As part of a project (Cosmic-Lab) aimed at using Globular Clusters (GCs) as natural laboratory to study dynamics and stellar evolution, here we present a proposal focussed on binary Millisecond Pulsars (MSPs). We propose to search for the companion stars to binary MSPs in 4 GCs (namely NGC6440, M5, NGC6838 and NGC6544), where recent radio observations have found particularly interesting objects. To achieve this challenging goal, we intend to exploit the imaging capabilities of the WFC3 and a suitable observing strategy, thus to secure deep, multi-band, time-resolved datasets where even the faintest companions can be identified. This program is the result of a large collaboration among the major groups (lead by Freire, Ransom, Stairs and Possenti) which are performing extensive MSP search in the radio bands, and our group which has a large experience in high-precision stellar photometry and astrometry in crowded stellar fields. This collaboration already produced a number of outstanding results: 4 of the 7 optical counterparts to binary MSP companions known to date in GCs have been discovered by our group. The observations here proposed will (1) easily double the existing sample of known MSP companions, allowing the first meaningful approach to the study of the formation, evolution and recycling process of pulsars in GCs; (2) constrain the incidence of collisionally induced MSPs; (3) constrain the mass of the neutron star, thus opening the possibility (in the case of NGC6440 and M5) to identify the most massive NS ever measured, with a huge impact on the equation of state of the matter at nuclear equilibrium density. Observations are organized in 14 visits (10 for NGC6440 and 4 for M5 that are the only two clusters for which time has been assigned). VISIT 1-9: target NGC6440 - 9 orbits - a total of 54 exposures in the selected optical filters (F606W,F814W) are planned. Dithering is performed by applying small offsets (via POS TARG keyword) to each exposure. A few (9) parallel exposures are planned at the end of each orbit in order to not affect the execution of the primary observations. VISIT 10: target NGC6440 - 2 orbits - a total of 16 exposures in the selected IR filters (F110W,F160W). Dithering is performed with WFC3-IR_DITHERING-BOX-MIN pattern VISIT 11-14: target M5 - 4 orbits - a total of 24 exposures in the selected optical filters (F390W,F606W,F814W) are planned. Dithering is performed by applying small offsets (via POS TARG keyword) to each exposure. A few (4) parallel exposures are planned at the end of each orbit in order to not affect the execution of the primary observations. RESOLVED STELLAR POPULATIONS 12 false 0.0 0.0 false false false false SUPPORTED STELLAR CLUSTER GLOBULAR CLUSTER J2000 J2000 STELLAR CLUSTER GLOBULAR CLUSTER J2000 J2000 WFC3/UVIS Imaging No No F606W WFC3/UVIS Imaging No No F814W WFC3/IR Imaging No No F160W WFC3/IR Imaging No No F110W WFC3/UVIS Imaging No No F606W WFC3/UVIS Imaging No No F390W WFC3/UVIS Imaging No No F814W WFC3/UVIS Imaging No No F606W WFC3/UVIS Imaging No No F814W WFC3/UVIS Imaging No No F606W WFC3/UVIS Imaging No No F390W WFC3/UVIS Imaging No No F814W ACS/WFC Imaging No No F435W ACS/WFC Imaging No No F606W ACS/WFC Imaging No No F814W ACS/WFC Imaging No No F606W ACS/WFC Imaging No No F814W ACS/WFC Imaging No No F435W ACS/WFC Imaging No No F606W ACS/WFC Imaging No No F814W ACS/WFC Imaging No No F435W ACS/WFC Imaging No No F606W ACS/WFC Imaging No No F814W ACS/WFC Imaging No No F435W POS-TARG DITHER 0.572 LINE 0.365 false false 74.653 4 18.528 WFC3-IR-DITHER-BOX-MIN 3 false Timing link suitability includes constraints ([02 After 01 by 2.0 to 2.5 days] [03 After 01 by 4.3 to 4.8 days] [04 After 01 by 6.6 to 7.1 days] [05 After 01 by 8.9 to 9.4 days] [06 After 01 by 11.2 to 11.7 days] [07 After 01 by 13.5 to 14.0 days] [08 After 01 by 15.7 to 16.2 days] [09 After 01 by 18.0 to 18.5 days]) The scheduling data was generated by CASM 19.3. CASM was run in Phase II mode. 1342783227000 96.24418373121102 (Tic-Visit :proposal-id 12517 :visit-id "01" :proposal-version -1 :trans-version "20110509" :date "06-Jul-2011 18:24:18.0" :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 2016720 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 12517 :visit-id "01" :obset-id "01" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 12517 :visit-id "01" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2915 :al-overhead-at-end 92 :internal-dur-at-end 1019 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3249 :pcs-gap 0 ) true 1 0 Timing link suitability includes constraints ([02 After 01 by 2.0 to 2.5 days]) The scheduling