Strongly Lensed Dusty Star Forming Galaxies: Probing the Physics of Massive Galaxy Formation

Strongly Lensed Dusty Star Forming Galaxies: Probing the Physics of Massive Galaxy Formation The South Pole Telescope (SPT) has recently discovered a new population of extraordinarily millimeter-bright objects in a deep, 1300-square-degree survey of the southern sky. Our extensive two-year follow-up campaign to investigate the nature of these objects has demonstrated that they are high-redshift, strongly lensed, dusty, star-forming galaxies (DSFGs). Gravitational lensing magnifies these sources by factors of 10 to 100, providing a unique opportunity to study these objects in greater detail and at lower cost than would otherwise be possible. We propose to obtain two-color WFC3 imaging for a representative sample of 18 SPT sources, all of which have precise positions from millimeter interferometers and deep near-infrared (NIR) imaging with Spitzer/IRAC and/or ground-based facilities. HST imaging is the only way to achieve the angular resolution and sensitivity required to separate NIR emission from the lensed galaxies from the much brighter lenses. These observations are essential to using these objects to probe extreme galaxy formation processes in the early universe---from these data and ground-based redshifts we will construct the lens models needed to determine the intrinsic properties of the sources and the spatial extent of the star formation activity. Only through the unique capabilities of Hubble can we interpret our other observations and fully exploit the magnified view of the early universe afforded by these objects.

We are observing 18 targets for 1 orbit each with WFC3. Each orbit will be split (roughly) equally between F110W and F160W. We will implement dithering optimised for maximum reoslution. COSMOLOGY 12 false 0.0 14.0 0.0 false false false false SUPPORTED GALAXY ULTRALUMINOUS IR GAL J2000 J2000 S_1.4mm = 47.9 mJy GALAXY ULTRALUMINOUS IR GAL J2000 J2000 S_1.4mm = 44.5 mJy GALAXY ULTRALUMINOUS IR GAL J2000 J2000 S_1.4mm = 38.6 mJy GALAXY ULTRALUMINOUS IR GAL J2000 J2000 S_1.4mm = 36.3 mJy GALAXY ULTRALUMINOUS IR GAL J2000 J2000 S_1.4mm = 32.8 mJy GALAXY ULTRALUMINOUS IR GAL J2000 J2000 S_1.4mm = 31.3 mJy GALAXY ULTRALUMINOUS IR GAL J2000 J2000 S_1.4mm = 30.8 mJy GALAXY ULTRALUMINOUS IR GAL J2000 J2000 S_1.4mm = 30.6 mJy GALAXY ULTRALUMINOUS IR GAL J2000 J2000 S_1.4mm = 28.4 mJy GALAXY ULTRALUMINOUS IR GAL J2000 J2000 S_1.4mm = 28.4 mJy GALAXY ULTRALUMINOUS IR GAL J2000 J2000 S_1.4mm = 28.1 mJy GALAXY ULTRALUMINOUS IR GAL J2000 J2000 S_1.4mm = 25.3 mJy GALAXY ULTRALUMINOUS IR GAL J2000 J2000 S_1.4mm = 25.0 mJy GALAXY ULTRALUMINOUS IR GAL J2000 J2000 S_1.4mm = 22.6 mJy GALAXY ULTRALUMINOUS IR GAL J2000 J2000 S_1.4mm = 21.7 mJy GALAXY ULTRALUMINOUS IR GAL J2000 J2000 S_1.4mm = 21.0 mJy GALAXY ULTRALUMINOUS IR GAL J2000 J2000 S_1.4mm = 19.5 mJy GALAXY ULTRALUMINOUS IR GAL J2000 J2000 S_1.4mm = 42.2 mJy WFC3/IR Imaging No No F110W WFC3/IR Imaging No No F160W WFC3/IR Imaging No No F110W WFC3/IR Imaging No No F160W WFC3/IR Imaging No No F110W WFC3/IR Imaging No No F160W WFC3/IR Imaging No No F110W WFC3/IR Imaging No No F160W WFC3/IR Imaging No No F110W WFC3/IR Imaging No No F160W WFC3/IR Imaging No No F110W WFC3/IR Imaging No No F160W WFC3/IR Imaging No No F110W WFC3/IR Imaging No No F160W WFC3/IR Imaging No No F110W WFC3/IR Imaging No No F160W WFC3/IR Imaging No No F110W WFC3/IR Imaging No No F160W WFC3/IR Imaging No No F110W WFC3/IR Imaging No No F160W WFC3/IR Imaging No No F110W WFC3/IR Imaging No No F160W WFC3/IR Imaging No No F110W WFC3/IR Imaging No No F160W WFC3/IR Imaging No No F110W WFC3/IR Imaging No No F160W WFC3/IR Imaging No No F110W WFC3/IR Imaging No No F160W WFC3/IR Imaging No No F110W WFC3/IR Imaging No No F160W WFC3/IR Imaging No No F110W WFC3/IR Imaging No No F160W WFC3/IR Imaging No No F110W WFC3/IR Imaging No No F160W WFC3/IR Imaging No No F110W WFC3/IR Imaging No No F160W POS-TARG DITHER 0.572 LINE 0.365 false false 74.653 4 18.528 WFC3-IR-DITHER-BOX-MIN 1

false

The scheduling data was generated by CASM 19.3. CASM was run in Phase II mode. (Tic-Visit :proposal-id 12659 :visit-id "01" :proposal-version -1 :trans-version "20110509" :date "07-Jul-2011 16:40:32.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "30" :si-bright-earth-limb-angle 20.0 :data-volume 1671264 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 12659 :visit-id "01" :obset-id "01" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 12659 :visit-id "01" :orbit-number 1 :pcs-time 333 :si-vis-utilization 3076 :al-overhead-at-end 0 :internal-dur-at-end 673 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3445 :pcs-gap 0 ) false 1 0 The scheduling data was generated by CASM 19.3. CASM was run in Phase II mode. (Tic-Visit :proposal-id 12659 :visit-id "02" :proposal-version -1 :trans-version "20110509" :date "07-Jul-2011 16:48:41.