17171( 6) - 11-Jun-2024 22:30:03 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 17171 Version: 6 Check-in Time: 11-Jun-2024 22:30:03 STScI Edit Number: 2 Title Uncovering the Lyman continuum SED of star-forming galaxies from ~550 to 912 Angstroem ------------------------------------------------------------------------------------ Type Cycle GO 30 ------------------------------------------------------------------------------------ Investigators Contact? PI: Prof. Daniel Schaerer University of Geneva, Department of Y Astronomy CoI: Dr. Yuri I. Izotov Ukrainian National Academy of Sciences, N BITP CoI: Dr. Natalia G. Guseva Ukrainian National Academy of Sciences, N BITP CoI: Prof. Anne Verhamme University of Geneva, Department of N Astronomy CoI: Dr. Gabor Worseck Private Company N CoI: Prof. John Chisholm University of Texas at Austin N CoI: Dr. Charlotte Simmonds University of Cambridge N ------------------------------------------------------------------------------------ Abstract The Lyman continuum (LyC = hydrogen-ionizing radiation at wavelengths < 912 Ang) of galaxies plays a fundamental role in determining the physical and observational properties of the ISM and IGM, including cosmic reionization. Yet it is basically inaccessible to direct observations, and one therefore heavily relies on theoretical, yet untested predictions from synthesis models. Furthermore the ionizing spectra differ significantly between different models, with important implications on widely used emission line diagnostics and other observables. We here propose to observe for the first time the shape of the ionizing continuum of star-forming galaxies over a wide spectral range, from ~550 to 912 Angstroem. This can be achieved with COS by targeting LyC emitters at z~0.8-1. The observations will measure stellar and nebular features in the LyC, and thus provide direct constraints for stellar population models in this generally inaccessible part of the spectrum. The proposed observations will provide unique insight on the hardness of the ionizing spectra of star-forming galaxies, with numerous possible implications on our understanding of the emission line properties of distant galaxies, sources of cosmic reionization, emission line diagnostics, and related topics. ------------------------------------------------------------------------------------ Observations Description ------------------------ We have verified that our targets are sufficiently faint to satisfy safety conditions for observing with the COS and that there are no sources brighter than the COS safety limits in proximity within circle of 43'' diameter) of our targets. We will obtain NUV acquisition images of the targets with the standard Mirror A and the ACQ/IMAGE mode, with exposures of ~ 300 seconds to reach a S/N~20 within a 9x9 pixel box centered on the brightest part of the galaxy. We have used the GALEX NUV magnitudes to estimate the S/N. The angular galaxy 17171( 6) - 11-Jun-2024 22:30:03 - [ 2] radius is chosen to be 0.2'', inside which most of the galaxy light is concentrated. The total time for acquisition is 0.3 orbit. The acquisition image will allow us to analyse the UV morphology of the sources. The COS will be used in combination with the low-resolution G140L grating centered at 800A to measure the LyC. The required number of orbits for each object is calculated so as to detect the LyC at the level above 1sigma with a 100-pixel binning of the data at the observed wavelength ~ 900x(1+z)A. For the LyC flux we have assumed the mimimum value corresponding to an escape fraction of 5 %, and the intrinsic LyC flux density that is obtained from the relation I(Hbeta)/I(912) ~ 9A, where I(Hbeta) is the extinction-corrected flux of the Hbeta emission line. For intrinsic fluxes at shorter wavelengths we have taken a range of predictions from Starburst99 and BPASS models. We have