14699( 3) - 28-Nov-2016 13:52:51 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 14699 Version: 3 Check-in Time: 28-Nov-2016 13:52:51 STScI Edit Number: 0 Title The hosts of the early ionized bubbles: the nature and diversity of the most luminous Lyman-alpha emitters at z~6-7 ------------------------------------------------------------------------------------ Type Cycle GO 24 ------------------------------------------------------------------------------------ Investigators Contact? PI: Dr. David Sobral Lancaster University Y CoI: Mr. Jorryt Matthee Sterrewacht Leiden N CoI: Dr. Behnam Darvish California Institute of Technology N CoI: Dr. Bahram Mobasher University of California - Riverside N CoI: Prof. Daniel Schaerer Observatoire de Geneve N CoI: Mr. Sergio Santos Universidade de Lisboa, Dept. of Fisica N CoI: Dr. Huub Rottgering Sterrewacht Leiden N ------------------------------------------------------------------------------------ Abstract The most distant sources stringently test models of early galaxy formation and of the epoch of re-ionisation. Recently, we have spectroscopically confirmed the brightest Lyman-alpha (Lya) emitters at z~7 (e.g. CR7; Sobral et al. 2015) and showed that luminous Lya emitters at z~7 (e.g. Himiko) are not as rare as previously thought. Surprisingly, we find even higher luminosity Lya emitters at z = 6.6 (Matthee et al. 2015) and at z=5.7, implying that at these high redshifts the bright end of the Lya luminosity function is likely a power-law, and certainly not a Schechter function. We are also revealing, for the first time, the potential diversity and unexpected nature of luminous Lya emitters at z~6-7. CR7 is already the subject of a wide variety of papers exploring its PopIII-like or direct collapse black hole (DCBH) nature; now is the time to study the first sample of CR7-like sources at z~6-7. Our aim is to study the first sample of ~10 luminous Lya emitters just before and after the epoch of re-ionisation, in order to unveil their nature and evolution. Are they capable of ionising their own bubbles (allowing their Lya to be observable)? Are all sources split into multiple components? What are their typical (and range of) UV luminosities and sizes? Do they always contain redder/older stellar populations, likely responsible for previously ionizing a local bubble? Can some of them be lensed? We will be able to address these questions for the first time, by obtaining WFC3 observations of MASOSA and other 9 newly discovered luminous Lya emitters at z=5.7 and 6.6 in the SA22 field and directly compare them with the same observations already done for CR7+Himiko. ------------------------------------------------------------------------------------ Observations Description ------------------------ Follow up in rest-frame UV of bright Lyman-alpha emitters at z=6.6 and z=5.7. Some pointings contain more than one target (e.g. VR7). For VR7 observations, WFC3 needs to have the longer axis (136 arcsec) of the CCD aligned North-South, to image both sources. 14699( 3) - 28-Nov-2016 13:52:51 - [ 2] Two filters will be used for the z=6.6 targets (pointing centers: VR7, MASOSA, SA22WIDE-219795): F110W and F160W. Two other filters will be used for the z=5.7 targets (SSM16 targets), to probe similar rest-frame lambda: F098M and F140W. ------------------------------------------------------------------------------------ 14699( 3) - 28-Nov-2016 13:52:51 - [ 3] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 VR7 GALAXY, EMISSION LINE RA=22H18M56.3600S, J2000 V = 35 24.5 AB J band. Undetected bluer NEBULA, HIGH REDSHIFT DEC=+00D08'7.32" of z band (z=6.6 source) GALAXY, LYMAN ALPHA CLOUD Reference Frame: ICRS ------------------------------------------------------------------------------------------------------------------------------------ 2 MASOSA GALAXY, EMISSION LINE RA=10H01M24.8010S, J2000 V = 35 26 AB J band. Undetected bluer NEBULA, HIGH REDSHIFT DEC=+02D31'45.34" of z band (z=6.6 source) GALAXY, LYMAN ALPHA CLOUD Reference Frame: ICRS ------------------------------------------------------------------------------------------------------------------------------------ 3 SCR7 GALAXY, EMISSION LINE RA=09H59M50.0500S, J2000 V = 35 ~25 AB Jband. Undetected bluer NEBULA, HIGH REDSHIFT DEC=+01D49'42.72" of z band (z=6.6 source) GALAXY, LYMAN ALPHA CLOUD Reference Frame: ICRS ------------------------------------------------------------------------------------------------------------------------------------ 9 SSM16-SA22-3 GALAXY, EMISSION LINE RA=22H15M1.2160S, J2000 V = 35 J~24. Undetected bluer of r band 90412 NEBULA, HIGH REDSHIFT DEC=+00D46'24.25" (z=5.7 source) GALAXY, LYMAN ALPHA CLOUD Reference Frame: ICRS ------------------------------------------------------------------------------------------------------------------------------------ 10 SSM16-SA22-5 GALAXY, EMISSION LINE RA=22H19M49.7610S, J2000 V = 35 J~24. Undetected bluer of r band 09891 NEBULA, HIGH REDSHIFT DEC=+00D48'23.90" (z=5.7 source) GALAXY, LYMAN ALPHA CLOUD Reference Frame: ICRS ------------------------------------------------------------------------------------------------------------------------------------ 14699( 3) - 28-Nov-2016 13:52:51 - [ 4] Patterns ------------------------------------------------------------------------------------------------------------------------------------ Pattern_Number: 1 Primary_Pattern Secondary_Pattern Pattern_Type WFC3-IR-DITHER-BOX-MIN Pattern_Purpose DITHER Number_Of_Points 4 Point_Spacing 0.572 Line_Spacing 0.365 Coordinate_Frame POS-TARG Pattern_Orient 18.528 Angle_Between_Sides 74.653 Center_Pattern NO ------------------------------------------------------------------------------------------------------------------------------------ Pattern_Number: 2 Primary_Pattern Secondary_Pattern Pattern_Type SPIRAL Pattern_Purpose DITHER Number_Of_Points 3 Point_Spacing 0.5 Line_Spacing Coordinate_Frame POS-TARG Pattern_Orient 18.5 Angle_Between_Sides Center_Pattern NO ------------------------------------------------------------------------------------------------------------------------------------ 14699( 3) - 28-Nov-2016 13:52:51 - [ 5] Visit: 01 Visit Requirements: On Hold Comments: Additional Comments: Orientation should have 132arcsec lenght of the detector orientated ~N-S. 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 VR7 WFC3/IR MULTIAC IR F110W NSAMP=14, SAMP-SEQ=SPARS50 1 DEF PATTERN 1 1 CUM (2611.753 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 VR7 WFC3/IR MULTIAC IR F160W NSAMP=14, SAMP-SEQ=SPARS50 1 DEF PATTERN 1 2 CUM (2611.753 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 VR7 WFC3/IR MULTIAC IR F160W NSAMP=14, SAMP-SEQ=SPARS50 1 DEF PATTERN 1 3 CUM (2611.753 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 | ------------------------------------------------------------------------------------------------------------------------------------ VR7 1 WFC3/IR MULTIAC IR F110W 1 none none none 1 N/A CUM VR7 1 WFC3/IR MULTIAC IR F110W 2 none none none 1 N/A CUM VR7 1 WFC3/IR MULTIAC IR F110W 3 none none none 1 N/A CUM VR7 1 WFC3/IR MULTIAC IR F110W 4 none none none 1 N/A CUM VR7 2 WFC3/IR MULTIAC IR F160W 1 none none none 2 N/A CUM VR7 2 WFC3/IR MULTIAC IR F160W 2 none none none 2 N/A CUM VR7 2 WFC3/IR MULTIAC IR F160W 3 none none none 2 N/A CUM VR7 2 WFC3/IR MULTIAC IR F160W 4 none none none 2 N/A CUM VR7 3 WFC3/IR MULTIAC IR F160W 1 none none none 3 N/A CUM VR7 3 WFC3/IR MULTIAC IR F160W 2 none none none 3 N/A CUM VR7 3 WFC3/IR MULTIAC IR F160W 3 none none none 3 N/A CUM VR7 3 WFC3/IR MULTIAC IR F160W 4 none none none 3 N/A CUM 14699( 3) - 28-Nov-2016 13:52:51 - [ 6] Visit: 02 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 MASOSA WFC3/IR MULTIAC IR F110W NSAMP=14, SAMP-SEQ=SPARS50 1 DEF PATTERN 1 1 CUM (2611.753 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 MASOSA WFC3/IR MULTIAC IR F110W NSAMP=14, SAMP-SEQ=SPARS50 1 DEF PATTERN 1 2 CUM (2611.753 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 MASOSA WFC3/IR MULTIAC IR F160W NSAMP=14, SAMP-SEQ=SPARS50 1 DEF PATTERN 1 3 CUM (2611.753 