0 Assigned ID: 407 ----- Attempting Submission 1 (Fri Apr 07 05:53:34 GMT 2017) ----- HST Phase I Proposal 407 (HH8081apt) successfully submitted. Receipt: # 407-1 ----- Attempting Submission 2 (Fri Apr 07 21:10:20 GMT 2017) ----- 0 ----- Attempting Submission 1 (Mon Jul 17 21:39:39 GMT 2017) ----- Luminous Herbig-Haro objects from a massive protostar: The unique case of HH 80/81 Herbig-Haro (HH) objects are the optical manifestations of shock waves excited by outflows from young stars. They represent one of the few classes of spatially extended astronomical objects where both structural changes and proper motions can be measured on time scales of years to decades. HH 80/81 is a pair of HH objects in Sagittarius which are the intrinsically most luminous HH objects known. The driving source of HH 80/81 is the embedded star IRAS 18162-2048, which has a luminosity of 20,000 Lsun and excites a compact HII region, suggesting that it is a newborn massive star. HH objects associated with massive young stars are very rare, only a handful of cases are known, but what makes the HH 80/81 source unique among massive protostars is that it produces a finely collimated bipolar radio jet with extremely high velocity and pointing straight to HH 80/81. We propose to observe the HH~80/81 complex with WFC3 and the following four filters: Halpha 6563, Hbeta 4861, [SII] 6717/31, and [OIII] 5007. First epoch HST images were obtained 22 years ago, which now allows a very precise determination of proper motions. Groundbased optical and radio proper motions are not only uncertain, but actually contradict each other, a controversy that will be resolved by HST. The fine resolution of WFC3 allows a study of both fine structural details and structural changes of the shocks. Finally we will use a sophisticated adaptive grid code to interpret the (de-reddened) line ratios across the shocks. Obtain images of HH 80/81 in 4 narrow-band filters, WFC3/UVIS F656N (H-alpha), F487N (H-beta), F673N ([SII]), and F502N ([OIII]. The one orbit of F656N imaging will consist of two exposures taken with a slight dither to fill-in the chip gaps and facilitate cosmic ray and hot pixel removal. Two F487N images will be acquired during each of 2 orbits. The 4 images will be dithered with a small offset pattern to fill-in the gap between the CCDs A pattern of six images in three orbits each will be acquired in both the F673N and F502N filters. Stellar Physics 6 false false false false false false SUPPORTED ISM HERBIG-HARO OBJECT This object was generated by the targetselector and retrieved from the SIMBAD database. J2000 J2000 WFC3/UVIS Imaging No No F656N WFC3/UVIS Imaging No No F487N WFC3/UVIS Imaging No No F673N WFC3/UVIS Imaging No No F502N POS-TARG DITHER DITHER 4 2.414 WFC3-UVIS-DITHER-BOX false 81.785 true 0.112 0.173 2 85.759 POS-TARG WFC3-UVIS-GAP-LINE 23.884 1 false /Users/bally/PROPOSALS/2017/HST_Cycle25/HH80_81/OP-cache/15253_PhaseII-v01.xml The scheduling data was generated by CASM 25.2. CASM was run in Phase II mode. 1 orbit of F656N imaging (Tic-Visit :proposal-id 15353 :visit-id "01" :proposal-version -1 :trans-version "20170613" :date "15-Jul-2017 09:18:15.0" :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 577488 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 15353 :visit-id "01" :obset-id "01" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 15353 :visit-id "01" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2883 :al-overhead-at-end 123 :internal-dur-at-end 668 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3217 :pcs-gap 0 ) true 1 0 /Users/bally/PROPOSALS/2017/HST_Cycle25/HH80_81/OP-cache/15253_PhaseII-v02.xml The scheduling data was generated by CASM 25.2. CASM was run in Phase II mode. 2 orbits of F487N imaging (Tic-Visit :proposal-id 15353 :visit-id "02" :proposal-version -1 :trans-version "20170613" :date "15-Jul-2017 09:18:20.0" :trans-errors '(:WARNINGS 0 :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 1154976 