also done simulations of the expected observations using synthetic spectra obtained from SED fits to the available photometry and SDSS spectra and using Starburst99 and BPASS models. These confirm that a sufficient S/N can be obtained over the wavelength range of interest. The extinction of the targets, measured from the Balmer decrement is very low (E(B-V) ~ 0 - 0.07). All the available data (including combination of COS + SDSS spectra, GALEX photometry and SED) will be used to model and correct for selective extinction. It is difficult to foresee the selective extinction in this spectral range. For each target 0.3 orbit is needed for acquisition, and 4.7 orbits for the spectrum with the low-resolution G140L grating, i.e. 5 orbits in total. All four FP-POS are used in consecutive orbits of a visit. We therefore request a total of 25 orbits for 5 objects. ------------------------------------------------------------------------------------ 17171( 6) - 11-Jun-2024 22:30:03 - [ 3] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 J0256+0122 GALAXY, DWARF COMPACT, RA=02H56M58.2600S +/- 0.2", J2000 Z = V = 20.98 +/- 0.10 NUV=21.57+/-0.07, STARBURST DEC=+01D22'45.80" +/- 0.2" 0.88662 f(912*1.81474=1717A)=3.70e-18 erg s-1 cm-2 A-1 - 5% of the intrinsic LyC flux Reference Frame: ICRS Extended: NO ------------------------------------------------------------------------------------------------------------------------------------ 2 J0815+2942 GALAXY, DWARF COMPACT, RA=08H15M53.7200S +/- 0.2", J2000 Z = V = 21.33 +/- 0.10 NUV=21.33+/-0.12, STARBURST DEC=+29D42'29.70" +/- 0.2" 0.91414 f(912*1.91414=1746A)=3.2e-18 erg s-1 cm-2 A-1- 5% of the intrinsic LyC flux Reference Frame: ICRS Extended: NO ------------------------------------------------------------------------------------------------------------------------------------ 3 J0908+4626 GALAXY, DWARF COMPACT, RA=09H08M25.7500S +/- 0.2", J2000 Z = V = 21.41 +/- 0.10 NUV=21.61+-0.11, STARBURST DEC=+46D26'50.46" +/- 0.2" 0.81474 f(912*1.81474=1655A)=3.10e-18 erg s-1 cm-2 A-1 - 5% of the intrinsic LyC flux Reference Frame: ICRS Extended: NO ------------------------------------------------------------------------------------------------------------------------------------ 4 J0955+3935 GALAXY, DWARF COMPACT, RA=09H55M28.3800S +/- 0.2", J2000 Z = V = 21.41 +/- 0.10 NUV=21.11+/-0.31, STARBURST DEC=+39D35'53.30" +/- 0.2" 0.82936 f(912*1.82936=1668A)=4.5e-18 erg s-1 cm-2 A-1 - 5% of the intrinsic LyC flux Reference Frame: ICRS Extended: NO ------------------------------------------------------------------------------------------------------------------------------------ 5 J1021+0436 GALAXY, DWARF COMPACT, RA=10H21M40.5500S +/- 0.2", J2000 Z = V = 20.63 +/- 0.10 NUV=20.75+/-0.05, STARBURST DEC=+04D36'47.90" +/- 0.2" 1.00509 f(912*2.00509=1828A)=6.6e-18 erg s-1 cm-2 A-1 - 5% of the intrinsic LyC flux Reference Frame: ICRS Extended: NO ------------------------------------------------------------------------------------------------------------------------------------ 55 J1021+0436-R GALAXY, DWARF COMPACT, RA=10H21M40.5500S +/- 0.2", J2000 Z = V = 20.63 +/- 0.10 NUV=20.75+/-0.05, EPEAT STARBURST DEC=+04D36'47.90" +/- 0.2" 1.00509 f(912*2.00509=1828A)=6.6e-18 erg s-1 cm-2 A-1 - 5% of the intrinsic LyC flux Reference Frame: ICRS Extended: NO ------------------------------------------------------------------------------------------------------------------------------------ 17171( 6) - 11-Jun-2024 22:30:03 - [ 4] Visit: 01 (J0256+0122) 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 J0256+0122 COS/NUV ACQ/IMA PSA MIRRORA 1 300. S GE (300 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 J0256+0122 COS/FUV TIME-TA PSA G140L 800 BUFFER-TIME=10000., FLASH=YES, 1 1799. S G FP-POS=1, SEGMENT=A (1799 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 J0256+0122 COS/FUV TIME-TA PSA G140L 800 