S) ------------------------------------------------------------------------------------------------------------------------------------ 4 MASOSA WFC3/IR MULTIAC IR F160W NSAMP=14, SAMP-SEQ=SPARS50 1 DEF PATTERN 1 4 CUM (2611.753 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 | ------------------------------------------------------------------------------------------------------------------------------------ MASOSA 1 WFC3/IR MULTIAC IR F110W 1 none none none 1 N/A CUM MASOSA 1 WFC3/IR MULTIAC IR F110W 2 none none none 1 N/A CUM MASOSA 1 WFC3/IR MULTIAC IR F110W 3 none none none 1 N/A CUM MASOSA 1 WFC3/IR MULTIAC IR F110W 4 none none none 1 N/A CUM MASOSA 2 WFC3/IR MULTIAC IR F110W 1 none none none 2 N/A CUM MASOSA 2 WFC3/IR MULTIAC IR F110W 2 none none none 2 N/A CUM MASOSA 2 WFC3/IR MULTIAC IR F110W 3 none none none 2 N/A CUM MASOSA 2 WFC3/IR MULTIAC IR F110W 4 none none none 2 N/A CUM MASOSA 3 WFC3/IR MULTIAC IR F160W 1 none none none 3 N/A CUM MASOSA 3 WFC3/IR MULTIAC IR F160W 2 none none none 3 N/A CUM 14699( 3) - 28-Nov-2016 13:52:51 - [ 7] 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 | ------------------------------------------------------------------------------------------------------------------------------------ MASOSA 3 WFC3/IR MULTIAC IR F160W 3 none none none 3 N/A CUM MASOSA 3 WFC3/IR MULTIAC IR F160W 4 none none none 3 N/A CUM MASOSA 4 WFC3/IR MULTIAC IR F160W 1 none none none 4 N/A CUM MASOSA 4 WFC3/IR MULTIAC IR F160W 2 none none none 4 N/A CUM MASOSA 4 WFC3/IR MULTIAC IR F160W 3 none none none 4 N/A CUM MASOSA 4 WFC3/IR MULTIAC IR F160W 4 none none none 4 N/A CUM 14699( 3) - 28-Nov-2016 13:52:51 - [ 8] Visit: 03 Visit Requirements: On Hold Comments: Additional Comments: Orientation should have 132arcsec lenght of the detector orientated ~N-S. 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 SCR7 WFC3/IR MULTIAC IR F110W NSAMP=10, SAMP-SEQ=SPARS50 1 DEF PATTERN 2 1 CUM (1358.809 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 SCR7 WFC3/IR MULTIAC IR F160W NSAMP=8, SAMP-SEQ=SPARS50 1 DEF PATTERN 2 2 CUM (1058.806 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 | ------------------------------------------------------------------------------------------------------------------------------------ SCR7 1 WFC3/IR MULTIAC IR F110W 1 none none none 1 N/A CUM SCR7 1 WFC3/IR MULTIAC IR F110W 2 none none none 1 N/A CUM SCR7 1 WFC3/IR MULTIAC IR F110W 3 none none none 1 N/A CUM SCR7 2 WFC3/IR MULTIAC IR F160W 1 none none none 1 N/A CUM SCR7 2 WFC3/IR MULTIAC IR F160W 2 none none none 1 N/A CUM SCR7 2 WFC3/IR MULTIAC IR F160W 3 none none none 1 N/A CUM 14699( 3) - 28-Nov-2016 13:52:51 - [ 9] Visit: 04 Visit Requirements: On Hold Comments: Additional Comments: Orientation should have 132arcsec lenght of the detector orientated ~N-S. 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 SSM16-SA22- WFC3/IR MULTIAC IR F098M NSAMP=10, SAMP-SEQ=SPARS50 1 DEF PATTERN 2 1 509891 CUM (1358.809 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 SSM16-SA22- WFC3/IR MULTIAC IR F140W NSAMP=8, SAMP-SEQ=SPARS50 1 DEF PATTERN 2 2 509891 CUM (1058.806 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 | ------------------------------------------------------------------------------------------------------------------------------------ SSM16-SA22-509891 1 WFC3/IR MULTIAC IR F098M 1 none none none 1 N/A CUM SSM16-SA22-509891 1 WFC3/IR MULTIAC IR F098M 2 none none none 1 N/A CUM SSM16-SA22-509891 1 WFC3/IR MULTIAC IR F098M 3 none none none 1 N/A CUM SSM16-SA22-509891 2 WFC3/IR MULTIAC IR F140W 1 none none none 1 N/A CUM SSM16-SA22-509891 2 WFC3/IR MULTIAC IR F140W 2 none none none 1 N/A CUM SSM16-SA22-509891 2 WFC3/IR MULTIAC IR F140W 3 none none none 1 N/A CUM 14699( 3) - 28-Nov-2016 13:52:51 - [ 10] Visit: 05 Visit Requirements: On Hold Comments: Additional Comments: Orientation should have 132arcsec lenght of the detector orientated ~N-S. 