14148( 3) - 24-Jul-2015 17:21:58 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 14148 Version: 3 Check-in Time: 24-Jul-2015 17:21:58 STScI Edit Number: 1 Title Near-IR Imaging of Three Spectacular Lensed Submillimeter Galaxies Discovered by the Herschel Lensing Survey ------------------------------------------------------------------------------------ Type Cycle GO 23 ------------------------------------------------------------------------------------ Investigators Contact? PI: Dr. Eiichi Egami University of Arizona Y CoI: Dr. Timothy Rawle ESA-European Space Astronomy Centre N CoI: Gregory Walth University of Arizona N CoI: Dr. Wiphu Rujopakarn University of Arizona N CoI: Dr. Benjamin Clement Centre de Recherche Astronomique de Lyon N CoI: Prof. Pablo G. Perez-Gonzalez Universidad Complutense de Madrid N CoI: Dr. Johan Richard Centre de Recherche Astronomique de Lyon N CoI: Prof. Jean-Paul Kneib Ecole Polytechnique Federale de Lausanne N CoI: Dr. Harald Ebeling University of Hawaii N CoI: Dr. Miroslava Dessauges-Zavadsky Observatoire de Geneve N CoI: Prof. Daniel Schaerer Observatoire de Geneve N CoI: Dr. Michel Zamojski Observatoire de Geneve N CoI: Prof. Andrew Blain University of Leicester N CoI: Dr. Frederic Boone Observatoire Midi-Pyrenees N CoI: Dr. Carrie Bridge California Institute of Technology N CoI: Dr. Alastair C. Edge Durham Univ. N CoI: Dr. Ian R. Smail Durham Univ. N CoI: Dr. Mark Swinbank Durham Univ. N CoI: Dr. Paul van der Werf Universiteit Leiden N ------------------------------------------------------------------------------------ Abstract One of the most remarkable Herschel results is the discovery of exceptionally bright gravitationally lensed submillimeter galaxies (SMGs). The great sensitivity and mapping speed of SPIRE on Herschel have enabled us to find these rare (< 1 per square degree) extraordinary objects in large numbers. Here, we propose to conduct near-IR imaging of three spectacular lensed SMGs at z=2.04, 4.69, and 5.24 discovered by our Herschel Lensing Survey (HLS; PI: Egami), which has imaged a total of 581 massive galaxy cluster fields. High-resolution dust-continuum and CO/[CII] line maps we have obtained with SMA, PdBI, JVLA revealed complicated internal structures, allowing us to probe the properties of star-forming regions on the sub-kpc scale. What is missing, however, is the information on the underlying stellar population. We will fill this gap by obtaining WFC3/IR images and mapping out the spatial distribution of the underlying stellar population as well as the amount of dust extinction it suffers. We will soon receive ALMA data for two of these SMGs with a spatial resolution of 0.2", and the third galaxy already has PdBI maps with a spatial resolution of 0.3" (this galaxy is too north for ALMA to observe). The ~0.15'' resolution provided by WFC3/IR nicely matches these resolutions, and can produce a source-plane spatial resolution of <100 pc when the lensing magnification is taken into account. Such a combination of HST/WFC3 images and high-resolution submillimeter/millimeter maps will open up a new frontier in the study of vigorously star-forming dust-obscured 14148( 3) - 24-Jul-2015 17:21:58 - [ 2] galaxies at high redshift, allowing us to probe the physical properties of star-forming regions individually. ------------------------------------------------------------------------------------ Observations Description ------------------------ We will conduct near-IR imaging of three spectacular lensed submillimeter galaxies at z=2.04, 4.69, and 5.24 using WFC3/IR with the F110W and F160W filters. The z=2.04 galaxy is a gravitational arc extending over ~5". We will integrated for 0.5 orbit per filter. The z=4.69 galaxy consists of four lensed images that roughly form a rectangle of ~10" on a side. We will integrate for 1 orbit per filter. The z=5.24 galaxy is a gravitational ring with a radius of ~1" centered on a foreground lensing galaxy. We will integrate for one orbit per filter. ------------------------------------------------------------------------------------ 14148( 3) - 24-Jul-2015 17:21:58 - [ 3] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 MACSJ0257.6- GALAXY, STARBURST, RA=02H57M41.0800S +/- 0.1", J2000 Z = 4.69 J/H ~26-27 AB mag 2209 ULTRALUMINOUS IR GAL DEC=-22D09'17.80" +/- 0.1" Reference Frame: ICRS Extended: YES Comments: This z=4.69 galaxy consists of four lensed images that roughly form a rectangle of ~10" on a side. ------------------------------------------------------------------------------------------------------------------------------------ 2 MACSJ2043.2- GALAXY, STARBURST, RA=20H43M14.6300S +/- 0.1", J2000 Z = 2.04 J/H = 25-26 AB mag 2144 ULTRALUMINOUS IR GAL DEC=-21D44'33.60" +/- 0.1" Reference Frame: ICRS Extended: YES Comments: This z=2.04 galaxy is a gravitational arc extending over ~5". ------------------------------------------------------------------------------------------------------------------------------------ 3 A773 GALAXY, STARBURST, RA=09H18M28.6000S +/- 0.1", J2000 Z = 5.24 J/H ~ 26-27 AB mag ULTRALUMINOUS IR GAL DEC=+51D42'23.00" +/- 0.1" Reference Frame: ICRS Extended: YES Comments: This z=5.24 galaxy is a gravitational ring with a radius of ~1" centered on a foreground lensing galaxy. ------------------------------------------------------------------------------------------------------------------------------------ 14148( 3) - 24-Jul-2015 17:21:58 - [ 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 ------------------------------------------------------------------------------------------------------------------------------------ 14148( 3) - 24-Jul-2015 17:21:58 - [ 5] 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 MACSJ0257.6 WFC3/IR MULTIAC IR-FIX F110W SAMP-SEQ=SPARS100, NSAMP=7 1 DEF LOW-SKY; PATTERN 1 1 -2209 CUM (2411.737 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 MACSJ0257.6 WFC3/IR MULTIAC IR-FIX F160W SAMP-SEQ=SPARS100, NSAMP=7 1 DEF LOW-SKY; PATTERN 1 2 -2209 CUM (2411.737 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 | ------------------------------------------------------------------------------------------------------------------------------------ MACSJ0257.6-2209 1 WFC3/IR MULTIAC IR-FIX F110W 1 none none none 1 N/A CUM MACSJ0257.6-2209 1 WFC3/IR MULTIAC IR-FIX F110W 2 none none none 1 N/A CUM MACSJ0257.6-2209 1 WFC3/IR MULTIAC IR-FIX F110W 3 none none none 1 N/A CUM MACSJ0257.6-2209 1 WFC3/IR MULTIAC IR-FIX F110W 4 none none none 1 N/A CUM MACSJ0257.6-2209 2 WFC3/IR MULTIAC IR-FIX F160W 1 none none none 2 N/A CUM MACSJ0257.6-2209 2 WFC3/IR MULTIAC IR-FIX F160W 2 none none none 2 N/A CUM MACSJ0257.6-2209 2 WFC3/IR MULTIAC IR-FIX F160W 3 none none none 2 N/A CUM MACSJ0257.6-2209 2 WFC3/IR MULTIAC IR-FIX F160W 4 none none none 2 N/A CUM 14148( 3) - 24-Jul-2015 17:21:58 - [ 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 A773 WFC3/IR MULTIAC IR F110W SAMP-SEQ=SPARS100, NSAMP=7 1 DEF LOW-SKY; GS ACQ SCENARIO CUM (2411.737 BASE1B3; PATTERN 1 1 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 A773 WFC3/IR MULTIAC IR F160W SAMP-SEQ=SPARS100, NSAMP=7 1 DEF LOW-SKY; PATTERN 1 2 CUM (2411.737 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 | ------------------------------------------------------------------------------------------------------------------------------------ A773 1 WFC3/IR MULTIAC IR F110W 1 none none none 1 N/A CUM A773 1 WFC3/IR MULTIAC IR F110W 2 none none none 1 N/A CUM A773 1 WFC3/IR MULTIAC IR F110W 3 none none none 1 N/A CUM A773 1 WFC3/IR MULTIAC IR F110W 4 none none none 1 N/A CUM A773 2 WFC3/IR MULTIAC IR F160W 1 none none none 2 N/A CUM A773 2 WFC3/IR MULTIAC IR F160W 2 none none none 2 N/A CUM A773 2 WFC3/IR MULTIAC IR F160W 3 none none none 2 N/A CUM A773 2 WFC3/IR MULTIAC IR F160W 4 none none none 2 N/A CUM 14148( 3) - 24-Jul-2015 17:21:58 - [ 7] Visit: 03 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 MACSJ2043.2 WFC3/IR MULTIAC IR-FIX F110W SAMP-SEQ=SPARS50, NSAMP=6 1 DEF LOW-SKY; PATTERN 1 1 -2144 CUM (1011.738 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 MACSJ2043.2 WFC3/IR MULTIAC IR-FIX F160W SAMP-SEQ=SPARS50, NSAMP=7 1 DEF LOW-SKY; PATTERN 1 2 -2144 CUM (1211.74 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 | ------------------------------------------------------------------------------------------------------------------------------------ MACSJ2043.2-2144 1 WFC3/IR MULTIAC IR-FIX F110W 1 none none none 1 N/A CUM MACSJ2043.2-2144 1 WFC3/IR MULTIAC IR-FIX F110W 2 none none none 1 N/A CUM MACSJ2043.2-2144 1 WFC3/IR MULTIAC IR-FIX F110W 3 none none none 1 N/A CUM MACSJ2043.2-2144 1 WFC3/IR MULTIAC IR-FIX F110W 4 none none none 1 N/A CUM MACSJ2043.2-2144 2 WFC3/IR MULTIAC IR-FIX F160W 1 none none none 1 N/A CUM MACSJ2043.2-2144 2 WFC3/IR MULTIAC IR-FIX F160W 2 none none none 1 N/A CUM MACSJ2043.2-2144 2 WFC3/IR MULTIAC IR-FIX F160W 3 none none none 1 N/A CUM MACSJ2043.2-2144 2 WFC3/IR MULTIAC IR-FIX F160W 4 none none none 1 N/A CUM 14148( 3) - 24-Jul-2015 17:21:58 - [ 8] Summary Form for Proposal 14148 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures IR, IR-FIX ------------------------------------------------------------------------------------------------------------------------------------ Configurations WFC3/IR ------------------------------------------------------------------------------------------------------------------------------------ Opmodes MULTIACCUM ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters NSAMP=6, NSAMP=7, SAMP-SEQ=SPARS100, SAMP-SEQ=SPARS50 ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements GS ACQ SCENARIO BASE1B3, LOW-SKY, PATTERN 1 1, PATTERN 1 2 ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F110W, F160W ------------------------------------------------------------------------------------------------------------------------------------ Target Names A773, MACSJ0257.6-2209, MACSJ2043.2-2144 ------------------------------------------------------------------------------------------------------------------------------------