17912( 3) - 05-Feb-2025 14:39:53 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 17912 Version: 3 Check-in Time: 05-Feb-2025 14:39:53 STScI Edit Number: 0 Title Mapping Spatially Resolved Neutral H In Strongly Lensed Quasar Host Galaxies With Narrowband Lyman-alpha ------------------------------------------------------------------------------------ Type Cycle GO 32 ------------------------------------------------------------------------------------ Investigators Contact? PI: Dr. Matthew Bayliss University of Cincinnati Main Campus Y CoI: Prof. Keren Sharon University of Michigan N CoI: Dr. Haakon Dahle University of Oslo N CoI: Prof. Michael D. Gladders University of Chicago N CoI: Mr. Joshua Aaron Roberson University of Cincinnati Main Campus N CoI: Dr. Keunho J. Kim California Institute of Technology N CoI: Dr. Jane R. Rigby NASA Goddard Space Flight Center N CoI: Dr. Michael Florian University of Arizona N CoI: Dr. Gourav Khullar University of Washington N CoI: Dr. Kate Napier SLAC National Accelerator Laboratory N CoI: Erik Solhaug University of Chicago N CoI: Dr. Taylor Alexandra Hutchison NASA Goddard Space Flight Center N CoI: Dr. Brian Welch University of Maryland N CoI: M. Riley Owens University of Cincinnati Main Campus N CoI: Dr. T. Emil Rivera-Thorsen Stockholm University N CoI: Ms. Aleena Ebey University of Cincinnati Main Campus N CoI: Cole Panzer University of Cincinnati Main Campus N ------------------------------------------------------------------------------------ Abstract Large-separation (r>10") lensed quasars are extremely rare, but provide opportunities to zoom in maximally on quasar host galaxies. With magnification factors of ~20+, these systems enable studies that are impossible with quasars in the field, or even lower magnification galaxy-quasar lens systems. Lyman-alpha emission scatters resonant off of neutral hydrogen, and so its physical extent and distribution therefore provides a direct tracer of the neutral H gas content in galaxies. We propose to leverage the uniquely powerful combination of HST optical narrowband imaging (to isolate Lyman-alpha) and strong gravitational lensing to directly image the spatial distribution of neutral H on ~<100-200 pc physical scales within five quasar host galaxies at z=1.9-3.3. Archival HST+JWST broadband imaging constrains the spatially resolved stellar populations, providing maps of ionizing photon production from the stars so that we can robustly compare Lyman-alpha production against the Lyman-alpha narrowband imaging to quantity spatially resolved Lyman-alpha escape. The extreme magnifications allows for a clean separation of quasar vs host galaxy light to within ~100-200 parsecs of the central AGN engines. The resulting high resolution narrowband Lyman-alpha imaging data will unobtainable with any near term facility once HST ceases operations, and will hold substantial legacy value that will enhance future spatially resolved NIR spectroscopic studies of these quasar host galaxies. ------------------------------------------------------------------------------------ Observations Description ------------------------ 17912( 3) - 05-Feb-2025 14:39:53 - [ 2] This is a program to use the tunable ramp filters on ACS/WFC to obtai narrowband imaging of redshifted Lyman alpha from a sample of wide-separation strongly lensed quasars (WSLQs) and their host galaxies. Broadband HST imaging to measure the Lyman-alpha-free continuum emission is available in the archive for all targets. Each target is a strong lensing system with multiple highly magnified images of background quasars, with those multiple images separated by as much as 26" on the sky. The ACS ramp filters provide uniform narrowband throughput over regions of the sky approximately 40"x60" in size, which means that all of the lensed images of each of the WSLQ targets will easily fit