BUFFER-TIME=10000., FLASH=YES, 1 2686. S G FP-POS=1, SEGMENT=A (2686 S) ------------------------------------------------------------------------------------------------------------------------------------ 4 J0256+0122 COS/FUV TIME-TA PSA G140L 800 BUFFER-TIME=10000., FLASH=YES, 1 1286. S G FP-POS=2, SEGMENT=A see below (2686 S) ------------------------------------------------------------------------------------------------------------------------------------ 5 J0256+0122 COS/FUV TIME-TA PSA G140L 800 BUFFER-TIME=10000., FLASH=YES, 1 1285 S G FP-POS=3, SEGMENT=A see below (2686 S) ------------------------------------------------------------------------------------------------------------------------------------ 6 J0256+0122 COS/FUV TIME-TA PSA G140L 800 BUFFER-TIME=10000., FLASH=YES, 1 1285. S G FP-POS=4, SEGMENT=A see below (2686 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 | ------------------------------------------------------------------------------------------------------------------------------------ J0256+0122 1 COS/NUV ACQ/IMA PSA MIRRORA none none none none 1 N/A GE J0256+0122 2 COS/FUV TIME-TA PSA G140L 800 none none none none 1 N/A G J0256+0122 3 COS/FUV TIME-TA PSA G140L 800 none none none none 2 N/A G J0256+0122 4 COS/FUV TIME-TA PSA G140L 800 none none none none 3 2686.0 S G J0256+0122 5 COS/FUV TIME-TA PSA G140L 800 none none none none 4 2686.0 S G J0256+0122 6 COS/FUV TIME-TA PSA G140L 800 none none none none 5 2686.0 S G 17171( 6) - 11-Jun-2024 22:30:03 - [ 5] Visit: 02 (J0815+2942) 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 J0815+2942 COS/NUV ACQ/IMA PSA MIRRORA 1 300. S GE (300 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 J0815+2942 COS/FUV TIME-TA PSA G140L 800 BUFFER-TIME=10000., FLASH=YES, 1 1822. S G FP-POS=1, SEGMENT=A (1822 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 J0815+2942 COS/FUV TIME-TA PSA G140L 800 BUFFER-TIME=10000., FLASH=YES, 1 2709. S G FP-POS=1, SEGMENT=A (2709 S) ------------------------------------------------------------------------------------------------------------------------------------ 4 J0815+2942 COS/FUV TIME-TA PSA G140L 800 BUFFER-TIME=10000., FLASH=YES, 1 1297. S G FP-POS=2, SEGMENT=A see below (2709 S) ------------------------------------------------------------------------------------------------------------------------------------ 5 J0815+2942 COS/FUV TIME-TA PSA G140L 800 BUFFER-TIME=10000., FLASH=YES, 1 1297. S G FP-POS=3, SEGMENT=A see below (2709 S) ------------------------------------------------------------------------------------------------------------------------------------ 6 J0815+2942 COS/FUV TIME-TA PSA G140L 800 BUFFER-TIME=10000., FLASH=YES, 1 1297. S G FP-POS=4, SEGMENT=A see below (2709 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 | ------------------------------------------------------------------------------------------------------------------------------------ J0815+2942 1 COS/NUV ACQ/IMA PSA MIRRORA none none none none 1 N/A GE J0815+2942 2 COS/FUV TIME-TA PSA G140L 800 none none none none 1 N/A G J0815+2942 3 COS/FUV TIME-TA PSA G140L 800 none none none none 2 N/A G J0815+2942 4 COS/FUV TIME-TA PSA G140L 800 none none none none 3 2709.0 S G J0815+2942 5 COS/FUV TIME-TA PSA G140L 800 none none none none 4 2709.0 S G J0815+2942 6 COS/FUV TIME-TA PSA G140L 800 none none none none 5 2709.0 S G 17171( 6) - 11-Jun-2024 22:30:03 - [ 6] Visit: 03 (J0908+4626) 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 J0908+4626 COS/NUV ACQ/IMA PSA MIRRORA 1 300. S GE (300 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 J0908+4626 COS/FUV TIME-TA PSA G140L 800 BUFFER-TIME=10000., FLASH=YES, 1 1732. S G FP-POS=1, SEGMENT=A (1732 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 J0908+4626 COS/FUV TIME-TA PSA G140L 800 BUFFER-TIME=10000., FLASH=YES, 1 2618. S G FP-POS=1, SEGMENT=A (2618 