17928( 2) - 16-Jan-2025 21:00:51 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 17928 Version: 2 Check-in Time: 16-Jan-2025 21:00:51 STScI Edit Number: 0 Title Return to Eden: Massive Star Formation in the Time Domain ------------------------------------------------------------------------------------ Type Cycle GO 32 ------------------------------------------------------------------------------------ Investigators Contact? PI: Dr. Ruben Fedriani Instituto de Astrofisica de Andalucia Y (IAA) CoI: Prof. Jonathan Charles Tan Chalmers University of Technology N CoI: Dr. Yu Cheng National Astronomical Observatory of Japan N (NAOJ) CoI: Dr. Morten Andersen European Southern Observatory - Germany N CoI: Dr. Yichen Zhang Shanghai Jiao Tong University N CoI: Prof. Zhi-Yun Li The University of Virginia N ------------------------------------------------------------------------------------ Abstract Massive stars announce their birth with accretion powered fireworks, piercing powerful jets through their natal clouds. Lower-mass sibling stars dance around the cradle, swirling and sparkling in its deep gravitational well. Here we propose to survey this activity with a return to four massive protostellar systems, first observed by HST WFC3/IR in 2016. Combined with existing archival data, this will then yield a total sample of seven sources with such two-epoch observations. Protostellar jets are expected to have terminal velocities similar to the escape speed of their launching region from the inner disk near the protostellar surface, which can be greater than 1000 km/s. We will accurately measure the plane of sky speeds and directions of jet knots, especially as traced by [FeII]. These measurements will be combined with ancillary NIR spectroscopic data to yield the most complete kinematic characterization of these massive protostellar outflows, providing powerful diagnostics of the massive star formation process. The flux variability of the jet knots, scattered light from the massive protostar, and from low-mass YSOs will also be studied, delivering crucial measures of outflow and accretion variability. To achieve these science goals requires precise photometric measurements with HST-WFC3/IR for direct comparison with the earlier epoch images. ------------------------------------------------------------------------------------ Observations Description ------------------------ This program will observe four high-mass young stellar objects driving powerful jets. These observations will be a second epoch where the first epoch observations were taken back in 2016 with exact same instruments and filters. We aim at measuring proper motions from the jet knots driven by the massive protostars as well as to study variability in the field. Each orbit will observe one region with the four filters, namely F110W and F160W for broad-band filters and F128N and F164N for narrow-band filters. ------------------------------------------------------------------------------------ 17928( 2) - 16-Jan-2025 21:00:51 - [ 2] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 IRAS07299-16 STAR, YSO RA=07H32M7.0000S, J2000 V = 25 J=13.45; H=10.76 51 DEC=-16D58'40.00" Reference Frame: ICRS Comments: This object was generated by the targetselector and retrieved from the SIMBAD database. Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 2015.5 0.0 0.0 0.0 ------------------------------------------------------------------------------------------------------------------------------------ 2 G339.88-1.26 STAR, YSO RA=16H52M4.6600S, J2000 V = 25 J=13.9; H=13.3 DEC=-46D08'34.20" Reference Frame: ICRS Comments: This object was generated by the targetselector and retrieved from the SIMBAD database. Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 2015.5 0.0 0.0 0.0 ------------------------------------------------------------------------------------------------------------------------------------ 3 G032.03+00.0 STAR, YSO RA=18H49M37.0500S, J2000 J=14.7; H=12.9 5 DEC=-00D46'50.22" Reference Frame: ICRS Comments: This object was generated by the targetselector and retrieved from the SIMBAD database. Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 2015.5 0.0 0.0 0.0 ------------------------------------------------------------------------------------------------------------------------------------ 4 G028.20-00.0 STAR, YSO RA=18H42M58.1200S, J2000 J=22.27; H=18.04 5 DEC=-04D13'57.51" Reference Frame: ICRS Comments: This object was generated by the targetselector and retrieved from the SIMBAD database. Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 2015.5 0.0 0.0 0.0 ------------------------------------------------------------------------------------------------------------------------------------ 17928( 2) - 16-Jan-2025 21:00:51 - [ 3] Visit: 01 (IRAS07299 visit) Visit Requirements: On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 IRAS07299-1 WFC3/IR MULTIAC IR F110W NSAMP=8, SAMP-SEQ=STEP50 1 DEF POS TARG 0, 0 651 CUM (149.231 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 IRAS07299-1 WFC3/IR MULTIAC IR F128N NSAMP=12, SAMP-SEQ=STEP50 1 DEF POS TARG 0, 0 651 CUM (349.233 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 IRAS07299-1 WFC3/IR MULTIAC IR F160W NSAMP=8, SAMP-SEQ=STEP50 1 DEF POS TARG 0, 0 651 CUM (149.231 S) ------------------------------------------------------------------------------------------------------------------------------------ 4 IRAS07299-1 WFC3/IR MULTIAC IR F164N NSAMP=14, SAMP-SEQ=STEP50 1 DEF POS TARG 0, 0 651 CUM (449.234 S) ------------------------------------------------------------------------------------------------------------------------------------ 5 IRAS07299-1 WFC3/IR MULTIAC IR F128N NSAMP=12, SAMP-SEQ=STEP50 1 DEF POS TARG 0.474, 0.424 651 CUM (349.233 S) ------------------------------------------------------------------------------------------------------------------------------------ 6 IRAS07299-1 WFC3/IR MULTIAC IR F110W NSAMP=8, SAMP-SEQ=STEP50 1 DEF POS TARG 0.474, 0.424 651 CUM (149.231 S) ------------------------------------------------------------------------------------------------------------------------------------ 7 IRAS07299-1 WFC3/IR MULTIAC IR F164N NSAMP=14, SAMP-SEQ=STEP50 1 DEF POS TARG 0.474, 0.424 651 CUM (449.234 S) ------------------------------------------------------------------------------------------------------------------------------------ 8 IRAS07299-1 WFC3/IR MULTIAC IR F160W NSAMP=8, SAMP-SEQ=STEP50 1 DEF POS TARG 0.474, 0.424 651 CUM (149.231 S) ------------------------------------------------------------------------------------------------------------------------------------ 9 IRAS07299-1 WFC3/IR MULTIAC IR F160W NSAMP=6, SAMP-SEQ=STEP50 1 DEF (49.23 POS TARG 0.288, 0.288 651 CUM S) ------------------------------------------------------------------------------------------------------------------------------------ Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ 17928( 2) - 16-Jan-2025 21:00:51 - [ 4] Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ IRAS07299-1651 1 WFC3/IR MULTIAC IR F110W none none none none 1 N/A CUM IRAS07299-1651 2 WFC3/IR MULTIAC IR F128N none none none none 1 N/A CUM IRAS07299-1651 3 WFC3/IR MULTIAC IR F160W none none none none 1 N/A CUM IRAS07299-1651 4 WFC3/IR MULTIAC IR F164N none none none none 1 N/A CUM IRAS07299-1651 5 WFC3/IR MULTIAC IR F128N none none none none 1 N/A CUM IRAS07299-1651 6 WFC3/IR MULTIAC IR F110W none none none none 1 N/A CUM IRAS07299-1651 7 WFC3/IR MULTIAC IR F164N none none none none 1 N/A CUM IRAS07299-1651 8 WFC3/IR MULTIAC IR F160W none none none none 1 N/A CUM IRAS07299-1651 9 WFC3/IR MULTIAC IR F160W none none none none 1 N/A CUM 17928( 2) - 16-Jan-2025 21:00:51 - [ 5] Visit: 02 (G339 visit) Visit Requirements: On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 G339.88-1.2 WFC3/IR MULTIAC IR F110W NSAMP=8, SAMP-SEQ=STEP50 1 DEF POS TARG 0, 0 6 CUM (149.231 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 G339.88-1.2 WFC3/IR MULTIAC IR F128N NSAMP=12, SAMP-SEQ=STEP50 1 DEF POS TARG 0, 0 6 CUM (349.233 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 G339.88-1.2 WFC3/IR MULTIAC IR F160W NSAMP=8, SAMP-SEQ=STEP50 1 DEF POS TARG 0, 0 6 CUM (149.231 S) ------------------------------------------------------------------------------------------------------------------------------------ 4 G339.88-1.2 WFC3/IR MULTIAC IR F164N NSAMP=14, SAMP-SEQ=STEP50 1 DEF POS TARG 0, 0 6 CUM (449.234 S) ------------------------------------------------------------------------------------------------------------------------------------ 5 G339.88-1.2 WFC3/IR MULTIAC IR F128N NSAMP=12, SAMP-SEQ=STEP50 1 DEF POS TARG 0.474, 0.424 6 CUM (349.233 