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "30" :si-bright-earth-limb-angle 20.0 :data-volume 1671264 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 12659 :visit-id "02" :obset-id "02" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 12659 :visit-id "02" :orbit-number 1 :pcs-time 333 :si-vis-utilization 3076 :al-overhead-at-end 0 :internal-dur-at-end 673 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3445 :pcs-gap 0 ) true 1 0 The scheduling data was generated by CASM 19.3. CASM was run in Phase II mode. (Tic-Visit :proposal-id 12659 :visit-id "03" :proposal-version -1 :trans-version "20110509" :date "07-Jul-2011 16:53:21.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "30" :si-bright-earth-limb-angle 20.0 :data-volume 1601632 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 12659 :visit-id "03" :obset-id "03" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 12659 :visit-id "03" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2976 :al-overhead-at-end 0 :internal-dur-at-end 635 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3391 :pcs-gap 0 ) true 1 0 The scheduling data was generated by CASM 19.3. CASM was run in Phase II mode. (Tic-Visit :proposal-id 12659 :visit-id "04" :proposal-version -1 :trans-version "20110509" :date "07-Jul-2011 16:54:51.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "30" :si-bright-earth-limb-angle 20.0 :data-volume 1601632 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 12659 :visit-id "04" :obset-id "04" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 12659 :visit-id "04" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2976 :al-overhead-at-end 0 :internal-dur-at-end 635 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3391 :pcs-gap 0 ) true 1 0 The scheduling data was generated by CASM 19.3. CASM was run in Phase II mode. (Tic-Visit :proposal-id 12659 :visit-id "05" :proposal-version -1 :trans-version "20110811" :date "23-Sep-2011 17:00:53.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "30" :si-bright-earth-limb-angle 20.0 :data-volume 1601632 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 12659 :visit-id "05" :obset-id "05" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 12659 :visit-id "05" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2976 :al-overhead-at-end 0 :internal-dur-at-end 635 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3391 :pcs-gap 0 ) false 1 0 The scheduling data was generated by CASM 19.3. CASM was run in Phase II mode. 1318089311000 289.5452072553084 (Tic-Visit :proposal-id 12659 :visit-id "06" :proposal-version -1 :trans-version "20110509" :date "07-Jul-2011 16:49:06.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "30" :si-bright-earth-limb-angle 20.0 :data-volume 1671264 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 12659 :visit-id "06" :obset-id "06" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 12659 :visit-id "06" :orbit-number 1 :pcs-time 333 :si-vis-utilization 3076 :al-overhead-at-end 0 :internal-dur-at-end 673 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3445 :pcs-gap 0 ) true 1 0 The scheduling data was generated by CASM 19.3. CASM was run in Phase II mode. (Tic-Visit :proposal-id 12659 :visit-id "07" :proposal-version -1 :trans-version "20110509" :date "07-Jul-2011 16:54:54.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "30" :si-bright-earth-limb-angle 20.0 :data-volume 1601632 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 12659 :visit-id "07" :obset-id "07" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 12659 :visit-id "07" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2976 :al-overhead-at-end 0 :internal-dur-at-end 635 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3391 :pcs-gap 0 ) true 1 0 The scheduling data was generated by CASM 19.3. CASM was run in Phase II mode. (Tic-Visit :proposal-id 12659 :visit-id "08" :proposal-version -1 :trans-version "20110509" :date "07-Jul-2011 16:54:55.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "30" :si-bright-earth-limb-angle 20.0 :data-volume 1601632 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 12659 :visit-id "08" :obset-id "08" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 12659 :visit-id "08" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2976 :al-overhead-at-end 0 :internal-dur-at-end 635 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3391 :pcs-gap 0 ) true 1 0 The scheduling data was generated by CASM 19.3. CASM was run in Phase II mode. (Tic-Visit :proposal-id 12659 :visit-id "09" :proposal-version -1 :trans-version "20110509" :date "07-Jul-2011 16:49:10.