S) ------------------------------------------------------------------------------------------------------------------------------------ 4 J0908+4626 COS/FUV TIME-TA PSA G140L 800 BUFFER-TIME=10000., FLASH=YES, 1 2618. S G FP-POS=2, SEGMENT=A (2618 S) ------------------------------------------------------------------------------------------------------------------------------------ 5 J0908+4626 COS/FUV TIME-TA PSA G140L 800 BUFFER-TIME=10000., FLASH=YES, 1 2618. S G FP-POS=3, SEGMENT=A (2618 S) ------------------------------------------------------------------------------------------------------------------------------------ 6 J0908+4626 COS/FUV TIME-TA PSA G140L 800 BUFFER-TIME=10000., FLASH=YES, 1 2618 S G FP-POS=4, SEGMENT=A (2618 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 | ------------------------------------------------------------------------------------------------------------------------------------ J0908+4626 1 COS/NUV ACQ/IMA PSA MIRRORA none none none none 1 N/A GE J0908+4626 2 COS/FUV TIME-TA PSA G140L 800 none none none none 1 N/A G J0908+4626 3 COS/FUV TIME-TA PSA G140L 800 none none none none 2 N/A G J0908+4626 4 COS/FUV TIME-TA PSA G140L 800 none none none none 3 N/A G J0908+4626 5 COS/FUV TIME-TA PSA G140L 800 none none none none 4 N/A G J0908+4626 6 COS/FUV TIME-TA PSA G140L 800 none none none none 5 N/A G 17171( 6) - 11-Jun-2024 22:30:03 - [ 7] Visit: 04 (J0955+3935) 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 J0955+3935 COS/NUV ACQ/IMA PSA MIRRORA 1 300. S GE (300 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 J0955+3935 COS/FUV TIME-TA PSA G140L 800 BUFFER-TIME=10000., FLASH=YES, 1 1857. S G FP-POS=1, SEGMENT=A (1857 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 J0955+3935 COS/FUV TIME-TA PSA G140L 800 BUFFER-TIME=10000., FLASH=YES, 1 2800. S G FP-POS=1, SEGMENT=A see below (2744 S) ------------------------------------------------------------------------------------------------------------------------------------ 4 J0955+3935 COS/FUV TIME-TA PSA G140L 800 BUFFER-TIME=10000., FLASH=YES, 1 1270. S G FP-POS=2, SEGMENT=A see below (2744 S) ------------------------------------------------------------------------------------------------------------------------------------ 5 J0955+3935 COS/FUV TIME-TA PSA G140L 800 BUFFER-TIME=10000., FLASH=YES, 1 1270. S G FP-POS=3, SEGMENT=A see below (2744 S) ------------------------------------------------------------------------------------------------------------------------------------ 6 J0955+3935 COS/FUV TIME-TA PSA G140L 800 BUFFER-TIME=10000., FLASH=YES, 1 1315. S G FP-POS=4, SEGMENT=A see below (2744 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 | ------------------------------------------------------------------------------------------------------------------------------------ J0955+3935 1 COS/NUV ACQ/IMA PSA MIRRORA none none none none 1 N/A GE J0955+3935 2 COS/FUV TIME-TA PSA G140L 800 none none none none 1 N/A G J0955+3935 3 COS/FUV TIME-TA PSA G140L 800 none none none none 2 2744.0 S G J0955+3935 4 COS/FUV TIME-TA PSA G140L 800 none none none none 3 2744.0 S G J0955+3935 5 COS/FUV TIME-TA PSA G140L 800 none none none none 4 2744.0 S G J0955+3935 6 COS/FUV TIME-TA PSA G140L 800 none none none none 5 2744.0 S G 17171( 6) - 11-Jun-2024 22:30:03 - [ 8] Visit: 05 (J1021+0436) 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 J1021+0436 COS/NUV ACQ/IMA PSA MIRRORA 1 300. S GE (300 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 J1021+0436 COS/FUV TIME-TA PSA G140L 800 BUFFER-TIME=10000., FLASH=YES, 1 1799. S G FP-POS=1, SEGMENT=A (1799 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 J1021+0436 COS/FUV TIME-TA PSA G140L 800 BUFFER-TIME=10000., FLASH=YES, 1 2686. S G FP-POS=1, SEGMENT=A (2686 S) ------------------------------------------------------------------------------------------------------------------------------------ 4 J1021+0436 