S) ------------------------------------------------------------------------------------------------------------------------------------ 6 G339.88-1.2 WFC3/IR MULTIAC IR F110W NSAMP=8, SAMP-SEQ=STEP50 1 DEF POS TARG 0.474, 0.424 6 CUM (149.231 S) ------------------------------------------------------------------------------------------------------------------------------------ 7 G339.88-1.2 WFC3/IR MULTIAC IR F164N NSAMP=14, SAMP-SEQ=STEP50 1 DEF POS TARG 0.474, 0.424 6 CUM (449.234 S) ------------------------------------------------------------------------------------------------------------------------------------ 8 G339.88-1.2 WFC3/IR MULTIAC IR F160W NSAMP=8, SAMP-SEQ=STEP50 1 DEF POS TARG 0.474, 0.424 6 CUM (149.231 S) ------------------------------------------------------------------------------------------------------------------------------------ 9 G339.88-1.2 WFC3/IR MULTIAC IR F160W NSAMP=6, SAMP-SEQ=STEP50 1 DEF (49.23 POS TARG 0.288, 0.288 6 CUM S) ------------------------------------------------------------------------------------------------------------------------------------ Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ 17928( 2) - 16-Jan-2025 21:00:51 - [ 6] Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ G339.88-1.26 1 WFC3/IR MULTIAC IR F110W none none none none 1 N/A CUM G339.88-1.26 2 WFC3/IR MULTIAC IR F128N none none none none 1 N/A CUM G339.88-1.26 3 WFC3/IR MULTIAC IR F160W none none none none 1 N/A CUM G339.88-1.26 4 WFC3/IR MULTIAC IR F164N none none none none 1 N/A CUM G339.88-1.26 5 WFC3/IR MULTIAC IR F128N none none none none 1 N/A CUM G339.88-1.26 6 WFC3/IR MULTIAC IR F110W none none none none 1 N/A CUM G339.88-1.26 7 WFC3/IR MULTIAC IR F164N none none none none 1 N/A CUM G339.88-1.26 8 WFC3/IR MULTIAC IR F160W none none none none 1 N/A CUM G339.88-1.26 9 WFC3/IR MULTIAC IR F160W none none none none 1 N/A CUM 17928( 2) - 16-Jan-2025 21:00:51 - [ 7] Visit: 03 (G032 visit) Visit Requirements: On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 G032.03+00. WFC3/IR MULTIAC IR F110W NSAMP=8, SAMP-SEQ=STEP50 1 DEF POS TARG 0, 0 05 CUM (149.231 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 G032.03+00. WFC3/IR MULTIAC IR F128N NSAMP=12, SAMP-SEQ=STEP50 1 DEF POS TARG 0, 0 05 CUM (349.233 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 G032.03+00. WFC3/IR MULTIAC IR F160W NSAMP=8, SAMP-SEQ=STEP50 1 DEF POS TARG 0, 0 05 CUM (149.231 S) ------------------------------------------------------------------------------------------------------------------------------------ 4 G032.03+00. WFC3/IR MULTIAC IR F164N NSAMP=14, SAMP-SEQ=STEP50 1 DEF POS TARG 0, 0 05 CUM (449.234 S) ------------------------------------------------------------------------------------------------------------------------------------ 5 G032.03+00. WFC3/IR MULTIAC IR F128N NSAMP=12, SAMP-SEQ=STEP50 1 DEF POS TARG 0.474, 0.424 05 CUM (349.233 S) ------------------------------------------------------------------------------------------------------------------------------------ 6 G032.03+00. WFC3/IR MULTIAC IR F110W NSAMP=8, SAMP-SEQ=STEP50 1 DEF POS TARG 0.474, 0.424 05 CUM (149.231 S) ------------------------------------------------------------------------------------------------------------------------------------ 7 G032.03+00. WFC3/IR MULTIAC IR F164N NSAMP=14, SAMP-SEQ=STEP50 1 DEF POS TARG 0.474, 0.424 05 CUM (449.234 S) ------------------------------------------------------------------------------------------------------------------------------------ 8 G032.03+00. WFC3/IR MULTIAC IR F160W NSAMP=8, SAMP-SEQ=STEP50 1 DEF POS TARG 0.474, 0.424 05 CUM (149.231 S) ------------------------------------------------------------------------------------------------------------------------------------ 9 G032.03+00. WFC3/IR MULTIAC IR F160W NSAMP=6, SAMP-SEQ=STEP50 1 DEF (49.23 POS TARG 0.288, 0.288 05 CUM S) ------------------------------------------------------------------------------------------------------------------------------------ Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ 17928( 2) - 16-Jan-2025 21:00:51 - [ 8] Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ G032.03+00.05 1 WFC3/IR MULTIAC IR F110W none none none none 1 N/A CUM G032.03+00.05 2 WFC3/IR MULTIAC IR F128N none none none none 1 N/A CUM G032.03+00.05 3 WFC3/IR MULTIAC IR F160W none none none none 1 N/A CUM G032.03+00.05 4 WFC3/IR MULTIAC IR F164N none none none