11582( 6) - 21-Oct-2009 14:52:25 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 11582 Version: 6 Check-in Time: 21-Oct-2009 14:52:25 STScI Edit Number: 0 Title The spatial distribution of radiation in the complex ISM of distant ultraluminous galaxies ------------------------------------------------------------------------------------ Type Cycle GO 17 ------------------------------------------------------------------------------------ Investigators Contact? PI: Dr. Andrew Blain California Institute of Technology CoI: Dr. Scott C. Chapman University of Cambridge N CoI: Dr. Ian R. Smail University of Durham N CoI: Dr. Rob Ivison University College London N CoI: Dr. Colin J.K. Borys California Institute of Technology N CoI: Dr. Mark Swinbank University of Durham N CoI: Ms. Karin Menendez-Delmestre California Institute of Technology N ------------------------------------------------------------------------------------ Abstract A significant fraction of energy emitted by galaxies at redshifts when their stars were forming most vigorously, and when their blackholes were growing most powerfully emerges at far-infrared (IR) wavelengths. The fraction of this energy generated by the most extreme and luminous objects is also much larger than the equivalent fraction at optical wavelengths. Many of the most luminous far-IR sources have been located precisely and unambiguously using deep radio, Spitzer and optical observations, and have spectroscopic identifications using the largest ground-based telescopes. Surprisingly, however, the spectra of most of these heavily dust-enshrouded galaxies show prominent Lyman-alpha emission. We propose to observe five of the brightest examples at z~2-3 in re-activated ACS ramp filters, to resolve the spatial distribution of this line emission on fine kpc scales, in order to contrast and compare with the underlying ultraviolet (UV) continuum. Precise spectroscopic redshifts and the unique rest-UV resolution of HST are both essential to reveal the escape and generation of Lyman-alpha photons in the dusty ISM of these extreme galaxies. There is no other way to trace the detailed spatial distirbution of the most excited gas in a galactic wind, along with emission from less-massive star-forming galaxies in associated groups. The targets have available HST-resolution ground-based near-IR AO imaging and arcsec-scale images in CO from ground-based mm-wave interferometers, which provide context for spatial structure of evolved stars and the ISM. The interplay between restframe UV emission and the ISM in these galaxies has important consequences for understanding the origin of the prodigous luminosity of these systems, and for future observations with JWST and ALMA. ------------------------------------------------------------------------------------ Observations Description ------------------------ Narrow-band ramp-filter imaging of redshifted Lyman alpha emission from ultraluminous, but heavily-obscured galaxies. Corresponding broad band images in overlapping filters will also be taken for the 5 target galaxies. Real Time Justification ----------------------- 11582( 6) - 21-Oct-2009 14:52:25 - [ 2] None Calibration Justification ------------------------- None Additional Comments ------------------- None ------------------------------------------------------------------------------------ 11582( 6) - 21-Oct-2009 14:52:25 - [ 3] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 SMMJ163650.4 GALAXY, ULTRALUMINOUS RA=16H36M50.4300S +/- 0.1", J2000 V = 25 3+405734.5 IR GAL DEC=+40D57'34.50" +/- 0.1" Reference Frame: ICRS Comments: ------------------------------------------------------------------------------------------------------------------------------------ 2 SMMJ02399-01 GALAXY, ULTRALUMINOUS RA=02H39M52.0000S +/- 0.1", J2000 V = 25 36 IR GAL DEC=-01D35'57.50" +/- 0.1" Reference Frame: ICRS Comments: ------------------------------------------------------------------------------------------------------------------------------------ 5 SMMJ221726+0 GALAXY, ULTRALUMINOUS RA=22H17M26.1000S +/- 0.1", J2000 V = 25 013 IR GAL DEC=+00D12'39.00" +/- 0.1" Reference Frame: ICRS Comments: ------------------------------------------------------------------------------------------------------------------------------------ 4 SMMJ105155.5 GALAXY, ULTRALUMINOUS RA=10H51M55.5000S +/- 0.1", J2000 V = 25 +572313 IR GAL DEC=+57D23'13.00" +/- 0.1" Reference Frame: ICRS Comments: ------------------------------------------------------------------------------------------------------------------------------------ 11582( 6) - 21-Oct-2009 14:52:25 - [ 4] Patterns ------------------------------------------------------------------------------------------------------------------------------------ Pattern_Number: 1 Primary_Pattern Secondary_Pattern Pattern_Type ACS-WFC-DITHER-BOX Pattern_Purpose DITHER Number_Of_Points 4 Point_Spacing 0.265 Line_Spacing 0.187 Coordinate_Frame POS-TARG Pattern_Orient 20.67 Angle_Between_Sides 69.05 Center_Pattern NO ------------------------------------------------------------------------------------------------------------------------------------ 11582( 6) - 21-Oct-2009 14:52:25 - [ 5] Visit: 01 Visit Requirements: PCS MODE FINE; SCHED 30% 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| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 SMMJ163650. ACS/WFC ACCUM WFC F435W CR-SPLIT=3 1 2250 S LOW-SKY 43+405734.5 ------------------------------------------------------------------------------------------------------------------------------------ 2 SMMJ163650. ACS/WFC ACCUM WFC1-IRAM FR423N 4115 CR-SPLIT=3 1 2250 S PATTERN 1 2 43+405734.5 PQ ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ SMMJ163650.43+40573 1 ACS/WFC ACCUM WFC F435W none none none 1 1 N/A 4.5 SMMJ163650.43+40573 1 ACS/WFC ACCUM WFC F435W none none none 2 1 N/A 4.5 SMMJ163650.43+40573 1 ACS/WFC ACCUM WFC F435W none none none 3 1 N/A 4.5 SMMJ163650.43+40573 2 ACS/WFC ACCUM WFC1-IRA FR423N 4115 1 none none 1 2 N/A 4.5 MPQ SMMJ163650.43+40573 2 ACS/WFC ACCUM WFC1-IRA FR423N 4115 1 none none 2 2 N/A 4.5 MPQ SMMJ163650.43+40573 2 ACS/WFC ACCUM WFC1-IRA FR423N 4115 1 none none 3 2 N/A 4.5 MPQ SMMJ163650.43+40573 2 ACS/WFC ACCUM WFC1-IRA FR423N 4115 2 none none 1 3 N/A 4.5 MPQ SMMJ163650.43+40573 2 ACS/WFC ACCUM WFC1-IRA FR423N 4115 2 none none 2 3 N/A 4.5 MPQ SMMJ163650.43+40573 2 ACS/WFC ACCUM WFC1-IRA FR423N 4115 2 none