17157( 3) - 17-Nov-2022 14:33:20 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 17157 Version: 3 Check-in Time: 17-Nov-2022 14:33:20 STScI Edit Number: 0 Title Observing the Overlooked Double Lyman-alpha Transit of HD 189733 b to Break Mass Loss Rate Degeneracies ------------------------------------------------------------------------------------ Type Cycle GO 30 ------------------------------------------------------------------------------------ Investigators Contact? PI: Dr. R. O. Parke Loyd Eureka Scientific Inc. Y CoI: Dr. James Edward Owen Imperial College of London N CoI: Dr. Mark Raboin Swain Jet Propulsion Laboratory N CoI: Dr. Evgenya L. Shkolnik Arizona State University N CoI: Dr. Travis Stuart Barman University of Arizona N CoI: Dr. Ruth A. Murray-Clay University of California - Santa Cruz N CoI: Dr. David R. Ardila Jet Propulsion Laboratory N CoI: Jessica Spake California Institute of Technology N ------------------------------------------------------------------------------------ Abstract Lyman-alpha transits provide a window into atmospheric escape, a process that has observably shaped the exoplanet population. However, mass loss estimates from these observations are highly model dependent. A recently predicted feature of hot Jupiter transits could begin dismantling this model dependence: the delayed transit of the outflow tail. These transits have been hiding in plain sight, just slightly beyond the primary transits sampled by past Lyman-alpha transit observations. Critically, the plasma causing this delayed transit will have reached ionization equilibrium. Knowing the plasma's ionization state eliminates a confounding factor from the interpretation of the transit signal, enabling a stronger link between the the observations and the rate and efficiency of the planet's mass loss. This program will observe the delayed transit from the outflow tail of HD 189733 b, a planet with a well-established primary Lyman-alpha transit. The outcome will be an improved measurement of HD 189733 b's mass loss rate and efficiency, with broader implications for mass loss across the population of exoplanets. ------------------------------------------------------------------------------------ Observations Description ------------------------ We will conduct all observations with STIS G140M/1222, a configuration with extensive heritage that limits contamination by geocoronal Lya airglow. HD 189733 has already been extensively observed in Lya with this mode. To measure the tail transit, we will stagger two five-orbit visits. To guard against evolution in the out-of-transit Lya flux between these sets, we will conduct two-orbit pre-transit visits approximately 24 or 48~h (again, timing limited by SAA passages) ahead of each 5-orbit transit visit. ------------------------------------------------------------------------------------ 17157( 3) - 17-Nov-2022 14:33:20 - [ 2] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 HD-189733 STAR, EXTRA-SOLAR RA=20H00M43.7092S +/- J2000 V = 7.648 PLANET, EXTRA-SOLAR 0.009658503", DEC=+22D42'35.07" PLANETARY SYSTEM, K +/- 0.011860526" V-IV Reference Frame: ICRS Extended: NO Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 2016.0 -2.3186526169919797E-4 -0.25032333085817576 0.05056684941372739 ------------------------------------------------------------------------------------------------------------------------------------ 17157( 3) - 17-Nov-2022 14:33:20 - [ 3] Visit: 01 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 HD-189733 STIS/CCD ACQ F25ND3 MIRROR 1 1.0 S (1 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 HD-189733 STIS/CCD ACQ/PEA 0.2X0.05N MIRROR 1 1.0 S (1 K D S) ------------------------------------------------------------------------------------------------------------------------------------ 3 HD-189733 STIS/FUV TIME-TA 52X0.5 G140M 1222 BUFFER-TIME=4510, WAVECAL=NO 1 1500 S -MAMA G see below (1700 