0Assigned ID: 408
----- Attempting Submission 1 (Fri Apr 05 12:18:08 GMT 2019) -----
HST Phase I Proposal 408 (Cycle26_z10arc.apt) successfully submitted.
Receipt: # 408-1
----- Attempting Submission 2 (Fri Apr 05 12:19:31 GMT 2019) -----
HST Phase I Proposal 408 (Cycle26_z10arc.apt) successfully submitted.
Receipt: # 408-2
----- Attempting Submission 3 (Fri Apr 05 13:15:24 GMT 2019) -----
HST Phase I Proposal 408 (Cycle27_z10arc.apt) successfully submitted.
Receipt: # 408-3
----- Attempting Submission 4 (Fri Apr 05 18:37:55 GMT 2019) -----Removed ORIENT contraints1658255776----- Attempting Submission 1 (Thu Jul 25 22:07:19 GMT 2019) -----
HST Phase II Proposal 15920 (15920_2orients.apt) successfully submitted.
Receipt: # 15920-1
----- Attempting Submission 2 (Fri Jul 26 03:48:03 GMT 2019) -----
HST Phase II Proposal 15920 (15920_v2.apt) successfully submitted.
Receipt: # 15920-2
----- Attempting Submission 3 (Fri Jul 26 03:53:47 GMT 2019) -----
----- Attempting Submission 4 (Wed Aug 07 19:01:20 GMT 2019) -----RELICS: Unveiling the Most Distant Lensed Arc at z~10We propose 6 orbits of follow-up infrared imaging on one of the most exciting discoveries to come from the 188-orbit HST Treasury program RELICS: a candidate z~10 galaxy strongly lensed into a bright arc. Out of all of the existing HST and Spitzer imaging programs searching for distant galaxies, this z~10 candidate is unique by its large lensed size, offering the rare chance to resolve spatial structure in a galaxy just 500 Myr after the big bang. A recent ALMA search discovered a tentative 4-sigma detection of the [OIII] 88\micron\ fine structure line at z~10.2 (private communication), although deeper data are needed. However, the distinct spatial features and the two predicted lensed counter images are not discernible in the shallow HST RELICS discovery images.
Here we propose a total of 6 orbits of deeper WFC3/IR imaging (1 each in F105W and F125W, 2 each in F140W and F160W) to:
(1) reveal the extended arc morphology in more detail
(2) detect one or both lensed counter images, improving the lens model and producing geometric verification of the arc redshift
(3) deepen the imaging on the large number of lensed z~6-8 candidates (26 candidates, 2nd highest among all 41 RELICS cluster fields), improving constraints on the faint-end of the rest-UV luminosity function
This prolific lensing cluster and the z~10 arc promises to be favorite targets for JWST observations in Cycle 1 and beyond. This discovery of a z~10 galaxy bright enough for detailed and resolved study required a large search area of many lensing clusters and may not be replicated in JWST's lifetime.This program will obtain 6 orbits of WFC3/IR imaging of the galaxy cluster SPT0615-57. The imaging mostly overlaps the existing RELICS imaging, but is shifted to search for the z~10 counterimage.
We divide our 6 orbits among 4 IR filters:
F105W: 1 orbit
F125W: 1 orbit
F140W: 2 orbits
F160W: 2 orbits
Within each orbit, we will obtain 4 images in a single filter, using small dithers to optimally sample the PSF.