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "30" :si-bright-earth-limb-angle 20.0 :data-volume 1671264 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 12659 :visit-id "09" :obset-id "09" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 12659 :visit-id "09" :orbit-number 1 :pcs-time 333 :si-vis-utilization 3076 :al-overhead-at-end 0 :internal-dur-at-end 673 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3445 :pcs-gap 0 ) true 1 0 The scheduling data was generated by CASM 19.3. CASM was run in Phase II mode. (Tic-Visit :proposal-id 12659 :visit-id "10" :proposal-version -1 :trans-version "20110509" :date "07-Jul-2011 16:54:56.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "30" :si-bright-earth-limb-angle 20.0 :data-volume 1601632 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 12659 :visit-id "10" :obset-id "10" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 12659 :visit-id "10" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2976 :al-overhead-at-end 0 :internal-dur-at-end 635 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3391 :pcs-gap 0 ) true 1 0 The scheduling data was generated by CASM 19.3. CASM was run in Phase II mode. 1318096038000 286.0595664691836 (Tic-Visit :proposal-id 12659 :visit-id "11" :proposal-version -1 :trans-version "20110509" :date "07-Jul-2011 16:49:12.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "30" :si-bright-earth-limb-angle 20.0 :data-volume 1671264 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 12659 :visit-id "11" :obset-id "11" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 12659 :visit-id "11" :orbit-number 1 :pcs-time 333 :si-vis-utilization 3076 :al-overhead-at-end 0 :internal-dur-at-end 673 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3445 :pcs-gap 0 ) true 1 0 The scheduling data was generated by CASM 19.3. CASM was run in Phase II mode. 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(Tic-Visit :proposal-id 12659 :visit-id "14" :proposal-version -1 :trans-version "20110509" :date "07-Jul-2011 16:49:16.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "30" :si-bright-earth-limb-angle 20.0 :data-volume 1671264 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 12659 :visit-id "14" :obset-id "14" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 12659 :visit-id "14" :orbit-number 1 :pcs-time 333 :si-vis-utilization 3076 :al-overhead-at-end 0 :internal-dur-at-end 673 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3445 :pcs-gap 0 ) true 1 0 The scheduling data was generated by CASM 19.3. CASM was run in Phase II mode. (Tic-Visit :proposal-id 12659 :visit-id "15" :proposal-version -1 :trans-version "20110509" :date "07-Jul-2011 16:49:17.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "30" :si-bright-earth-limb-angle 20.0 :data-volume 1671264 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 12659 :visit-id "15" :obset-id "15" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 12659 :visit-id "15" :orbit-number 1 :pcs-time 333 :si-vis-utilization 3076 :al-overhead-at-end 0 :internal-dur-at-end 673 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3445 :pcs-gap 0 ) true 1 0 The scheduling data was generated by CASM 19.3. CASM was run in Phase II mode. 1318104619000 286.7324799115806 (Tic-Visit :proposal-id 12659 :visit-id "16" :proposal-version -1 :trans-version "20110509" :date "07-Jul-2011 16:49:18.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "30" :si-bright-earth-limb-angle 20.0 :data-volume 1671264 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 12659 :visit-id "16" :obset-id "16" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 12659 :visit-id "16" :orbit-number 1 :pcs-time 333 :si-vis-utilization 3076 :al-overhead-at-end 0 :internal-dur-at-end 673 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3445 :pcs-gap 0 ) true 1 0 The scheduling data was generated by CASM 19.3. CASM was run in Phase II mode. (Tic-Visit :proposal-id 12659 :visit-id "17" :proposal-version -1 :trans-version "20110509" :date "08-Jul-2011 05:58:15.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "30" :si-bright-earth-limb-angle 20.0 :data-volume 1740896 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 12659 :visit-id "17" :obset-id "17" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 12659 :visit-id "17" :orbit-number 1 :pcs-time 333 :si-vis-utilization 3176 :al-overhead-at-end 0 :internal-dur-at-end 692 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3511 :pcs-gap 0 ) true 1 0 The scheduling data was generated by CASM 19.3. CASM was run in Phase II mode. 1318110607000 289.9553998850304 (Tic-Visit :proposal-id 12659 :visit-id "18" :proposal-version -1 :trans-version "20110509" :date "07-Jul-2011 16:49:20.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "30" :si-bright-earth-limb-angle 20.0 :data-volume 1671264 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 12659 :visit-id "18" :obset-id "18" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 12659 :visit-id "18" :orbit-number 1 :pcs-time 333 :si-vis-utilization 3076 :al-overhead-at-end 0 :internal-dur-at-end 673 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3445 :pcs-gap 0 ) true 1 0