S) ------------------------------------------------------------------------------------------------------------------------------------ 4 WAVE STIS/FUV ACCUM 52X0.1 G140M 1222 1 DEF (0 S) -MAMA ------------------------------------------------------------------------------------------------------------------------------------ 5 HD-189733 STIS/FUV TIME-TA 52X0.5 G140M 1222 BUFFER-TIME=4510, WAVECAL=NO 1 2000 S -MAMA G see below (2689 S) ------------------------------------------------------------------------------------------------------------------------------------ 6 WAVE STIS/FUV ACCUM 52X0.1 G140M 1222 1 DEF (0 S) -MAMA ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ HD-189733 1 STIS/CCD ACQ F25ND3 MIRROR none none none none 1 N/A HD-189733 2 STIS/CCD ACQ/PEA 0.2X0.05 MIRROR none none none none 1 N/A K ND HD-189733 3 STIS/FUV TIME-TA 52X0.5 G140M 1222 none none none none 1 1700.0 S -MAMA G WAVE 4 STIS/FUV ACCUM 52X0.1 G140M 1222 none none none none 1 N/A -MAMA HD-189733 5 STIS/FUV TIME-TA 52X0.5 G140M 1222 none none none none 2 2689.0 S -MAMA G WAVE 6 STIS/FUV ACCUM 52X0.1 G140M 1222 none none none none 2 N/A -MAMA 17157( 3) - 17-Nov-2022 14:33:20 - [ 4] Visit: 02 Visit Requirements: AFTER 01 BY 0.5 D TO 1.5 D; Period 2.21857519 D AND ZERO-PHASE HJD2454403.677711 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 HD-189733 STIS/CCD ACQ F25ND3 MIRROR 1 1.0 S (1 PHASE S) 0.05634246725710477 TO 0.09390411209517462 ------------------------------------------------------------------------------------------------------------------------------------ 2 HD-189733 STIS/CCD ACQ/PEA 0.2X0.05N MIRROR 1 1.0 S (1 K D S) ------------------------------------------------------------------------------------------------------------------------------------ 3 HD-189733 STIS/FUV TIME-TA 52X0.5 G140M 1222 BUFFER-TIME=4510, WAVECAL=NO 1 1500 S -MAMA G see below (1700 S) ------------------------------------------------------------------------------------------------------------------------------------ 4 WAVE STIS/FUV ACCUM 52X0.1 G140M 1222 1 DEF (0 S) -MAMA ------------------------------------------------------------------------------------------------------------------------------------ 5 HD-189733 STIS/FUV TIME-TA 52X0.5 G140M 1222 BUFFER-TIME=4510, WAVECAL=NO 1 2000 S -MAMA G see below (2689 S) ------------------------------------------------------------------------------------------------------------------------------------ 6 WAVE STIS/FUV ACCUM 52X0.1 G140M 1222 1 DEF (0 S) -MAMA ------------------------------------------------------------------------------------------------------------------------------------ 7 HD-189733 STIS/FUV TIME-TA 52X0.5 G140M 1222 BUFFER-TIME=4510, WAVECAL=NO 1 2000 S -MAMA G see below (2689 S) ------------------------------------------------------------------------------------------------------------------------------------ 8 WAVE STIS/FUV ACCUM 52X0.1 G140M 1222 1 DEF (0 S) -MAMA ------------------------------------------------------------------------------------------------------------------------------------ 9 HD-189733 STIS/FUV TIME-TA 52X0.5 G140M 1222 BUFFER-TIME=4510, WAVECAL=NO 1 2000 S -MAMA G see below (2689 S) ------------------------------------------------------------------------------------------------------------------------------------ 10 WAVE STIS/FUV ACCUM 52X0.1 G140M 1222 1 DEF (0 S) -MAMA ------------------------------------------------------------------------------------------------------------------------------------ 11 HD-189733 STIS/FUV TIME-TA 52X0.5 G140M 1222 BUFFER-TIME=4510, WAVECAL=NO 1 2000 S -MAMA G see below (2689 S) ------------------------------------------------------------------------------------------------------------------------------------ 12 WAVE STIS/FUV ACCUM 52X0.1 G140M 1222 1 DEF (0 S) -MAMA ------------------------------------------------------------------------------------------------------------------------------------ 