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 SSM16-SA22- WFC3/IR MULTIAC IR F098M NSAMP=10, SAMP-SEQ=SPARS50 1 DEF PATTERN 2 1 509891 CUM (1358.809 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 SSM16-SA22- WFC3/IR MULTIAC IR F140W NSAMP=8, SAMP-SEQ=SPARS50 1 DEF PATTERN 2 2 509891 CUM (1058.806 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 | ------------------------------------------------------------------------------------------------------------------------------------ SSM16-SA22-509891 1 WFC3/IR MULTIAC IR F098M 1 none none none 1 N/A CUM SSM16-SA22-509891 1 WFC3/IR MULTIAC IR F098M 2 none none none 1 N/A CUM SSM16-SA22-509891 1 WFC3/IR MULTIAC IR F098M 3 none none none 1 N/A CUM SSM16-SA22-509891 2 WFC3/IR MULTIAC IR F140W 1 none none none 1 N/A CUM SSM16-SA22-509891 2 WFC3/IR MULTIAC IR F140W 2 none none none 1 N/A CUM SSM16-SA22-509891 2 WFC3/IR MULTIAC IR F140W 3 none none none 1 N/A CUM 14699( 3) - 28-Nov-2016 13:52:51 - [ 11] Visit: 06 Visit Requirements: On Hold Comments: Additional Comments: Orientation should have 132arcsec lenght of the detector orientated ~N-S. 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 SSM16-SA22- WFC3/IR MULTIAC IR F098M NSAMP=10, SAMP-SEQ=SPARS50 1 DEF PATTERN 2 1 390412 CUM (1358.809 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 SSM16-SA22- WFC3/IR MULTIAC IR F140W NSAMP=8, SAMP-SEQ=SPARS50 1 DEF PATTERN 2 2 390412 CUM (1058.806 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 | ------------------------------------------------------------------------------------------------------------------------------------ SSM16-SA22-390412 1 WFC3/IR MULTIAC IR F098M 1 none none none 1 N/A CUM SSM16-SA22-390412 1 WFC3/IR MULTIAC IR F098M 2 none none none 1 N/A CUM SSM16-SA22-390412 1 WFC3/IR MULTIAC IR F098M 3 none none none 1 N/A CUM SSM16-SA22-390412 2 WFC3/IR MULTIAC IR F140W 1 none none none 1 N/A CUM SSM16-SA22-390412 2 WFC3/IR MULTIAC IR F140W 2 none none none 1 N/A CUM SSM16-SA22-390412 2 WFC3/IR MULTIAC IR F140W 3 none none none 1 N/A CUM 14699( 3) - 28-Nov-2016 13:52:51 - [ 12] Visit: 07 Visit Requirements: On Hold Comments: Additional Comments: Orientation should have 132arcsec lenght of the detector orientated ~N-S. 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 SSM16-SA22- WFC3/IR MULTIAC IR F098M NSAMP=10, SAMP-SEQ=SPARS50 1 DEF PATTERN 2 1 509891 CUM (1358.809 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 SSM16-SA22- WFC3/IR MULTIAC IR F140W NSAMP=8, SAMP-SEQ=SPARS50 1 DEF PATTERN 2 2 509891 CUM (1058.806 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 | ------------------------------------------------------------------------------------------------------------------------------------ SSM16-SA22-509891 1 WFC3/IR MULTIAC IR F098M 1 none none none 1 N/A CUM SSM16-SA22-509891 1 WFC3/IR MULTIAC IR F098M 2 none none none 1 N/A CUM SSM16-SA22-509891 1 WFC3/IR MULTIAC IR F098M 3 none none none 1 N/A CUM SSM16-SA22-509891 2 WFC3/IR MULTIAC IR F140W 1 none none none 1 N/A CUM SSM16-SA22-509891 2 WFC3/IR MULTIAC IR F140W 2 none none none 1 N/A CUM SSM16-SA22-509891 2 WFC3/IR MULTIAC IR F140W 3 none none none 1 N/A CUM 14699( 3) - 28-Nov-2016 13:52:51 - [ 13] Summary Form for Proposal 14699 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures IR ------------------------------------------------------------------------------------------------------------------------------------ Configurations WFC3/IR ------------------------------------------------------------------------------------------------------------------------------------ Opmodes MULTIACCUM ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters NSAMP=10, NSAMP=14, NSAMP=8, SAMP-SEQ=SPARS50 ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements PATTERN 1 1, PATTERN 1 2, PATTERN 1 3, PATTERN 1 4, PATTERN 2 1, PATTERN 2 2 ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F098M, F110W, F140W, F160W ------------------------------------------------------------------------------------------------------------------------------------ Target Names MASOSA, SCR7, SSM16-SA22-390412, SSM16-SA22-509891, VR7 ------------------------------------------------------------------------------------------------------------------------------------