COS/FUV TIME-TA PSA G140L 800 BUFFER-TIME=10000., FLASH=YES, 1 1285. S G FP-POS=2, SEGMENT=A see below (2686 S) ------------------------------------------------------------------------------------------------------------------------------------ 5 J1021+0436 COS/FUV TIME-TA PSA G140L 800 BUFFER-TIME=10000., FLASH=YES, 1 1286. S G FP-POS=3, SEGMENT=A see below (2686 S) ------------------------------------------------------------------------------------------------------------------------------------ 6 J1021+0436 COS/FUV TIME-TA PSA G140L 800 BUFFER-TIME=10000., FLASH=YES, 1 1285. S G FP-POS=4, SEGMENT=A see below (2686 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 | ------------------------------------------------------------------------------------------------------------------------------------ J1021+0436 1 COS/NUV ACQ/IMA PSA MIRRORA none none none none 1 N/A GE J1021+0436 2 COS/FUV TIME-TA PSA G140L 800 none none none none 1 N/A G J1021+0436 3 COS/FUV TIME-TA PSA G140L 800 none none none none 2 N/A G J1021+0436 4 COS/FUV TIME-TA PSA G140L 800 none none none none 3 2686.0 S G J1021+0436 5 COS/FUV TIME-TA PSA G140L 800 none none none none 4 2686.0 S G J1021+0436 6 COS/FUV TIME-TA PSA G140L 800 none none none none 5 2686.0 S G 17171( 6) - 11-Jun-2024 22:30:03 - [ 9] Visit: 55 (J1021+0436-REPEAT) Visit Requirements: On Hold Comments: Additional Comments: Repeat of failed visit 05 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 J1021+0436- COS/NUV ACQ/IMA PSA MIRRORA 1 150. S REPEAT GE (150 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 J1021+0436- COS/FUV TIME-TA PSA G140L 800 BUFFER-TIME=10000., FLASH=YES, 1 1975 S REPEAT G FP-POS=1, SEGMENT=A (1975 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 J1021+0436- COS/FUV TIME-TA PSA G140L 800 BUFFER-TIME=10000., FLASH=YES, 1 2561. S REPEAT G FP-POS=2, SEGMENT=A (2561 S) ------------------------------------------------------------------------------------------------------------------------------------ 4 J1021+0436- COS/FUV TIME-TA PSA G140L 800 BUFFER-TIME=10000., FLASH=YES, 1 2561. S REPEAT G FP-POS=3, SEGMENT=A (2561 S) ------------------------------------------------------------------------------------------------------------------------------------ 5 J1021+0436- COS/FUV TIME-TA PSA G140L 800 BUFFER-TIME=10000., FLASH=YES, 1 2561 S REPEAT G FP-POS=4, SEGMENT=A (2561 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 | ------------------------------------------------------------------------------------------------------------------------------------ J1021+0436-REPEAT 1 COS/NUV ACQ/IMA PSA MIRRORA none none none none 1 N/A GE J1021+0436-REPEAT 2 COS/FUV TIME-TA PSA G140L 800 none none none none 1 N/A G J1021+0436-REPEAT 3 COS/FUV TIME-TA PSA G140L 800 none none none none 2 N/A G J1021+0436-REPEAT 4 COS/FUV TIME-TA PSA G140L 800 none none none none 3 N/A G J1021+0436-REPEAT 5 COS/FUV TIME-TA PSA G140L 800 none none none none 4 N/A G 17171( 6) - 11-Jun-2024 22:30:03 - [ 10] Summary Form for Proposal 17171 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures PSA ------------------------------------------------------------------------------------------------------------------------------------ Configurations COS/FUV, COS/NUV ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACQ/IMAGE, TIME-TAG ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters BUFFER-TIME=10000., FLASH=YES, FP-POS=1, FP-POS=2, FP-POS=3, FP-POS=4, SEGMENT=A ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements G140L, MIRRORA ------------------------------------------------------------------------------------------------------------------------------------ Target Names J0256+0122, J0815+2942, J0908+4626, J0955+3935, J1021+0436, J1021+0436-REPEAT ------------------------------------------------------------------------------------------------------------------------------------