17157( 3) - 17-Nov-2022 14:33:20 - [ 5] 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 | ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ HD-189733 1 STIS/CCD ACQ F25ND3 MIRROR none none none none 1 N/A HD-189733 2 STIS/CCD ACQ/PEA 0.2X0.05 MIRROR none none none none 1 N/A K ND HD-189733 3 STIS/FUV TIME-TA 52X0.5 G140M 1222 none none none none 1 1700.0 S -MAMA G WAVE 4 STIS/FUV ACCUM 52X0.1 G140M 1222 none none none none 1 N/A -MAMA HD-189733 5 STIS/FUV TIME-TA 52X0.5 G140M 1222 none none none none 2 2689.0 S -MAMA G WAVE 6 STIS/FUV ACCUM 52X0.1 G140M 1222 none none none none 2 N/A -MAMA HD-189733 7 STIS/FUV TIME-TA 52X0.5 G140M 1222 none none none none 3 2689.0 S -MAMA G WAVE 8 STIS/FUV ACCUM 52X0.1 G140M 1222 none none none none 3 N/A -MAMA HD-189733 9 STIS/FUV TIME-TA 52X0.5 G140M 1222 none none none none 4 2689.0 S -MAMA G WAVE 10 STIS/FUV ACCUM 52X0.1 G140M 1222 none none none none 4 N/A -MAMA HD-189733 11 STIS/FUV TIME-TA 52X0.5 G140M 1222 none none none none 5 2689.0 S -MAMA G WAVE 12 STIS/FUV ACCUM 52X0.1 G140M 1222 none none none none 5 N/A -MAMA 17157( 3) - 17-Nov-2022 14:33:20 - [ 6] Visit: 03 Visit Requirements: AFTER 02 BY 0.5 D TO 1.5 D 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 HD-189733 STIS/CCD ACQ F25ND3 MIRROR 1 1.0 S (1 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 HD-189733 STIS/CCD ACQ/PEA 0.2X0.05N MIRROR 1 1.0 S (1 K D S) ------------------------------------------------------------------------------------------------------------------------------------ 3 HD-189733 STIS/FUV TIME-TA 52X0.5 G140M 1222 BUFFER-TIME=4510, WAVECAL=NO 1 1500 S -MAMA G see below (1700 S) ------------------------------------------------------------------------------------------------------------------------------------ 4 WAVE STIS/FUV ACCUM 52X0.1 G140M 1222 1 DEF (0 S) -MAMA ------------------------------------------------------------------------------------------------------------------------------------ 5 HD-189733 STIS/FUV TIME-TA 52X0.5 G140M 1222 BUFFER-TIME=4510, WAVECAL=NO 1 2000 S -MAMA G see below (2689 S) ------------------------------------------------------------------------------------------------------------------------------------ 6 WAVE STIS/FUV ACCUM 52X0.1 G140M 1222 1 DEF (0 S) -MAMA ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ HD-189733 1 STIS/CCD ACQ F25ND3 MIRROR none none none none 1 N/A HD-189733 2 STIS/CCD ACQ/PEA 0.2X0.05 MIRROR none none none none 1 N/A K ND HD-189733 3 STIS/FUV TIME-TA 52X0.5 G140M 1222 none none none none 1 1700.0 S -MAMA G WAVE 4 STIS/FUV ACCUM 52X0.1 G140M 1222 none none none none 1 N/A -MAMA HD-189733 5 STIS/FUV TIME-TA 52X0.5 G140M 1222 none none none none 2 2689.0 S -MAMA G WAVE 6 STIS/FUV ACCUM 52X0.1 G140M 1222 none none none none 2 N/A -MAMA 17157( 3) - 17-Nov-2022 14:33:20 - [ 7] Visit: 04 Visit Requirements: AFTER 03 BY 0.5 D TO 1.5 D; Period 2.21857519 D AND ZERO-PHASE HJD2454403.677711 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 HD-189733 STIS/CCD ACQ F25ND3 MIRROR 1 1.0 S (1 PHASE 0.9578219433707811 S) TO 0.995383588208851 ------------------------------------------------------------------------------------------------------------------------------------ 2 HD-189733 STIS/CCD ACQ/PEA 0.2X0.05N MIRROR 1 1.0 S (1 K D S) ------------------------------------------------------------------------------------------------------------------------------------ 3 HD-189733 STIS/FUV TIME-TA 52X0.5 G140M 1222 BUFFER-TIME=4510, WAVECAL=NO 1 1500 S -MAMA G see below (1700 S) ------------------------------------------------------------------------------------------------------------------------------------ 4 WAVE STIS/FUV ACCUM 52X0.1 G140M 1222 1 DEF (0 S) -MAMA ------------------------------------------------------------------------------------------------------------------------------------ 5 HD-189733 STIS/FUV TIME-TA 52X0.5 G140M 1222 BUFFER-TIME=4510, WAVECAL=NO 