none 1 N/A CUM G032.03+00.05 5 WFC3/IR MULTIAC IR F128N none none none none 1 N/A CUM G032.03+00.05 6 WFC3/IR MULTIAC IR F110W none none none none 1 N/A CUM G032.03+00.05 7 WFC3/IR MULTIAC IR F164N none none none none 1 N/A CUM G032.03+00.05 8 WFC3/IR MULTIAC IR F160W none none none none 1 N/A CUM G032.03+00.05 9 WFC3/IR MULTIAC IR F160W none none none none 1 N/A CUM 17928( 2) - 16-Jan-2025 21:00:51 - [ 9] Visit: 04 (G028 visit) Visit Requirements: On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 G028.20-00. WFC3/IR MULTIAC IR F110W NSAMP=8, SAMP-SEQ=STEP50 1 DEF POS TARG 0, 0 05 CUM (149.231 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 G028.20-00. WFC3/IR MULTIAC IR F128N NSAMP=12, SAMP-SEQ=STEP50 1 DEF POS TARG 0, 0 05 CUM (349.233 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 G028.20-00. WFC3/IR MULTIAC IR F160W NSAMP=8, SAMP-SEQ=STEP50 1 DEF POS TARG 0, 0 05 CUM (149.231 S) ------------------------------------------------------------------------------------------------------------------------------------ 4 G028.20-00. WFC3/IR MULTIAC IR F164N NSAMP=14, SAMP-SEQ=STEP50 1 DEF POS TARG 0, 0 05 CUM (449.234 S) ------------------------------------------------------------------------------------------------------------------------------------ 5 G028.20-00. WFC3/IR MULTIAC IR F128N NSAMP=12, SAMP-SEQ=STEP50 1 DEF POS TARG 0.474, 0.424 05 CUM (349.233 S) ------------------------------------------------------------------------------------------------------------------------------------ 6 G028.20-00. WFC3/IR MULTIAC IR F110W NSAMP=8, SAMP-SEQ=STEP50 1 DEF POS TARG 0.474, 0.424 05 CUM (149.231 S) ------------------------------------------------------------------------------------------------------------------------------------ 7 G028.20-00. WFC3/IR MULTIAC IR F164N NSAMP=14, SAMP-SEQ=STEP50 1 DEF POS TARG 0.474, 0.424 05 CUM (449.234 S) ------------------------------------------------------------------------------------------------------------------------------------ 8 G028.20-00. WFC3/IR MULTIAC IR F160W NSAMP=8, SAMP-SEQ=STEP50 1 DEF POS TARG 0.474, 0.424 05 CUM (149.231 S) ------------------------------------------------------------------------------------------------------------------------------------ 9 G028.20-00. WFC3/IR MULTIAC IR F160W NSAMP=6, SAMP-SEQ=STEP50 1 DEF (49.23 POS TARG 0.288, 0.288 05 CUM S) ------------------------------------------------------------------------------------------------------------------------------------ Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ 17928( 2) - 16-Jan-2025 21:00:51 - [ 10] Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ G028.20-00.05 1 WFC3/IR MULTIAC IR F110W none none none none 1 N/A CUM G028.20-00.05 2 WFC3/IR MULTIAC IR F128N none none none none 1 N/A CUM G028.20-00.05 3 WFC3/IR MULTIAC IR F160W none none none none 1 N/A CUM G028.20-00.05 4 WFC3/IR MULTIAC IR F164N none none none none 1 N/A CUM G028.20-00.05 5 WFC3/IR MULTIAC IR F128N none none none none 1 N/A CUM G028.20-00.05 6 WFC3/IR MULTIAC IR F110W none none none none 1 N/A CUM G028.20-00.05 7 WFC3/IR MULTIAC IR F164N none none none none 1 N/A CUM G028.20-00.05 8 WFC3/IR MULTIAC IR F160W none none none none 1 N/A CUM G028.20-00.05 9 WFC3/IR MULTIAC IR F160W none none none none 1 N/A CUM 17928( 2) - 16-Jan-2025 21:00:51 - [ 11] Summary Form for Proposal 17928 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures IR ------------------------------------------------------------------------------------------------------------------------------------ Configurations WFC3/IR ------------------------------------------------------------------------------------------------------------------------------------ Opmodes MULTIACCUM ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters NSAMP=12, NSAMP=14, NSAMP=6, NSAMP=8, SAMP-SEQ=STEP50 ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements POS TARG 0, 0, POS TARG 0.288, 0.288, POS TARG 0.474, 0.424 ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F110W, F128N, F160W, F164N ------------------------------------------------------------------------------------------------------------------------------------ Target Names G028.20-00.05, G032.03+00.05, G339.88-1.26, IRAS07299-1651 ------------------------------------------------------------------------------------------------------------------------------------