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 15353 :visit-id "02" :obset-id "02" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 15353 :visit-id "02" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2884 :al-overhead-at-end 122 :internal-dur-at-end 0 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3217 :pcs-gap 0 ) (Tic-Orbit :proposal-id 15353 :visit-id "02" :orbit-number 2 :pcs-time 222 :si-vis-utilization 2990 :al-overhead-at-end 122 :internal-dur-at-end 668 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3217 :pcs-gap 0 ) true 2 0 /Users/bally/PROPOSALS/2017/HST_Cycle25/HH80_81/OP-cache/15253_PhaseII-v03.xml The scheduling data was generated by CASM 25.2. CASM was run in Phase II mode. First 2 orbits of th 3 orbits of F673N imaging with WFC3 (Tic-Visit :proposal-id 15353 :visit-id "03" :proposal-version -1 :trans-version "20170613" :date "15-Jul-2017 09:18:24.0" :trans-errors '(:WARNINGS 0 :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 1154976 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 15353 :visit-id "03" :obset-id "03" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 15353 :visit-id "03" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2884 :al-overhead-at-end 122 :internal-dur-at-end 0 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3217 :pcs-gap 0 ) (Tic-Orbit :proposal-id 15353 :visit-id "03" :orbit-number 2 :pcs-time 222 :si-vis-utilization 2990 :al-overhead-at-end 122 :internal-dur-at-end 668 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3217 :pcs-gap 0 ) true 2 0 /Users/bally/PROPOSALS/2017/HST_Cycle25/HH80_81/OP-cache/15253_PhaseII-v04.xml The scheduling data was generated by CASM 25.2. CASM was run in Phase II mode. 1 orbits of F673N imaging with WFC3 (Tic-Visit :proposal-id 15353 :visit-id "04" :proposal-version -1 :trans-version "20170613" :date "15-Jul-2017 09:18:27.0" :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 577488 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 15353 :visit-id "04" :obset-id "04" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 15353 :visit-id "04" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2884 :al-overhead-at-end 122 :internal-dur-at-end 668 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3217 :pcs-gap 0 ) true 1 0 /Users/bally/PROPOSALS/2017/HST_Cycle25/HH80_81/OP-cache/15253_PhaseII-v05.xml The scheduling data was generated by CASM 25.2. CASM was run in Phase II mode. First 2 orbits of F502N imaging with WFC3 (Tic-Visit :proposal-id 15353 :visit-id "05" :proposal-version -1 :trans-version "20170613" :date "15-Jul-2017 09:18:31.0" :trans-errors '(:WARNINGS 0 :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 1154976 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 15353 :visit-id "05" :obset-id "05" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 15353 :visit-id "05" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2884 :al-overhead-at-end 122 :internal-dur-at-end 0 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3217 :pcs-gap 0 ) (Tic-Orbit :proposal-id 15353 :visit-id "05" :orbit-number 2 :pcs-time 222 :si-vis-utilization 2990 :al-overhead-at-end 122 :internal-dur-at-end 668 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3217 :pcs-gap 0 ) true 2 0 /Users/bally/PROPOSALS/2017/HST_Cycle25/HH80_81/OP-cache/15253_PhaseII-v06.xml The scheduling data was generated by CASM 25.2. CASM was run in Phase II mode. 1 orbit of F502N imaging with WFC3 (Tic-Visit :proposal-id 15353 :visit-id "06" :proposal-version -1 :trans-version "20170613" :date "15-Jul-2017 09:18:33.0" :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 577488 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 15353 :visit-id "06" :obset-id "06" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 15353 :visit-id "06" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2884 :al-overhead-at-end 122 :internal-dur-at-end 668 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3217 :pcs-gap 0 ) true 1 0