I retrieved the propoasl from STScI on Nov 2, 2009. The only change was to replace old visit 25 with new visit 91. By rearranging some of the primary+parallels containers ( i.e., only having a single primary and single parallel in each container) I was able to add dithers to the observations, ----- Attempting Submission 1 (Thu Jul 03 19:08:47 GMT 2008) ----- ----- Attempting Submission 2 (Thu Jun 18 19:00:30 GMT 2009) ----- Phase II Proposal 11577 (11577_whitmore_riess_june_15_09.apt) successfully submitted. ----- Attempting Submission 3 (Mon Jun 22 17:04:48 GMT 2009) ----- ----- Attempting Submission 4 (Tue Nov 03 17:11:55 GMT 2009) ----- All the warnings look benign. Fixed some orientations in this version, and a few minor edits to jutification. Assigned ID: 265 ----- Attempting Submission 1 (Fri Mar 07 03:43:12 GMT 2008) ----- Phase I Proposal 265 (antennae_cycle17_mar_7_08.apt) successfully submitted. ----- Attempting Submission 2 (Fri Mar 07 14:16:38 GMT 2008) ----- Phase I Proposal 265 (antennae_cycle17_mar_7_08.apt) successfully submitted. Opening New Windows on the Antennae with WFC3 We propose to use WFC3 to provide key observations of young star clusters in "The Antennae" (NGC4038/39). Of prime importance is the WFC3's ability to push the limiting UV magnitude FIVE mag deeper than our previous WFPC2 observations. This corresponds to pushing the limiting cluster mass from ~10**5 to ~10**3 solar masses for cluster ages ~10**8 yrs. In addition, the much wider field of view of the WFC3 IR channel will allow us to map out both colliding disks rather than just the Overlap Region between them. This will be especially important for finding the youngest clusters that are still embedded in their placental cocoons. The extensive set of narrow-band filters will provide an effective means for determining the properties of shocks, which are believed to be a primary triggering mechanism for star formation. We will also use ACS in parallel with WFC3 to observe portions of both the northern and southern tails at no additional orbital cost. Finally, one additional primary WFC3 orbit will be used to supplement exisiting HST observations of the star-forming "dwarf" galaxy at the end of the southern tail. Hence, when completed we will have full UBVI + H_alpha coverage (or more for the main galaxy) of four different environments in the Antennae. In conjunction with the extensive multi-wavelength database we have collected (both HST and ground-based) these observations will provide answers to fundamental questions such as: How do these clusters form and evolve? How is star formation triggered? How do star clusters affect the local and global ISM, and the evolution of the galaxy as a whole? The Antennae galaxies are the nearest example of a major disk--disk merger, and hence may represent our best chance for understanding how mergers form tremendous numbers of clusters and stars, both in the local universe and during galaxy assembly at high redshift.
We are imaging the main body of the Antennae galaxies with WFC3 UV and IR filters, both broad and narrow-band. We are also imaging a portion of the North tail, the South tail, and the tidal dwarf with BVRI and Halpha filters, in order to sample different environments in this interesting system. Broad-band exposure times have been set to reach star clusters with ages of a ~10^8 yr down to ~10^3 solar masses. Narrow-band exposure times were scaled from our previous HST observations of a metal-rich galaxy. Whenever possible, we use a 4-point dither pattern, although in order to pack the orbits and incorporate parallels, we use 3-point dithers most of the time. visit #orbits instrument/filters parallels notes 10 2 WFC3/336 BVIHa (S tail) 12 2 WFC3/336 BVIHa (S tail) 22 5 WFC3/110,160 VR (S tail) 25 2 WFC3/128N, 164N some para of S tail 90 2 WFC3/487N+673N no para 31 1 ACS/502N WFC3/336W of N tail -- slightly shorter observing window 32 1 WFC3/336 S. tidal dwarf 33 1 WFC3/336 S. tail 34 1 ACS/435,555,814 N. tail UNRESOLVED STELLAR POPULATIONS AND GALAXY STRUCTURE 12 false 0.0 0.0 false false false false false false SUPPORTED GALAXY INTERACTING GALAXY This object was generated by the targetselector and retrieved from the NED database. J2000 12 01 53.0000 -18 52 20.00 J2000 GALAXY INTERACTING GALAXY This object was generated by the targetselector and retrieved from the NED database. J2000 12 01 53.0000 -18 52 20.00 J2000 GALAXY INTERACTING GALAXY This object was generated by the targetselector and retrieved from the NED database. J2000 12 01 53.0000 -18 52 20.00 J2000 GALAXY INTERACTING GALAXY This object was generated by the targetselector and retrieved from the NED database. J2000 12 01 53.0000 -18 52 20.00 J2000 GALAXY INTERACTING GALAXY This object was generated by the targetselector and retrieved from the NED database. J2000 12 01 53.0000 -18 52 20.00 J2000 GALAXY INTERACTING GALAXY This object was generated by the targetselector and retrieved from the NED database. J2000 12 01 53.0000 -18 52 20.00 J2000 GALAXY INTERACTING GALAXY This object was generated by the targetselector and retrieved from the NED