1 2000 S -MAMA G see below (2689 S) ------------------------------------------------------------------------------------------------------------------------------------ 6 WAVE STIS/FUV ACCUM 52X0.1 G140M 1222 1 DEF (0 S) -MAMA ------------------------------------------------------------------------------------------------------------------------------------ 7 HD-189733 STIS/FUV TIME-TA 52X0.5 G140M 1222 BUFFER-TIME=4510, WAVECAL=NO 1 2000 S -MAMA G see below (2689 S) ------------------------------------------------------------------------------------------------------------------------------------ 8 WAVE STIS/FUV ACCUM 52X0.1 G140M 1222 1 DEF (0 S) -MAMA ------------------------------------------------------------------------------------------------------------------------------------ 9 HD-189733 STIS/FUV TIME-TA 52X0.5 G140M 1222 BUFFER-TIME=4510, WAVECAL=NO 1 2000 S -MAMA G see below (2689 S) ------------------------------------------------------------------------------------------------------------------------------------ 10 WAVE STIS/FUV ACCUM 52X0.1 G140M 1222 1 DEF (0 S) -MAMA ------------------------------------------------------------------------------------------------------------------------------------ 11 HD-189733 STIS/FUV TIME-TA 52X0.5 G140M 1222 BUFFER-TIME=4510, WAVECAL=NO 1 2000 S -MAMA G see below (2689 S) ------------------------------------------------------------------------------------------------------------------------------------ 12 WAVE STIS/FUV ACCUM 52X0.1 G140M 1222 1 DEF (0 S) -MAMA ------------------------------------------------------------------------------------------------------------------------------------ 17157( 3) - 17-Nov-2022 14:33:20 - [ 8] 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 | ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ HD-189733 1 STIS/CCD ACQ F25ND3 MIRROR none none none none 1 N/A HD-189733 2 STIS/CCD ACQ/PEA 0.2X0.05 MIRROR none none none none 1 N/A K ND HD-189733 3 STIS/FUV TIME-TA 52X0.5 G140M 1222 none none none none 1 1700.0 S -MAMA G WAVE 4 STIS/FUV ACCUM 52X0.1 G140M 1222 none none none none 1 N/A -MAMA HD-189733 5 STIS/FUV TIME-TA 52X0.5 G140M 1222 none none none none 2 2689.0 S -MAMA G WAVE 6 STIS/FUV ACCUM 52X0.1 G140M 1222 none none none none 2 N/A -MAMA HD-189733 7 STIS/FUV TIME-TA 52X0.5 G140M 1222 none none none none 3 2689.0 S -MAMA G WAVE 8 STIS/FUV ACCUM 52X0.1 G140M 1222 none none none none 3 N/A -MAMA HD-189733 9 STIS/FUV TIME-TA 52X0.5 G140M 1222 none none none none 4 2689.0 S -MAMA G WAVE 10 STIS/FUV ACCUM 52X0.1 G140M 1222 none none none none 4 N/A -MAMA HD-189733 11 STIS/FUV TIME-TA 52X0.5 G140M 1222 none none none none 5 2689.0 S -MAMA G WAVE 12 STIS/FUV ACCUM 52X0.1 G140M 1222 none none none none 5 N/A -MAMA 17157( 3) - 17-Nov-2022 14:33:20 - [ 9] Summary Form for Proposal 17157 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures 0.2X0.05ND, 52X0.1, 52X0.5, F25ND3 ------------------------------------------------------------------------------------------------------------------------------------ Configurations STIS/CCD, STIS/FUV-MAMA ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACCUM, ACQ, ACQ/PEAK, TIME-TAG ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters BUFFER-TIME=4510, WAVECAL=NO ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements AFTER 01 BY 0.5 D TO 1.5 D, AFTER 02 BY 0.5 D TO 1.5 D, AFTER 03 BY 0.5 D TO 1.5 D, PHASE 0.05634246725710477 TO 0.09390411209517462, PHASE 0.9578219433707811 TO 0.995383588208851, Period 2.21857519 D AND ZERO-PHASE HJD2454403.677711 ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements G140M, MIRROR ------------------------------------------------------------------------------------------------------------------------------------ Target Names HD-189733, WAVE ------------------------------------------------------------------------------------------------------------------------------------