------------------------------------------------ 145 NGC224-SW1 WFPC2 IMAGE WFALL-F F439W CR-SPLIT=NO 1 2800 S PAR WITH 140 IX ------------------------------------------------------------------------------------------------------------------------------------ 150 WAVE FOS/RD ACCUM 0.1-PAI G570H STEP-PATT=SINGLE 1 DEF R-A ------------------------------------------------------------------------------------------------------------------------------------ 160 NGC224-SW1- FOS/RD ACCUM 0.1-PAI G570H STEP-PATT=SINGLE 1 2400 S 2 R-A ------------------------------------------------------------------------------------------------------------------------------------ 165 NGC224-SW1 WFPC2 IMAGE WFALL-F F439W CR-SPLIT=NO 1 2800 S PAR WITH 160 IX ------------------------------------------------------------------------------------------------------------------------------------ 170 WAVE FOS/RD ACCUM 0.1-PAI G570H STEP-PATT=SINGLE 1 DEF R-A ------------------------------------------------------------------------------------------------------------------------------------ 6300( 8) - 10/10/96 09:30 - [ 4] Visit: 02 Visit Requirements: SCHED 50% SAME ORIENT AS 1 On Hold Comments: Additional Comments: 9-th orbit can be partial Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 10 NGC224-OFFS FOS/RD ACQ/BIN 4.3 MIRROR 1 6.0 S ONBOARD ACQ FOR 20 ET ARY ------------------------------------------------------------------------------------------------------------------------------------ 20 NGC224-OFFS FOS/RD ACQ/PEA 0.3 MIRROR SEARCH-SIZE-X=5,SEARCH-SIZE-Y=5, 1 11 S ONBOARD ACQ FOR 30 ET-2 K SCAN-STEP-X=0.12,SCAN-STEP-Y=0.12 ------------------------------------------------------------------------------------------------------------------------------------ 30 NGC224-OFFS FOS/RD ACQ/PEA 0.3 MIRROR SEARCH-SIZE-X=3,SEARCH-SIZE-Y=3, 1 11 S ONBOARD ACQ FOR 40 ET-2 K SCAN-STEP-X=0.06,SCAN-STEP-Y=0.06 ------------------------------------------------------------------------------------------------------------------------------------ 40 NGC224-OFFS FOS/RD ACQ/PEA 0.1-PAI MIRROR SEARCH-SIZE-X=5,SEARCH-SIZE-Y=5, 1 28 S ONBOARD ACQ FOR 50 ET-2 K R-A SCAN-STEP-X=0.04,SCAN-STEP-Y=0.04 ------------------------------------------------------------------------------------------------------------------------------------ 50 NGC224-OFFS FOS/RD ACQ/PEA 0.1-PAI MIRROR SEARCH-SIZE-X=3,SEARCH-SIZE-Y=3, 1 28 S ONBOARD ACQ FOR 60,70,80, ET-2 K R-A SCAN-STEP-X=0.02,SCAN-STEP-Y=0.02 90,100,110,120,130,140, 150,160,170,180,190 ------------------------------------------------------------------------------------------------------------------------------------ 60 NGC224-SW1 FOS/RD ACCUM 0.1-PAI G570H STEP-PATT=SINGLE 1 2380 S R-A ------------------------------------------------------------------------------------------------------------------------------------ 65 NGC224-SW1 WFPC2 IMAGE WFALL-F F555W CR-SPLIT=NO 1 2800 S PAR WITH 60 IX ------------------------------------------------------------------------------------------------------------------------------------ 70 WAVE FOS/RD ACCUM 0.1-PAI G570H STEP-PATT=SINGLE 1 DEF R-A ------------------------------------------------------------------------------------------------------------------------------------ 80 NGC224-SW1 FOS/RD ACCUM 0.1-PAI G570H STEP-PATT=SINGLE 1 2420 S R-A ------------------------------------------------------------------------------------------------------------------------------------ 85 NGC224-SW1 WFPC2 IMAGE WFALL-F F814W CR-SPLIT=NO 1 2800 S PAR WITH 80 IX ------------------------------------------------------------------------------------------------------------------------------------ 90 WAVE FOS/RD ACCUM 0.1-PAI G570H STEP-PATT=SINGLE 1 DEF R-A ------------------------------------------------------------------------------------------------------------------------------------ 100 NGC224-SW1- FOS/RD ACCUM 0.1-PAI G570H STEP-PATT=SINGLE 1 2420 S 2 R-A ------------------------------------------------------------------------------------------------------------------------------------ 105 NGC224-SW1 WFPC2 IMAGE WFALL-F F555W CR-SPLIT=NO 1 2800 S PAR WITH 100 IX ------------------------------------------------------------------------------------------------------------------------------------ 110 WAVE FOS/RD ACCUM 0.1-PAI G570H STEP-PATT=SINGLE 1 DEF R-A ------------------------------------------------------------------------------------------------------------------------------------ 120 NGC224-SW1- FOS/RD ACCUM 0.1-PAI G570H STEP-PATT=SINGLE 1 2420 S 2 R-A ------------------------------------------------------------------------------------------------------------------------------------ 6300( 8) - 10/10/96 09:30 - [ 5] Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 125 NGC224-SW1 WFPC2 IMAGE WFALL-F F814W CR-SPLIT=NO 1 2800 S PAR WITH 120 IX ------------------------------------------------------------------------------------------------------------------------------------ 130 WAVE FOS/RD ACCUM 0.1-PAI G570H STEP-PATT=SINGLE 1 DEF R-A ------------------------------------------------------------------------------------------------------------------------------------ 140 NGC224-SW1- FOS/RD ACCUM 0.1-PAI G570H STEP-PATT=SINGLE 1 2420 S 3 R-A ------------------------------------------------------------------------------------------------------------------------------------ 145 NGC224-SW1 WFPC2 IMAGE WFALL-F F555W CR-SPLIT=NO 1 2800 S PAR WITH 140 IX ------------------------------------------------------------------------------------------------------------------------------------ 150 WAVE FOS/RD ACCUM 0.1-PAI G570H STEP-PATT=SINGLE 1 DEF R-A ------------------------------------------------------------------------------------------------------------------------------------ 160 NGC224-SW1- FOS/RD ACCUM 0.1-PAI G570H STEP-PATT=SINGLE 1 2420 S 3 R-A ------------------------------------------------------------------------------------------------------------------------------------ 165 NGC224-SW1 WFPC2 IMAGE WFALL-F F814W CR-SPLIT=NO 1 2800 S PAR WITH 160 IX ------------------------------------------------------------------------------------------------------------------------------------ 170 WAVE FOS/RD ACCUM 0.1-PAI G570H STEP-PATT=SINGLE 1 DEF R-A ------------------------------------------------------------------------------------------------------------------------------------ 180 NGC224-NE1 FOS/RD ACQ 4.3 MIRROR 1 64 S Comments: Make a picture of nucleus ------------------------------------------------------------------------------------------------------------------------------------ 190 NGC224-NE1 FOS/RD ACCUM 0.3 G570H STEP-PATT=SINGLE 1 1800 S Comments: Brighter Peak spectrum for comparison ------------------------------------------------------------------------------------------------------------------------------------ 195 NGC224-SW1 WFPC2 IMAGE WFALL-F F336W CR-SPLIT=NO 1 2200 S PAR WITH 190 IX ------------------------------------------------------------------------------------------------------------------------------------ 6300( 8) - 10/10/96 09:30 - [ 6] Summary Form for Proposal 6300 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Configurations FOS/RD WFPC2 ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACQ/BINARY ACQ/PEAK ACCUM IMAGE ACQ ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters SEARCH-SIZE-X=5 SEARCH-SIZE-Y=5 SCAN-STEP-X=0.12 SCAN-STEP-Y=0.12 SCAN-STEP-Y=0.06 SCAN-STEP-Y=0.04 SCAN-STEP-Y=0.02 STEP-PATT=SINGLE CR-SPLIT=NO SCAN-STEP-X=0.06 SCAN-STEP-X=0.04 SCAN-STEP-X=0.02 ------------------------------------------------------------------------------------------------------------------------------------ Proposal Category GTO/FOS ------------------------------------------------------------------------------------------------------------------------------------ Scientific Category AGN ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements SCHED 50% ONBOARD ACQ FOR 20 ONBOARD ACQ FOR 30 ONBOARD ACQ FOR 40 ONBOARD ACQ FOR 50 ONBOARD ACQ FOR 60,70,80,90,100,110,120,130,140,150,160,170 PAR WITH 60 PAR WITH 80 PAR WITH 100 PAR WITH 120 PAR WITH 140 PAR WITH 160 SCHED 50% SAME ORIENT AS 1 ONBOARD ACQ FOR 60,70,80,90,100,110,120,130,140,150,160,170,180,190 PAR WITH 190 ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements MIRROR G570H F439W F555W F814W F336W ------------------------------------------------------------------------------------------------------------------------------------ Target Names NGC224-OFFSET NGC224-OFFSET-2 NGC224-SW1 WAVE NGC224-SW1-1 NGC224-SW1-2 NGC224-SW1-3 NGC224-NE1 ------------------------------------------------------------------------------------------------------------------------------------