0 Assigned ID: 279 ----- Attempting Submission 1 (Thu Apr 10 22:27:10 GMT 2014) ----- HST Phase I Proposal 279 (j1414_cycle22.apt) successfully submitted. ----- Attempting Submission 2 (Fri Apr 11 19:05:57 GMT 2014) ----- HST Phase I Proposal 279 (j1414_cycle22.apt) successfully submitted. The number of orbits used exceeds the number allocated POS TARG & PATTERN should be used carefully with ACS ramp or WFC3 quad filters as central wavelengths & transmission efficiencies vary within the apertures. David Golimowski changed GROUP WITHIN constraints to ensure that visits A1-A4 occur within 14 days of visit 01. 1881396657 ----- Attempting Submission 1 (Tue Jul 22 19:06:22 GMT 2014) ----- HST Phase II Proposal 13762 (j1414_cycle22.apt) successfully submitted. ----- Attempting Submission 2 (Mon Sep 08 17:16:04 GMT 2014) ----- ----- Attempting Submission 3 (Thu Oct 02 19:43:12 GMT 2014) ----- HST Phase II Proposal 13762 (13762_bias.apt) successfully submitted. ----- Attempting Submission 4 (Thu Oct 02 20:48:52 GMT 2014) ----- New warnings pertain to the addition of internal orbits for subarray bias calibration. These orbits should be charged to the Cycle 22 ACS Calibration Program. A powerful starburst at z=5.4 with strong Lyman alpha emission: resolved SED with HST We serendipitously discovered the brightest galaxy known at z>5 as part of a faint quasar survey. LAEJ1414+5446 has extremely strong Lyman alpha emission and a bright stellar continuum, consistent with an unobscured star formation rate of ~300 Msun/yr. This object is uniquely suited for detailed studies of a powerful starburst galaxy near the epoch of reionization. Archival HST snapshot imaging in a single band (blueward of Lyman alpha) shows that the galaxy resolves into multiple emission components on 0.4'' scales. We propose multi-band imaging with ACS/WFC and WFC3/IR in order to fill out the spectral energy distribution (SED) at rest-frame UV wavelengths, while resolving the individual emission clumps. Combined with Spitzer observations, the UV SED will constrain the star formation activity, stellar population age, and dust extinction in an extremely luminous starburst at z>5. We will map the Lyman alpha emission in a narrow band and use SED modeling to estimate the escape fraction of ionizing photons. Constraints on the star formation activity and history of a potentially massive galaxy at z>5 will impact models of galaxy formation during the reionization epoch and provide clues to the star formation activity at higher redshift that is thought to drive reionization. This program will obtain ACS and WFC3 imaging of a bright, high-redshift galaxy with strong Lyman alpha emission. The primary goals are 1) spatially resolve the UV SED of the galaxy from 0.9um to 1.6um, obtaining a measurement of the UV continuum slope; 2) spatially map the strong Lyman alpha emission with a combination of narrow and broad band imaging; 3) obtain high-resolution, high-S/N images of nearby lensed arcs from a lensing group centered ~30" from the high-z galaxy. The ACS orbit is split between the F850LP bandpass to provide a continuum image, and the F792N ramp filter centered on the strong Lyman alpha emission at 7816Ang. The broadband image uses the WFC2-ORAMP aperture to align the pixels between the broad and narrow images. In order to obtain F850LP imaging of the lensed arcs ~30" from the target galaxy, we impose an orientation constraint of 215 degrees to 45 degrees, keeping the cluster center well within the WFC2 chip in the broadband image, while sacrificing only a small amount of visibility. Each filter has a pair of ~600s exposures with the ACS-WFC-DITHER-LINE pattern. The WFC3 orbit is split between F125W and F160W, using a 3-point dither pattern with 10x50s sampling sequence at each dither point. As the galaxy is centered on the chip no orientation restrictions are needed. CALIBRATION ORBITS: As per STScI policy, 4 internal orbits have been added to this proposal for the purpose of obtaining subarray bias frames that are contemporaneous with the science observations. These internal orbits will be charged to STScI's Cycle 22 ACS Calibration Program, not to GO 13762. The ACS Instrument Team at STScI is responsible for producing superbias reference files from the bias frames obtained in this GO proposal. COSMOLOGY 12 false false false false SUPPORTED GALAXY HIGH REDSHIFT GALAXY LYMAN ALPHA CLOUD STARBURST J2000 J2000 i(AB)=23.1 ACS/WFC RampFilter No No FR782N ACS/WFC Imaging No No F850LP WFC3/IR Imaging No No F125W WFC3/IR Imaging No No F160W POS-TARG DITHER 0.605 LINE false false 3 41.788 WFC3-IR-DITHER-LINE-3PT 5 false POS-TARG DITHER 1.265 LINE false false 3 130.28 ACS-WFC-DITHER-LINE 8 false Timing link suitability includes constraints ([Group (01 A1 A2 A3 A4) Within 14.0 days]) The scheduling data was generated by CASM 22.2. CASM was run in Phase II mode. (Tic-Visit :proposal-id 13762 :visit-id "01" :proposal-version -1 :trans-version "20140605" :date "02-Oct-2014 14:56:50.