0 Assigned ID: 579 ----- Attempting Submission 1 (Fri Mar 06 17:30:43 GMT 2020) ----- HST Phase I Proposal 579 successfully submitted. Receipt: # 579-1 ----- Attempting Submission 2 (Tue Mar 10 23:27:32 GMT 2020) ----- HST Phase I Proposal 579 successfully submitted. Receipt: # 579-2 ----- Attempting Submission 3 (Wed Mar 11 20:25:57 GMT 2020) ----- HST Phase I Proposal 579 successfully submitted. Receipt: # 579-3 ----- Attempting Submission 4 (Thu Mar 12 18:37:05 GMT 2020) ----- We fulfilled what our Contact Scientist Linda Dressel suggested to us and resubmitted the Proposal. ############################## Il giorno gio 27 gen 2022 alle ore 00:00 Linda Dressel <dressel@stsci.edu> ha scritto: Luigi and Michele, The date ranges for your visits are very short, so it is important not to let the visits be divided into two orbits and risk a failure to reacquire the guide stars. You can prevent that by putting the exposures in each visit into a SEQ NON-INT container. If you haven't done this before, see https://www.stsci.edu/scientific-community/software/astronomers-proposal-tool-apt/hst-training-materials. Click on the text or movie for Creating Non-interruptible Exposure Sequences, listed under Phase II Specific APT Training Materials. To put all of your exposures into a SEQ NON-INT container, do the following: Retrieve the phase II proposal from STScI. Click on the visit number in the left side bar of the APT screen. Click on New above the left side bar and select New Sequence. Sequence Non-int appears at the end of the exposures. Click on it and drag it to the top of the visit. Click on each exposure and drag it into Sequence Non-Int. Click on Prime + Parallel Group and drag it into Sequence Non-Int. Open the menu for each exposure until you get to Exp #. Type 1 into the Orbit Number on the APT screen. You can then run the Orbit Planner and see that the visit still fits the APT orbit. Regards, Linda 1533581342 ----- Attempting Submission 1 (Wed Jun 24 09:31:53 GMT 2020) ----- ----- Attempting Submission 2 (Mon Jan 31 09:41:31 GMT 2022) ----- The radial chromosomic map of Omega Centauri A complete characterization of the spatial distributions of the different multiple stellar populations in Omega Centauri is of fundamental importance to study their formation and dynamical history. Recent studies have revealed a very complex picture of this cluster and found the presence of 15 different sub-populations groups. While previous studies have found a radial gradient in the number fraction of the two major groups of stellar populations, nothing is known about the radial variation of all the other groups of sub-populations. Studies of all the sub-populations are available in the core (from the literature) and in the outermost regions (from HST archival observations) of the cluster, while data in the intermediate regions are missing. These intermediate regions are those where the strongest radial gradient of the two major groups of stars has been found and they are thus essential to explore possible structural differences between all the different sub-groups. Here we propose to collect the missing observations needed to separate and identify all the sub-groups multiple populations in these intermediate regions. This will give us the opportunity to obtain the necessary radial coverage to trace for the first time the radial gradient of all the multiple populations along almost the entire cluster. Such a major improvement requires a relatively modest investment of only two additional HST orbits. The observations consist in a short image, ~20 s, at the beggining of each orbit, and six ~350 s deep exposure (four in the F814W filter and two in the F606W filter) per orbit. WFC3/UVIS will be used as the primary camera, while ACS/WFC will image the parallel field with one ~110 s exposure in the F606W filter per orbit. + Michele Scalco has just started his PhD, and the proposed material will be at the basis of his thesis. + Dr. Luigi Bedin is an expert of stellar populations in globular cluster and has an extensive knowledge of HST data reduction and analysis. He was involved in several HST programs on globular cluster, both as a PI and as a Co-I. He is PI of three HST large programms. + Dr. Enrico Vesperini is an expert of theoretical and computational stellar dynamics, and in different aspect of the formation and dynamical evolution of globular star clusters and globular cluster systems. Stellar Populations and the Interstellar Medium 6 false false false false false false false SUPPORTED STELLAR CLUSTER GLOBULAR CLUSTER This object was generated by the targetselector and retrieved from the SIMBAD database. J2000 J2000 STELLAR CLUSTER GLOBULAR CLUSTER This object was generated by the targetselector and retrieved from the SIMBAD database. J2000 J2000 WFC3/UVIS Imaging No No F814W WFC3/UVIS Imaging No No F814W ACS/WFC Imaging No No F814W ACS/WFC Imaging No No F606W ACS/WFC Imaging No No F814W ACS/WFC Imaging No No F606W The scheduling data was generated by CASM 29.0. CASM was run in Phase II mode. /tmp/OPVisit3312322324835098688.xml (Tic-Visit :proposal-id 16247 :visit-id "01" :proposal-version -1 :trans-version "20200619" :date "31-Jan-2022 10:29:04.0" :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 2305472 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 16247 :visit-id "01" :obset-id "01" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 16247 :visit-id "01" :orbit-number 1 :pcs-time 383 :si-vis-utilization 2902 :al-overhead-at-end 116 :internal-dur-at-end 1015 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3285 :pcs-gap 0 ) true 1 0 The scheduling data was generated by CASM 29.0. CASM was run in Phase II mode. /tmp/OPVisit13624936262326945877.xml (Tic-Visit :proposal-id 16247 :visit-id "02" :proposal-version -1 :trans-version "20200619" :date "31-Jan-2022 10:34:06.0" :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 2305472 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 16247 :visit-id "02" :obset-id "02" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 16247 :visit-id "02" :orbit-number 1 :pcs-time 383 :si-vis-utilization 2902 :al-overhead-at-end 116 :internal-dur-at-end 1015 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3285 :pcs-gap 0 ) true 1 0