The orients were chosen to best overlap the existing RELICS HST imaging. However, EARLY SCHEDULING prior to the JWST call for proposal deadline is our priority, if possible. Therefore, we are willing to relax our orient contraints if necessary to obtain earlier schedulability.Our team as a whole is comprised of some of field's leading experts on high-redshift galaxies, strong gravitational lensing, supernovae, WFC3/IR data reduction, and galaxy evolution in general. Team members have experience modeling strong lensing clusters (Co-I's Paterno-Mahler, Bradac, Acebron, Sharon, Zitrin, Dawson, and Mahler), identifying faint high-redshift galaxies (PI Salmon and Co-I's Coe, Bradley, Trenti, Stark, Zitrin, Hoag, Mainali, Ouchi), detecting high-redshift galaxies in Keck and ALMA spectroscopy (Bradac, Oesch, Inoue, Hashimoto, Tamura), producing lumonisty functions (Oesch, Bradley), and studying spatially resolved lensing arcs (Zitrin). PI Salmon is an expert in high-redshift galaxy detections and SED fitting, with recent publications stufying the fields and arc of this proposal in detail. Co-I Coe is the PI of the RELICS program and an expert in very high-redshift galaxies. Co-I Bradley is the deputy PI of RELICS, and is an expert on lensing fields and high-redshift galaxies.CosmologyGalaxies and the IGM6falsefalsefalsefalsefalsefalsefalseSUPPORTEDCLUSTER OF GALAXIESGRAVITATIONAL LENSRICH CLUSTERJ2000J2000WFC3/IRImagingNoNoF105WWFC3/IRImagingNoNoF125WWFC3/IRImagingNoNoF140WWFC3/IRImagingNoNoF160WACS/WFCImagingNoNoF435WACS/WFCImagingNoNoF606WACS/WFCImagingNoNoF814WHst Same orient constraint links visits (01 02 03)The scheduling data was generated by CASM 27.2.CASM was run in Phase II mode./private/var/folders/ly/xztygm217pd97f4m_4srfbw0000132/T/OPVisit17431307881949182202.xml(Tic-Visit
:proposal-id 15920
:visit-id "01"
:proposal-version -1
:trans-version "20190514"
:date "07-Aug-2019 14:59:12.0"
: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 2228336
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 15920
:visit-id "01"
:obset-id "01"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 15920
:visit-id "01"
:orbit-number 1
:pcs-time 333
:si-vis-utilization 3049
:al-overhead-at-end 0
:internal-dur-at-end 0
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3389
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 15920
:visit-id "01"
:orbit-number 2
:pcs-time 302
:si-vis-utilization 3049
:al-overhead-at-end 0
:internal-dur-at-end 538
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3389
:pcs-gap 0
)true20Hst Same orient constraint links visits (01 02 03)The scheduling data was generated by CASM 27.2.CASM was run in Phase II mode./private/var/folders/ly/xztygm217pd97f4m_4srfbw0000132/T/OPVisit10587214339242845978.xml(Tic-Visit
:proposal-id 15920
:visit-id "02"
:proposal-version -1
:trans-version "20190514"
:date "07-Aug-2019 14:59:13.0"
: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 2228336
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 15920
:visit-id "02"
:obset-id "02"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 15920
:visit-id "02"
:orbit-number 1
:pcs-time 333
:si-vis-utilization 3040
:al-overhead-at-end 0
:internal-dur-at-end 0
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3389
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 15920
:visit-id "02"
:orbit-number 2
:pcs-time 302
:si-vis-utilization 3040
:al-overhead-at-end 0
:internal-dur-at-end 538
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3389
:pcs-gap 0
)true20Hst Same orient constraint links visits (01 02 03)The scheduling data was generated by CASM 27.2.CASM was run in Phase II mode./private/var/folders/ly/xztygm217pd97f4m_4srfbw0000132/T/OPVisit2636928205398811892.xml(Tic-Visit
:proposal-id 15920
:visit-id "03"
:proposal-version -1
:trans-version "20190514"
:date "07-Aug-2019 14:59:15.0"
: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 2228336
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 15920
:visit-id "03"
:obset-id "03"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 15920
:visit-id "03"
:orbit-number 1
:pcs-time 333
:si-vis-utilization 3040
:al-overhead-at-end 0
:internal-dur-at-end 0
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3389
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 15920
:visit-id "03"
:orbit-number 2
:pcs-time 302
:si-vis-utilization 3040
:al-overhead-at-end 0
:internal-dur-at-end 538
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3389
:pcs-gap 0
)true20