within the ramp filter field of view. The observational setup for this program is fairly simple - we're taking a few long integrations on each field in the appropriate narrowband filter. Four of the five targets will be observed with half-orbit integrations, and one target (The highest redshift one) will be observed with 8 full-orbit integrations. The 8 full-orbit integrations should be sufficient to remove cosmic rays even from the very long exposures. ------------------------------------------------------------------------------------ 17912( 3) - 05-Feb-2025 14:39:53 - [ 3] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 SDSSJ1029+26 GALAXY, QUASAR RA=10H29M14.0600S, J2000 V = 19 +/- 0.5 quasar brightness is 23 DEC=+26D23'30.20" time-variable, z = 2.2 Reference Frame: ICRS Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 2000 0.0 0.0 0.0 ------------------------------------------------------------------------------------------------------------------------------------ 2 SDSSJ2222+27 GALAXY, QUASAR RA=22H22M8.5500S, J2000 V = 20.0 +/- 0.5 quasar brightness is 45 DEC=+27D45'38.20" time-variable, z = 2.82 Reference Frame: ICRS Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 2000 0.0 0.0 0.0 ------------------------------------------------------------------------------------------------------------------------------------ 3 SDSSJ0909+44 GALAXY, QUASAR RA=09H09M45.3400S, J2000 V = 21.4 +/- 0.5 quasar brightness is 49 DEC=+44D49'53.90" time-variable, z=2.788 Reference Frame: ICRS Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 2000 0.0 0.0 0.0 ------------------------------------------------------------------------------------------------------------------------------------ 4 COOLJ0335-19 GALAXY, QUASAR RA=03H35M4.0100S, J2000 V = 21.5 +/- 0.5 quasar brightness is 27 DEC=-19D27'51.20" time-variable, z=3.27 Reference Frame: ICRS Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 2000 0.0 0.0 0.0 ------------------------------------------------------------------------------------------------------------------------------------ 5 SDSSJ1326+48 GALAXY, QUASAR RA=13H25M59.7000S, J2000 V = 21.0 quasar brightness is 06 DEC=+48D06'46.50" time-variable, z=2.08 Reference Frame: ICRS Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 2000 0.0 0.0 0.0 ------------------------------------------------------------------------------------------------------------------------------------ 17912( 3) - 05-Feb-2025 14:39:53 - [ 4] Patterns ------------------------------------------------------------------------------------------------------------------------------------ Pattern_Number: 1 Primary_Pattern Secondary_Pattern Pattern_Type ACS-WFC-DITHER-BOX Pattern_Purpose DITHER Number_Of_Points 4 Point_Spacing 0.2637 Line_Spacing 0.1856 Coordinate_Frame POS-TARG Pattern_Orient 20.7 Angle_Between_Sides 69.02 Center_Pattern NO Pattern_Comments: This is a4-pt both dither pattern is intended to provide sub-pixel dithers to support PSF reconstruction in the ACS ramp filter data. ------------------------------------------------------------------------------------------------------------------------------------ Pattern_Number: 2 Primary_Pattern Secondary_Pattern Pattern_Type ACS-WFC-DITHER-LINE ACS-WFC-DITHER-LINE Pattern_Purpose DITHER DITHER Number_Of_Points 2 3 Point_Spacing 3.034 0.364 Line_Spacing Coordinate_Frame POS-TARG POS-TARG Pattern_Orient 85.29 47.23 Angle_Between_Sides Center_Pattern NO NO Pattern_Comments: This nested dither pattern is intended to provide sub-pixel dithers to support PSF reconstruction in the ACS ramp filter data - I think I've used these two patterns to provide one larger scale (3") ditherr with three small-scale (0.364") dithers at each larger position. All dithers are relativel small due to the Ramp Filters' small FoV. There should be six total dithered positions ------------------------------------------------------------------------------------------------------------------------------------ Pattern_Number: 5 Primary_Pattern Secondary_Pattern Pattern_Type ACS-WFC-DITHER-LINE ACS-WFC-DITHER-LINE Pattern_Purpose DITHER DITHER Number_Of_Points 2 5 Point_Spacing 3.034 0.364 Line_Spacing Coordinate_Frame POS-TARG POS-TARG Pattern_Orient 85.29 47.23 Angle_Between_Sides Center_Pattern NO NO Pattern_Comments: This nested dither pattern is intended to provide sub-pixel dithers to support PSF reconstruction in the ACS ramp filter data - I think I've used these two patterns to provide one larger scale (3") ditherr with five small-scale (0.364") dithers at each larger position. All dithers are relativel small due to the Ramp Filters' small FoV. There should be 10 total dithered positions ------------------------------------------------------------------------------------------------------------------------------------ 17912( 3) - 05-Feb-2025 14:39:53 - [ 5] Visit: 01 (SDSSJ1029 - FR388N) Visit Requirements: On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 SDSSJ1029+2 ACS/WFC ACCUM WFC1-MRAM FR388N 3890 FLASH=11 1 1200 S PATTERN 2 1 623 P see below (6911 S) ------------------------------------------------------------------------------------------------------------------------------------ Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ SDSSJ1029+2623 1 ACS/WFC ACCUM WFC1-MRA FR388N 3890 1 1 none none 1 1132.0 S MP SDSSJ1029+2623 1 ACS/WFC ACCUM WFC1-MRA FR388N 3890 1 2 none none 1 1131.0 S MP SDSSJ1029+2623 1 ACS/WFC ACCUM WFC1-MRA FR388N 3890 1 3 none none 2 1161.0 S MP SDSSJ1029+2623 1 ACS/WFC ACCUM WFC1-MRA FR388N 3890 2 1 none none 2 1161.0 S MP SDSSJ1029+2623 1 ACS/WFC ACCUM WFC1-MRA FR388N 3890 2 2 none none 3 1163.0 S MP SDSSJ1029+2623 1 ACS/WFC ACCUM WFC1-MRA FR388N 3890 2 3 none none 3 1163.0 S MP 17912( 3) - 05-Feb-2025 14:39:53 - [ 6] Visit: 02 (SDSSJ2222 - FR462N) Visit Requirements: On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 SDSSJ2222+2 ACS/WFC ACCUM WFC2-ORAM FR462N 4640 FLASH=9 1 1100 S PATTERN 5 1 745 P see below (11556 S) ------------------------------------------------------------------------------------------------------------------------------------ Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ SDSSJ2222+2745 1 ACS/WFC ACCUM WFC2-ORA FR462N 4640 1 1 none none 1 1127.0 S MP SDSSJ2222+2745 1 ACS/WFC ACCUM WFC2-ORA FR462N 4640 1 2 none none 1 1127.0 S MP SDSSJ2222+2745 1 ACS/WFC ACCUM WFC2-ORA FR462N 4640 1 3 none none 2 1163.0 S MP SDSSJ2222+2745 1 ACS/WFC ACCUM WFC2-ORA FR462N 4640 1 4 none none 2 1163.0 S MP SDSSJ2222+2745 1 ACS/WFC ACCUM WFC2-ORA FR462N 4640 1 5 none none 3 1162.0 S MP SDSSJ2222+2745 1 ACS/WFC ACCUM WFC2-ORA FR462N 4640 2 1 none none 3 1162.0 S MP SDSSJ2222+2745 1 ACS/WFC ACCUM WFC2-ORA FR462N 4640 2 2 none none 4 1163.0 S MP SDSSJ2222+2745 1 ACS/WFC ACCUM WFC2-ORA FR462N 4640 2 3 none none 4 1163.0 S MP SDSSJ2222+2745 1 ACS/WFC ACCUM WFC2-ORA FR462N 4640 2 4 none none 5 1163.0 S MP SDSSJ2222+2745 1 ACS/WFC ACCUM WFC2-ORA FR462N 4640 2 5 none none 5 1163.0 S MP 17912( 3) - 05-Feb-2025 14:39:53 - [ 7] Visit: 03 (SDSSJ0909 - FR462N) Visit Requirements: On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 SDSSJ0909+4 ACS/WFC ACCUM WFC2-ORAM FR462N 4600 FLASH=9 1 1100 S PATTERN 5 1 449 P see below (11646 S) ------------------------------------------------------------------------------------------------------------------------------------ Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ SDSSJ0909+4449 1 ACS/WFC ACCUM WFC2-ORA FR462N 4600 1 1 none none 1 1140.0 S MP SDSSJ0909+4449 1 ACS/WFC ACCUM WFC2-ORA FR462N 4600 1 2 none none 1 1140.0 S MP SDSSJ0909+4449 1 ACS/WFC ACCUM WFC2-ORA FR462N 4600 1 3 none none 2 1171.0 S MP SDSSJ0909+4449 1 ACS/WFC ACCUM WFC2-ORA FR462N 4600 1 4 none none 2 1171.0 S MP SDSSJ0909+4449 1 ACS/WFC ACCUM