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 2 :saa-model "30" :si-bright-earth-limb-angle 20.0 :data-volume 2212384 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 13762 :visit-id "01" :obset-id "01" :pcs-mode "FGS" ) (Tic-Obset :proposal-id 13762 :visit-id "01" :obset-id "I1" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 13762 :visit-id "01" :orbit-number 1 :pcs-time 333 :si-vis-utilization 3059 :al-overhead-at-end 0 :internal-dur-at-end 347 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3409 :pcs-gap 0 ) (Tic-Orbit :proposal-id 13762 :visit-id "01" :orbit-number 2 :pcs-time 333 :si-vis-utilization 3070 :al-overhead-at-end 0 :internal-dur-at-end 500 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3409 :pcs-gap 0 ) false 2 0 Timing link suitability includes constraints ([Group (01 A1 A2 A3 A4) Within 14.0 days] [Sequence (A1 A2 A3 A4) within 1.0 days]) The scheduling data was generated by CASM 22.2. CASM was run in Phase II mode. WFC2-ORAMPQ subarray bias frames charged to Cycle 22 ACS Calibration Program. Avoid SAA passages; SAA-impacted orbits are usable. (Tic-Visit :proposal-id 13762 :visit-id "A1" :proposal-version -1 :trans-version "20140605" :date "02-Oct-2014 14:56:51.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "27" :si-bright-earth-limb-angle 0.0 :data-volume 421472 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 13762 :visit-id "A1" :obset-id "A1" :pcs-mode "GYRO" ) (Tic-Orbit :proposal-id 13762 :visit-id "A1" :orbit-number 1 :pcs-time 0 :si-vis-utilization 0 :al-overhead-at-end 0 :internal-dur-at-end 1783 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3222 :pcs-gap 0 ) false 1 0 Timing link suitability includes constraints ([Group (01 A1 A2 A3 A4) Within 14.0 days] [Sequence (A1 A2 A3 A4) within 1.0 days]) The scheduling data was generated by CASM 22.2. CASM was run in Phase II mode. WFC2-ORAMPQ subarray bias frames charged to Cycle 22 ACS Calibration Program. Avoid SAA passages; SAA-impacted orbits are usable. (Tic-Visit :proposal-id 13762 :visit-id "A2" :proposal-version -1 :trans-version "20140605" :date "02-Oct-2014 14:56:51.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "27" :si-bright-earth-limb-angle 0.0 :data-volume 421472 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 13762 :visit-id "A2" :obset-id "A2" :pcs-mode "GYRO" ) (Tic-Orbit :proposal-id 13762 :visit-id "A2" :orbit-number 1 :pcs-time 0 :si-vis-utilization 0 :al-overhead-at-end 0 :internal-dur-at-end 1783 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3222 :pcs-gap 0 ) false 1 0 Timing link suitability includes constraints ([Group (01 A1 A2 A3 A4) Within 14.0 days] [Sequence (A1 A2 A3 A4) within 1.0 days]) The scheduling data was generated by CASM 22.2. CASM was run in Phase II mode. WFC2-ORAMPQ subarray bias frames charged to Cycle 22 ACS Calibration Program. Avoid SAA passages; SAA-impacted orbits are usable. (Tic-Visit :proposal-id 13762 :visit-id "A3" :proposal-version -1 :trans-version "20140605" :date "02-Oct-2014 14:56:52.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "27" :si-bright-earth-limb-angle 0.0 :data-volume 421472 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 13762 :visit-id "A3" :obset-id "A3" :pcs-mode "GYRO" ) (Tic-Orbit :proposal-id 13762 :visit-id "A3" :orbit-number 1 :pcs-time 0 :si-vis-utilization 0 :al-overhead-at-end 0 :internal-dur-at-end 1783 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3222 :pcs-gap 0 ) false 1 0 Timing link suitability includes constraints ([Group (01 A1 A2 A3 A4) Within 14.0 days] [Sequence (A1 A2 A3 A4) within 1.0 days]) The scheduling data was generated by CASM 22.2. CASM was run in Phase II mode. WFC2-ORAMPQ subarray bias frames charged to Cycle 22 ACS Calibration Program. Avoid SAA passages; SAA-impacted orbits are usable. (Tic-Visit :proposal-id 13762 :visit-id "A4" :proposal-version -1 :trans-version "20140605" :date "02-Oct-2014 14:56:52.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "27" :si-bright-earth-limb-angle 0.0 :data-volume 421472 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 13762 :visit-id "A4" :obset-id "A4" :pcs-mode "GYRO" ) (Tic-Orbit :proposal-id 13762 :visit-id "A4" :orbit-number 1 :pcs-time 0 :si-vis-utilization 0 :al-overhead-at-end 0 :internal-dur-at-end 1783 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3222 :pcs-gap 0 ) false 1 0