none 3 3 N/A 4.5 MPQ SMMJ163650.43+40573 2 ACS/WFC ACCUM WFC1-IRA FR423N 4115 3 none none 1 4 N/A 4.5 MPQ SMMJ163650.43+40573 2 ACS/WFC ACCUM WFC1-IRA FR423N 4115 3 none none 2 4 N/A 4.5 MPQ SMMJ163650.43+40573 2 ACS/WFC ACCUM WFC1-IRA FR423N 4115 3 none none 3 4 N/A 4.5 MPQ SMMJ163650.43+40573 2 ACS/WFC ACCUM WFC1-IRA FR423N 4115 4 none none 1 5 N/A 4.5 MPQ SMMJ163650.43+40573 2 ACS/WFC ACCUM WFC1-IRA FR423N 4115 4 none none 2 5 N/A 4.5 MPQ SMMJ163650.43+40573 2 ACS/WFC ACCUM WFC1-IRA FR423N 4115 4 none none 3 5 N/A 4.5 MPQ 11582( 6) - 21-Oct-2009 14:52:25 - [ 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| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 SMMJ02399-0 ACS/WFC ACCUM WFC F475W CR-SPLIT=3 1 2250 S LOW-SKY 136 ------------------------------------------------------------------------------------------------------------------------------------ 2 SMMJ02399-0 ACS/WFC ACCUM WFC2-ORAM FR462N 4625 CR-SPLIT=3 1 2250 S PATTERN 1 2 136 PQ ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ SMMJ02399-0136 1 ACS/WFC ACCUM WFC F475W none none none 1 1 N/A SMMJ02399-0136 1 ACS/WFC ACCUM WFC F475W none none none 2 1 N/A SMMJ02399-0136 1 ACS/WFC ACCUM WFC F475W none none none 3 1 N/A SMMJ02399-0136 2 ACS/WFC ACCUM WFC2-ORA FR462N 4625 1 none none 1 2 N/A MPQ SMMJ02399-0136 2 ACS/WFC ACCUM WFC2-ORA FR462N 4625 1 none none 2 2 N/A MPQ SMMJ02399-0136 2 ACS/WFC ACCUM WFC2-ORA FR462N 4625 1 none none 3 2 N/A MPQ SMMJ02399-0136 2 ACS/WFC ACCUM WFC2-ORA FR462N 4625 2 none none 1 3 N/A MPQ SMMJ02399-0136 2 ACS/WFC ACCUM WFC2-ORA FR462N 4625 2 none none 2 3 N/A MPQ SMMJ02399-0136 2 ACS/WFC ACCUM WFC2-ORA FR462N 4625 2 none none 3 3 N/A MPQ SMMJ02399-0136 2 ACS/WFC ACCUM WFC2-ORA FR462N 4625 3 none none 1 4 N/A MPQ SMMJ02399-0136 2 ACS/WFC ACCUM WFC2-ORA FR462N 4625 3 none none 2 4 N/A MPQ SMMJ02399-0136 2 ACS/WFC ACCUM WFC2-ORA FR462N 4625 3 none none 3 4 N/A MPQ SMMJ02399-0136 2 ACS/WFC ACCUM WFC2-ORA FR462N 4625 4 none none 1 5 N/A MPQ SMMJ02399-0136 2 ACS/WFC ACCUM WFC2-ORA FR462N 4625 4 none none 2 5 N/A MPQ SMMJ02399-0136 2 ACS/WFC ACCUM WFC2-ORA FR462N 4625 4 none none 3 5 N/A MPQ 11582( 6) - 21-Oct-2009 14:52:25 - [ 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| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 SMMJ221726+ ACS/WFC ACCUM WFC F475W CR-SPLIT=3 1 2250 S LOW-SKY 0013 ------------------------------------------------------------------------------------------------------------------------------------ 2 SMMJ221726+ ACS/WFC ACCUM WFC1-MRAM FR505N 4973 CR-SPLIT=3 1 2250 S PATTERN 1 2 0013 PQ ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ SMMJ221726+0013 1 ACS/WFC ACCUM WFC F475W none none none 1 1 N/A SMMJ221726+0013 1 ACS/WFC ACCUM WFC F475W none none none 2 1 N/A SMMJ221726+0013 1 ACS/WFC ACCUM WFC F475W none none none 3 1 N/A SMMJ221726+0013 2 ACS/WFC ACCUM WFC1-MRA FR505N 4973 1 none none 1 2 N/A MPQ SMMJ221726+0013 2 ACS/WFC ACCUM WFC1-MRA FR505N 4973 1 none none 2 2 N/A MPQ SMMJ221726+0013 2 ACS/WFC ACCUM WFC1-MRA FR505N 4973 1 none none 3 2 N/A MPQ SMMJ221726+0013 2 ACS/WFC ACCUM WFC1-MRA FR505N 4973 2 none none 1 3 N/A MPQ SMMJ221726+0013 2 ACS/WFC ACCUM WFC1-MRA FR505N 4973 2 none none 2 3 N/A MPQ SMMJ221726+0013 2 