WFC2-ORA FR462N 4600 1 5 none none 3 1170.0 S MP SDSSJ0909+4449 1 ACS/WFC ACCUM WFC2-ORA FR462N 4600 2 1 none none 3 1170.0 S MP SDSSJ0909+4449 1 ACS/WFC ACCUM WFC2-ORA FR462N 4600 2 2 none none 4 1171.0 S MP SDSSJ0909+4449 1 ACS/WFC ACCUM WFC2-ORA FR462N 4600 2 3 none none 4 1171.0 S MP SDSSJ0909+4449 1 ACS/WFC ACCUM WFC2-ORA FR462N 4600 2 4 none none 5 1171.0 S MP SDSSJ0909+4449 1 ACS/WFC ACCUM WFC2-ORA FR462N 4600 2 5 none none 5 1171.0 S MP 17912( 3) - 05-Feb-2025 14:39:53 - [ 8] Visit: 04 (COOLJ0335 - FR505N Visit A) Visit Requirements: On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 COOLJ0335-1 ACS/WFC ACCUM WFC1-MRAM FR505N 5190 1 2200 S PATTERN 1 1 927 P see below (9878 S) ------------------------------------------------------------------------------------------------------------------------------------ Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ COOLJ0335-1927 1 ACS/WFC ACCUM WFC1-MRA FR505N 5190 1 none none none 1 2423.0 S MP COOLJ0335-1927 1 ACS/WFC ACCUM WFC1-MRA FR505N 5190 2 none none none 2 2465.0 S MP COOLJ0335-1927 1 ACS/WFC ACCUM WFC1-MRA FR505N 5190 3 none none none 3 2485.0 S MP COOLJ0335-1927 1 ACS/WFC ACCUM WFC1-MRA FR505N 5190 4 none none none 4 2505.0 S MP 17912( 3) - 05-Feb-2025 14:39:53 - [ 9] Visit: 05 (COOLJ0335 - FR505N Visit B) Visit Requirements: On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 COOLJ0335-1 ACS/WFC ACCUM WFC1-MRAM FR505N 5190 1 2200 S PATTERN 1 1 927 P see below (9878 S) ------------------------------------------------------------------------------------------------------------------------------------ Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ COOLJ0335-1927 1 ACS/WFC ACCUM WFC1-MRA FR505N 5190 1 none none none 1 2403.0 S MP COOLJ0335-1927 1 ACS/WFC ACCUM WFC1-MRA FR505N 5190 2 none none none 2 2485.0 S MP COOLJ0335-1927 1 ACS/WFC ACCUM WFC1-MRA FR505N 5190 3 none none none 3 2485.0 S MP COOLJ0335-1927 1 ACS/WFC ACCUM WFC1-MRA FR505N 5190 4 none none none 4 2505.0 S MP 17912( 3) - 05-Feb-2025 14:39:53 - [ 10] Visit: 06 (SDSSJ1326 - FR388N) Visit Requirements: On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 SDSSJ1326+4 ACS/WFC ACCUM WFC1-MRAM FR388N 3740 FLASH=11 1 1100 S PATTERN 2 1 806 P see below (6992 S) ------------------------------------------------------------------------------------------------------------------------------------ Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ SDSSJ1326+4806 1 ACS/WFC ACCUM WFC1-MRA FR388N 3740 1 1 none none 1 1142.0 S MP SDSSJ1326+4806 1 ACS/WFC ACCUM WFC1-MRA FR388N 3740 1 2 none none 1 1142.0 S MP SDSSJ1326+4806 1 ACS/WFC ACCUM WFC1-MRA FR388N 3740 1 3 none none 2 1176.0 S MP SDSSJ1326+4806 1 ACS/WFC ACCUM WFC1-MRA FR388N 3740 2 1 none none 2 1176.0 S MP SDSSJ1326+4806 1 ACS/WFC ACCUM WFC1-MRA FR388N 3740 2 2 none none 3 1178.0 S MP SDSSJ1326+4806 1 ACS/WFC ACCUM WFC1-MRA FR388N 3740 2 3 none none 3 1178.0 S MP 17912( 3) - 05-Feb-2025 14:39:53 - [ 11] Summary Form for Proposal 17912 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures WFC1-MRAMP, WFC2-ORAMP ------------------------------------------------------------------------------------------------------------------------------------ Configurations ACS/WFC ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACCUM ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters FLASH=11, FLASH=9 ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements PATTERN 1 1, PATTERN 2 1, PATTERN 5 1 ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements FR388N, FR462N, FR505N ------------------------------------------------------------------------------------------------------------------------------------ Target Names COOLJ0335-1927, SDSSJ0909+4449, SDSSJ1029+2623, SDSSJ1326+4806, SDSSJ2222+2745 ------------------------------------------------------------------------------------------------------------------------------------