data was generated by CASM 19.3. CASM was run in Phase II mode. 1342964491000 95.85555593333078 (Tic-Visit :proposal-id 12517 :visit-id "02" :proposal-version -1 :trans-version "20110509" :date "06-Jul-2011 18:25:05.0" :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 2016720 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 12517 :visit-id "02" :obset-id "02" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 12517 :visit-id "02" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2915 :al-overhead-at-end 92 :internal-dur-at-end 1019 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3249 :pcs-gap 0 ) true 1 0 Timing link suitability includes constraints ([03 After 01 by 4.3 to 4.8 days]) The scheduling data was generated by CASM 19.3. CASM was run in Phase II mode. (Tic-Visit :proposal-id 12517 :visit-id "03" :proposal-version -1 :trans-version "20110509" :date "06-Jul-2011 18:25:37.0" :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 2016720 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 12517 :visit-id "03" :obset-id "03" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 12517 :visit-id "03" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2915 :al-overhead-at-end 92 :internal-dur-at-end 1019 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3249 :pcs-gap 0 ) true 1 0 Timing link suitability includes constraints ([04 After 01 by 6.6 to 7.1 days]) The scheduling data was generated by CASM 19.3. CASM was run in Phase II mode. (Tic-Visit :proposal-id 12517 :visit-id "04" :proposal-version -1 :trans-version "20110509" :date "06-Jul-2011 18:26:06.0" :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 2016720 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 12517 :visit-id "04" :obset-id "04" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 12517 :visit-id "04" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2915 :al-overhead-at-end 92 :internal-dur-at-end 1019 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3249 :pcs-gap 0 ) true 1 0 Timing link suitability includes constraints ([05 After 01 by 8.9 to 9.4 days]) The scheduling data was generated by CASM 19.3. CASM was run in Phase II mode. (Tic-Visit :proposal-id 12517 :visit-id "05" :proposal-version -1 :trans-version "20110509" :date "06-Jul-2011 18:26:34.0" :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 2016720 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 12517 :visit-id "05" :obset-id "05" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 12517 :visit-id "05" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2915 :al-overhead-at-end 92 :internal-dur-at-end 1019 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3249 :pcs-gap 0 ) true 1 0 Timing link suitability includes constraints ([06 After 01 by 11.2 to 11.7 days]) The scheduling data was generated by CASM 19.3. CASM was run in Phase II mode. (Tic-Visit :proposal-id 12517 :visit-id "06" :proposal-version -1 :trans-version "20110509" :date "06-Jul-2011 18:27:06.0" :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 2016720 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 12517 :visit-id "06" :obset-id "06" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 12517 :visit-id "06" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2915 :al-overhead-at-end 92 :internal-dur-at-end 1019 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3249 :pcs-gap 0 ) true 1 0 Timing link suitability includes constraints ([07 After 01 by 13.5 to 14.0 days]) The scheduling data was generated by CASM 19.3. CASM was run in Phase II mode. (Tic-Visit :proposal-id 12517 :visit-id "07" :proposal-version -1 :trans-version "20110509" :date "06-Jul-2011 18:27:36.0" :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 2016720 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 12517 :visit-id "07" :obset-id "07" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 12517 :visit-id "07" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2915 :al-overhead-at-end 92 :internal-dur-at-end 1019 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3249 :pcs-gap 0 ) true 1 0 Timing link suitability includes constraints ([08 After 01 by 15.7 to 16.2 days]) The scheduling data was generated by CASM 19.3. CASM was run in Phase II mode. (Tic-Visit :proposal-id 12517 :visit-id "08" :proposal-version -1 :trans-version "20110509" :date "06-Jul-2011 18:28:03.0" :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 2016720 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 12517 :visit-id "08" :obset-id "08" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 12517 :visit-id "08" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2915 :al-overhead-at-end 92 :internal-dur-at-end 1019 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3249 :pcs-gap 0 ) true 1 0 Timing link suitability includes constraints ([09 After 01 by 18.0 to 18.5 days]) The scheduling data was generated by CASM 19.3. CASM was run in Phase II mode. (Tic-Visit :proposal-id 12517 :visit-id "09" :proposal-version -1 :trans-version "20110509" :date "06-Jul-2011 18:28:34.0" :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 2016720 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 12517 :visit-id "09" :obset-id "09" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 12517 :visit-id "09" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2915 :al-overhead-at-end 92 :internal-dur-at-end 1019 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3249 :pcs-gap 0 ) true 1 0 The scheduling data was generated by CASM 19.3. CASM was run in Phase II mode. 1329277226000 272.9908687660347 (Tic-Visit :proposal-id 12517 :visit-id "10" :proposal-version -1 :trans-version "20110509" :date "06-Jul-2011 18:29:51.0" :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 3690752 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 12517 :visit-id "10" :obset-id "10" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 12517 :visit-id "10" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2915 :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 3249 :pcs-gap 0 ) (Tic-Orbit :proposal-id 12517 :visit-id "10" :orbit-number 2 :pcs-time 222 :si-vis-utilization 2956 :al-overhead-at-end 0 :internal-dur-at-end 654 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3249 :pcs-gap 0 ) true 2 0 Timing link suitability includes constraints ([12 After 11 by 0.6 to 1.0 days] [13 After 11 by 1.5 to 1.9 days] [14 After 11 by 2.4 to 2.8 days]) The scheduling data was generated by CASM 19.3. CASM was run in Phase II mode. 1338988247000 136.62096633259557 (Tic-Visit :proposal-id 12517 :visit-id "11" :proposal-version -1 :trans-version "20110509" :date "06-Jul-2011 18:30:06.0" :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 2016704 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 12517 :visit-id "11" :obset-id "11" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 12517 :visit-id "11" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2901 :al-overhead-at-end 67 :internal-dur-at-end 1019 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3234 :pcs-gap 0 ) true 1 0 Timing link suitability includes constraints ([12 After 11 by 0.6 to 1.0 days]) The scheduling data was generated by CASM 19.3. CASM was run in Phase II mode. 1339068724000 135.7238791109038 (Tic-Visit :proposal-id 12517 :visit-id "12" :proposal-version -1 :trans-version "20110509" :date "06-Jul-2011 18:30:19.0" :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 2016704 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 12517 :visit-id "12" :obset-id "12" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 12517 :visit-id "12" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2901 :al-overhead-at-end 67 :internal-dur-at-end 1019 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3234 :pcs-gap 0 ) true 1 0 Timing link suitability includes constraints ([13 After 11 by 1.5 to 1.9 days]) The scheduling data was generated by CASM 19.3. CASM was run in Phase II mode. 1339120403000 135.16365745282718 (Tic-Visit :proposal-id 12517 :visit-id "13" :proposal-version -1 :trans-version "20110509" :date "06-Jul-2011 18:30:28.0" :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 2016704 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 12517 :visit-id "13" :obset-id "13" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 12517 :visit-id "13" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2901 :al-overhead-at-end 67 :internal-dur-at-end 1019 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3234 :pcs-gap 0 ) true 1 0 Timing link suitability includes constraints ([14 After 11 by 2.4 to 2.8 days]) The scheduling data was generated by CASM 19.3. CASM was run in Phase II mode. 1339202770000 134.2972429173028 (Tic-Visit :proposal-id 12517 :visit-id "14" :proposal-version -1 :trans-version "20110509" :date "06-Jul-2011 18:30:39.0" :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 2016704 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 12517 :visit-id "14" :obset-id "14" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 12517 :visit-id "14" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2901 :al-overhead-at-end 67 :internal-dur-at-end 1019 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3234 :pcs-gap 0 ) true 1 0