ACS/WFC ACCUM WFC1-MRA FR505N 4973 2 none none 3 3 N/A MPQ SMMJ221726+0013 2 ACS/WFC ACCUM WFC1-MRA FR505N 4973 3 none none 1 4 N/A MPQ SMMJ221726+0013 2 ACS/WFC ACCUM WFC1-MRA FR505N 4973 3 none none 2 4 N/A MPQ SMMJ221726+0013 2 ACS/WFC ACCUM WFC1-MRA FR505N 4973 3 none none 3 4 N/A MPQ SMMJ221726+0013 2 ACS/WFC ACCUM WFC1-MRA FR505N 4973 4 none none 1 5 N/A MPQ SMMJ221726+0013 2 ACS/WFC ACCUM WFC1-MRA FR505N 4973 4 none none 2 5 N/A MPQ SMMJ221726+0013 2 ACS/WFC ACCUM WFC1-MRA FR505N 4973 4 none none 3 5 N/A MPQ 11582( 6) - 21-Oct-2009 14:52:25 - [ 8] Visit: 04 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| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 SMMJ105155. ACS/WFC ACCUM WFC F435W CR-SPLIT=3 1 2100 S LOW-SKY 5+572313 ------------------------------------------------------------------------------------------------------------------------------------ 2 SMMJ105155. ACS/WFC ACCUM WFC2-ORAM FR462N 4487 CR-SPLIT=3 1 2100 S PATTERN 1 2 5+572313 PQ ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ SMMJ105155.5+572313 1 ACS/WFC ACCUM WFC F435W none none none 1 1 N/A SMMJ105155.5+572313 1 ACS/WFC ACCUM WFC F435W none none none 2 1 N/A SMMJ105155.5+572313 1 ACS/WFC ACCUM WFC F435W none none none 3 1 N/A SMMJ105155.5+572313 2 ACS/WFC ACCUM WFC2-ORA FR462N 4487 1 none none 1 2 N/A MPQ SMMJ105155.5+572313 2 ACS/WFC ACCUM WFC2-ORA FR462N 4487 1 none none 2 2 N/A MPQ SMMJ105155.5+572313 2 ACS/WFC ACCUM WFC2-ORA FR462N 4487 1 none none 3 2 N/A MPQ SMMJ105155.5+572313 2 ACS/WFC ACCUM WFC2-ORA FR462N 4487 2 none none 1 3 N/A MPQ SMMJ105155.5+572313 2 ACS/WFC ACCUM WFC2-ORA FR462N 4487 2 none none 2 3 N/A MPQ SMMJ105155.5+572313 2 ACS/WFC ACCUM WFC2-ORA FR462N 4487 2 none none 3 3 N/A MPQ SMMJ105155.5+572313 2 ACS/WFC ACCUM WFC2-ORA FR462N 4487 3 none none 1 4 N/A MPQ SMMJ105155.5+572313 2 ACS/WFC ACCUM WFC2-ORA FR462N 4487 3 none none 2 4 N/A MPQ SMMJ105155.5+572313 2 ACS/WFC ACCUM WFC2-ORA FR462N 4487 3 none none 3 4 N/A MPQ SMMJ105155.5+572313 2 ACS/WFC ACCUM WFC2-ORA FR462N 4487 4 none none 1 5 N/A MPQ SMMJ105155.5+572313 2 ACS/WFC ACCUM WFC2-ORA FR462N 4487 4 none none 2 5 N/A MPQ SMMJ105155.5+572313 2 ACS/WFC ACCUM WFC2-ORA FR462N 4487 4 none none 3 5 N/A MPQ 11582( 6) - 21-Oct-2009 14:52:25 - [ 9] Summary Form for Proposal 11582 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures WFC, WFC1-IRAMPQ, WFC1-MRAMPQ, WFC2-ORAMPQ ------------------------------------------------------------------------------------------------------------------------------------ Configurations ACS/WFC ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACCUM ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters CR-SPLIT=3 ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements LOW-SKY, PATTERN 1 2, PCS MODE FINE, SCHED 30% ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F435W, F475W, FR423N, FR462N, FR505N ------------------------------------------------------------------------------------------------------------------------------------ Target Names SMMJ02399-0136, SMMJ105155.5+572313, SMMJ163650.43+405734.5, SMMJ221726+0013 ------------------------------------------------------------------------------------------------------------------------------------