database. J2000 12 01 53.0000 -18 52 20.00 J2000 GALAXY INTERACTING GALAXY This object was generated by the targetselector and retrieved from the NED database. J2000 12 01 53.0000 -18 52 20.00 J2000 GALAXY INTERACTING GALAXY This object was generated by the targetselector and retrieved from the NED database. J2000 12 01 53.0000 -18 52 20.00 J2000 GALAXY TIDAL TAIL J2000 12 01 53.2000 -19 00 26.00 J2000 GALAXY INTERACTING GALAXY This object was generated by the targetselector and retrieved from the NED database. J2000 12 01 53.0000 -18 52 20.00 J2000 WFC3/UVIS Imaging No No F336W WFC3/IR Imaging No No F110W WFC3/IR Imaging No No F160W WFC3/UVIS Imaging No No F487N WFC3/UVIS Imaging No No F673N WFC3/IR Imaging No No F128N WFC3/IR Imaging No No F164N ACS/WFC Imaging No No F502N ACS/WFC Imaging No No F502N WFC3/UVIS Imaging No No F336W WFC3/UVIS Imaging No No F336W ACS/WFC Imaging No No F435W ACS/WFC Imaging No No F550M ACS/WFC Imaging No No F814W ACS/WFC Imaging No No F658N ACS/WFC Imaging No No F435W ACS/WFC Imaging No No F550M ACS/WFC Imaging No No F814W ACS/WFC Imaging No No F658N WFC3/UVIS Imaging No No F336W POS-TARG DITHER 0.572 LINE 0.365 false false 74.653 4 18.528 WFC3-IR-DITHER-BOX-MIN 1 false POS-TARG DITHER 3.011 LINE false false 2 85.28 ACS-WFC-DITHER-LINE 2 false POS-TARG DITHER 0.145 LINE false false 2 46.84 WFC3-UVIS-DITHER-LINE 5 false The scheduling data was generated by CASM 17.2. CASM was run in Phase II mode. /private/tmp/OPVisit7729027493312217496.xml WFC3/F336W imaging of NGC 4038 -- pointing 1, S tail BVIHa in parallwl (Tic-Visit :proposal-id 11577 :visit-id "10" :proposal-version -1 :trans-version "20090702" :date "03-Nov-2009 11:48:14.0" :trans-errors '(:WARNINGS 1 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 2 :saa-model "29" :si-bright-earth-limb-angle 20.0 :data-volume 3717520 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 11577 :visit-id "10" :obset-id "10" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 11577 :visit-id "10" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2924 :al-overhead-at-end 118 :internal-dur-at-end 670 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3257 :pcs-gap 0 ) (Tic-Orbit :proposal-id 11577 :visit-id "10" :orbit-number 2 :pcs-time 222 :si-vis-utilization 3052 :al-overhead-at-end 116 :internal-dur-at-end 1019 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3257 :pcs-gap 0 ) true 2 1 The scheduling data was generated by CASM 17.2. CASM was run in Phase II mode. /private/tmp/OPVisit4747259658398987700.xml WFC3/F336W imaging of NGC 4038 -- pointing 2 (Tic-Visit :proposal-id 11577 :visit-id "12" :proposal-version -1 :trans-version "20090702" :date "03-Nov-2009 11:48:18.0" :trans-errors '(:WARNINGS 1 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 2 :saa-model "29" :si-bright-earth-limb-angle 20.0 :data-volume 3717520 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 11577 :visit-id "12" :obset-id "12" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 11577 :visit-id "12" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2912 :al-overhead-at-end 118 :internal-dur-at-end 670 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3257 :pcs-gap 0 ) (Tic-Orbit :proposal-id 11577 :visit-id "12" :orbit-number 2 :pcs-time 222 :si-vis-utilization 3060 :al-overhead-at-end 116 :internal-dur-at-end 1019 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3257 :pcs-gap 0 ) true 2 1 The scheduling data was generated by CASM 17.2. CASM was run in Phase II mode. /private/tmp/OPVisit5651160779134261770.xml WFC3/J, H imaging of NGC 4038 -- do parallels of S tail in different filters than BVIHa NOTE: - June 18, 2009) Two orbits were added to this visit due to the duplication issue with 11962 (i.e., added two orbits here and 11962 removed 3 orbits). (Tic-Visit :proposal-id 11577 :visit-id "20" :proposal-version -1 :trans-version "20090702" :date "03-Nov-2009 11:48:27.0" :trans-errors '(:WARNINGS 3 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 5 :saa-model "29" :si-bright-earth-limb-angle 20.0 :data-volume 6882928 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 11577 :visit-id "20" :obset-id "20" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 11577 :visit-id "20" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2924 :al-overhead-at-end 0 :internal-dur-at-end 90 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3257 :pcs-gap 0 ) (Tic-Orbit :proposal-id 11577 :visit-id "20" :orbit-number 2 :pcs-time 222 :si-vis-utilization 3061 :al-overhead-at-end 0 :internal-dur-at-end 90 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3257 :pcs-gap 0 ) (Tic-Orbit :proposal-id 11577 :visit-id "20" :orbit-number 3 :pcs-time 222 :si-vis-utilization 3061 :al-overhead-at-end 0 :internal-dur-at-end 349 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3257 :pcs-gap 0 ) (Tic-Orbit :proposal-id 11577 :visit-id "20" :orbit-number 4 :pcs-time 222 :si-vis-utilization 2977 :al-overhead-at-end 0 :internal-dur-at-end 349 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3257 :pcs-gap 0 ) (Tic-Orbit :proposal-id 11577 :visit-id "20" :orbit-number 5 :pcs-time 222 :si-vis-utilization 3062 :al-overhead-at-end 0 :internal-dur-at-end 584 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3257 :pcs-gap 0 ) true 5 3 The scheduling data was generated by CASM 17.2. CASM was run in Phase II mode. /private/tmp/OPVisit266845333353918092.xml WFC3/128N+164N imaging of NGC 4038 + BVIHa of S tail (overlapping but somewhat different than visits10 and 12) (Tic-Visit :proposal-id 11577 :visit-id "91" :proposal-version -1 :trans-version "20090702" :date "03-Nov-2009 12:00:58.0" :trans-errors '(:WARNINGS 4 :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 3805792 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 11577 :visit-id "91" :obset-id "91" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 11577 :visit-id "91" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2924 :al-overhead-at-end 0 :internal-dur-at-end 546 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3257 :pcs-gap 0 ) (Tic-Orbit :proposal-id 11577 :visit-id "91" :orbit-number 2 :pcs-time 222 :si-vis-utilization 3030 :al-overhead-at-end 0 :internal-dur-at-end 884 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3257 :pcs-gap 0 ) true 2 0 The scheduling data was generated by CASM 17.2. CASM was run in Phase II mode. /private/tmp/OPVisit6279763043230091234.xml WFC3/487N+673N imaging of NGC 4038 -- no parallels (Tic-Visit :proposal-id 11577 :visit-id "90" :proposal-version -1 :trans-version "20090702" :date "03-Nov-2009 11:48:36.0" :trans-errors '(:WARNINGS 1 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 2 :saa-model "29" :si-bright-earth-limb-angle 20.0 :data-volume 2309984 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 11577 :visit-id "90" :obset-id "90" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 11577 :visit-id "90" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2921 :al-overhead-at-end 116 :internal-dur-at-end 0 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3257 :pcs-gap 0 ) (Tic-Orbit :proposal-id 11577 :visit-id "90" :orbit-number 2 :pcs-time 222 :si-vis-utilization 3061 :al-overhead-at-end 116 :internal-dur-at-end 670 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3257 :pcs-gap 0 ) true 2 1 The scheduling data was generated by CASM 17.2. CASM was run in Phase II mode. /private/tmp/OPVisit6772212966834548957.xml ACS/502N imaging of NGC 4038 -- parallel of N tail w/WFC3/336 (Tic-Visit :proposal-id 11577 :visit-id "31" :proposal-version -1 :trans-version "20090702" :date "03-Nov-2009 11:48:37.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "29" :si-bright-earth-limb-angle 20.0 :data-volume 1718912 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 11577 :visit-id "31" :obset-id "31" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 11577 :visit-id "31" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2700 :al-overhead-at-end 0 :internal-dur-at-end 1019 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3257 :pcs-gap 0 ) true 1 0 The scheduling data was generated by CASM 17.2. CASM was run in Phase II mode. /private/tmp/OPVisit4119893665240365511.xml WFC3/336W imaging of tidal dwarf (Tic-Visit :proposal-id 11577 :visit-id "32" :proposal-version -1 :trans-version "20090702" :date "03-Nov-2009 11:48:38.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "29" :si-bright-earth-limb-angle 20.0 :data-volume 866240 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 11577 :visit-id "32" :obset-id "32" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 11577 :visit-id "32" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2664 :al-overhead-at-end 116 :internal-dur-at-end 354 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3257 :pcs-gap 0 ) true 1 0 The scheduling data was generated by CASM 17.2. CASM was run in Phase II mode. /private/tmp/OPVisit5839895663965380481.xml WFC3/336W imaging of S tail (Tic-Visit :proposal-id 11577 :visit-id "33" :proposal-version -1 :trans-version "20090702" :date "03-Nov-2009 11:48:39.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "29" :si-bright-earth-limb-angle 20.0 :data-volume 866240 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 11577 :visit-id "33" :obset-id "33" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 11577 :visit-id "33" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2922 :al-overhead-at-end 116 :internal-dur-at-end 354 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3257 :pcs-gap 0 ) true 1 0 The scheduling data was generated by CASM 17.2. CASM was run in Phase II mode. /private/tmp/OPVisit6841739280502633796.xml ACS/BVI imaging of N tail (Tic-Visit :proposal-id 11577 :visit-id "34" :proposal-version -1 :trans-version "20090702" :date "03-Nov-2009 11:48:40.0" :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 20.0 :data-volume 1421120 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 11577 :visit-id "34" :obset-id "34" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 11577 :visit-id "34" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2904 :al-overhead-at-end 0 :internal-dur-at-end 349 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3257 :pcs-gap 0 ) true 1 0